Quality Industrial Filter Cloth & Filter Press Cloth factory

Wirewound filter elements are often used in water filtration or food/chemical industries. They have the characteristics of large filtration flow, high precision, small pressure difference, high pressure resistance, large dirt holding capacity, and no secondary pollution. They can effectively remove suspended matter and particles in liquids, and are a widely used product.   Structural features of wire-wound filter element: When making a wire-wound filter element, the specially made coarse yarn with fluff is cross-wound on a porous skeleton, and wound layer by layer to the required specified diameter. The coarse yarn is continuously cross-wound on the skeleton to form a filter layer containing thousands of diamond-shaped holes. The diamond-shaped holes on the filter layer near the skeleton on the filter element are small, and the diamond-shaped holes become larger as they go outward, and the diamond-shaped holes are connected inside and outside to form a channel.   Working principle of wire wound filter element: In order to increase the flow of liquid in the filter element, the diamond hole channel is curved and scattered, but the diamond holes of each layer are still connected. The bending makes the diamond hole channel longer, which is equivalent to increasing the thickness of the filter layer of the filter element and improving the filtering effect. The yarn is wound with certain parameters, and a diamond curved filter channel from the outside to the inside and from large to small is formed inside the wire wound filter element. The size of the diamond hole in the inner layer of the filter element is the key to determining the accuracy of the filter element. The smaller the diamond hole, the higher the accuracy of the filter element; the larger the diamond hole, the lower the accuracy of the filter element.  

Exhibition date: June 26-28, 2024   Exhibition location: NCC, Hanoi, Vietnam   Exhibition scope: waste gas and dust treatment; solid waste treatment; water treatment equipment; resource recycling, recycling and treatment; environmental monitoring and control technology and equipment; energy-saving and environmental protection technology and equipment.   Vietnam is located in the eastern part of the Indochina Peninsula, bordering China to the north, Laos and Cambodia to the west, and facing the South China Sea to the east and south. The terrain is long and narrow from north to south, and Vietnam's economic and political centers are mostly distributed in the north and south (Hanoi & Ho Chi Minh).   We will participate in Entech Vietnam 2024 in Vietnam from June 26 to 28. If you are interested in solid-liquid separation related products, welcome to visit our booth. We provide various types of industrial products and project services. EXHIBITION HALL BOOTH NO.C46

What is a food conveyor belt Food conveyor belts are mainly made of food-grade polymer materials that are compounded by coating or calendering equipment and polyester fabrics. They are high-strength, good flexibility, non-toxic and hygienic conveyor belts. Most food tapes are compounded with US FDA food grade certification. It is a durable and flexible conveying product. Main applications of food conveyor belts Food conveyor belts are mainly used in food production, processing, packaging and transportation. Nowadays, the main material of food conveyor belts is PU material conveyor belt. In addition, there are PE conveyor belts, food-grade PVC conveyor belts, Teflon materials, silicone materials, etc. Food conveyor belts mainly transport the food materials we eat in our lives, which is directly related to human health. In the production of food conveyor belts, we must not only strictly control the raw materials, but also need to produce customized non-standard cutting and processing. Be careful not to use processed materials that are harmful to your health. Main features of food conveyor belts In addition to meeting food-grade requirements, food conveyor belts also have features such as hydrolysis resistance, aging resistance, wear resistance, oil resistance, cutting resistance, and temperature resistance. These features expand the use scenarios of food conveyor belts to a certain extent. For example, the conveyor belts we use in the slaughtering industry are also called "easy-to-clean belts." Easy-to-clean belts must be hydrolysis-resistant, washable, impact-resistant, mildew-proof and anti-bacterial.

At Watertech Africa 2024, the most professional water treatment industry exhibition in East Africa, HUADING will gather with environmental protection industry users again from June 5th to June 7th.    

We, HUADING, will participate in the China (Indonesia) International Trade Expo on June 4-7, 2024 Exhibition time: June 4-7, 2024 Exhibition Venue: Jakarta International Exhibition Center   Range of exhibition: Molds, injection molding machines, bottle blowing machines and other mechanical equipment, sewing machines and textile machinery, automobiles, motorcycles, electric vehicles, automobile and motorcycle parts, automotive supplies, generators, pump valves and pipe fittings, air coolers, air compressors, food machinery, heating Fluid equipment, hardware tools, gardening and agricultural and forestry tools, high-pressure cleaning machines, new power sources, machine tools, industrial filter cloths, etc.   HUADING invites customers at home and abroad to meet in Indonesia.

Our head office will participate in the 8th Turkish Industrial Textiles and Nonwovens Exhibition in 2024   1. Exhibition information: Exhibition time: June 4-8, 2024 Exhibition cycle: 2 years/session Exhibition location: Istanbul, Turkey   2. Exhibition introduction HIGHTEX, the international technical textiles and nonwovens exhibition, is the first and only exhibition in Turkey and the region. The HIGHTEX exhibition, held since 2005, has become one of the most important markets today, showcasing the latest innovations in industries such as technical textiles and nonwovens. The exhibition will be held concurrently with ITM International Textile Machinery Exhibition, which will be organized by Teknik Fairs Inc. and TÜ YAP.   We at HUADING and HEADING invite you to meet us at the exhibition site.

Commonly used dust bag materials in industrial metallurgy include the following:   PPS dust bag: PPS (polyphenylene sulfide) dust bag is a high-performance high-temperature resistant filter material that can work stably in high-temperature environments above 200°C. PPS material has excellent chemical stability and antioxidant properties, and can resist the erosion of various chemical substances such as acids, alkalis, and salts. In addition, PPS dust bag also has good wear resistance and fatigue resistance, and is suitable for high temperature and highly corrosive working conditions in the metallurgical industry.   PTFE dust bag: PTFE (polytetrafluoroethylene) dust bag is a filter material with chemical stability and corrosion resistance. It is resistant to almost all chemicals, including strong acids, alkalis, and organic solvents. PTFE dust bag also has excellent high temperature resistance and can be used in high temperature environments for a long time. Although its cost is relatively high, in some special metallurgical processes, such as smelting rare metals or handling toxic and hazardous substances, PTFE dust bags are highly trusted for their excellent performance.

In the metallurgical industry, the selection of dust bags basically follows the following principles:   High temperature resistance: The production process in the metallurgical industry is often accompanied by high-temperature environments, so the selected dust bag must have good high-temperature resistance to ensure normal operation under high-temperature conditions. Chemical stability: A variety of chemical substances are involved in the metallurgical production process. Dust removal bags should be able to resist the erosion of these chemicals and maintain stable filtration performance. Abrasion and stretch resistance: Dust removal bags in the metallurgical industry need to withstand the erosion of high-speed airflow and particulate matter, so they have strong wear resistance and tensile resistance to extend their service life. Filtration efficiency: The filtration efficiency of dust removal bags is directly related to the quality of the discharged air, so bags with high filtration efficiency should be selected to meet environmental protection requirements.

Three-proof needle punched filter bags are dust collecting cloth filter bags with three protection effects of "water-proof, oil-proof, and anti-static". Characteristics of three-proof needle punched filter bags: High strength and low elongation industrial yarn is used as the scrim, so that the strength is greatly improved. Using fine denier fiber, the pore size is reduced, the porosity is high, and the filtration accuracy is high. Using superior polyester fiber, the acid and alkali resistance and hydrolysis resistance are enhanced. The surface treatment is smoother, and it has the surface filtering effect as that of film coated needle punched filter bags. Low running resistance, saving energy.   Applications of three-proof needle punched filter bags: After the density of common industrial dust reaches a certain level (that is, the explosion limit), if it encounters the discharge sparks of static or external ignition and other factors, it can easily cause explosion and fire. For example, flour dust, chemical dust, coal dust, etc. may explode in case of electrostatic discharge.     In the field of bag dust collector, if these dusts need to be collected with cloth filter bags, it is required that the filter material used to make the cloth filter bags has anti-static properties. This is also suitable for occasions with a relatively large moisture content. According to the requirements of special working conditions, the filter bag needs not only water-proof and anti-static, but also oil-proof. Our company produces high-quality three-proof dust collecting filter bags with higher dust removal efficiency, which is completely suitable for the applications to such kind of industrial and mining conditions.

  “Hard work spotlights the character of people. Some turn up their sleeves. Some turn up their noses, and some don’t turn up at all.” – Sam Ewing   We, Huading Mesh Industry, are one of the well-known companies in China's wholesale market, with rich experience in providing various trade services.  

May 22-24, 2024, the 33rd New Environmental Exposition 2024. HEADING FILTER will soon meet with domestic and foreign customers in Tokyo, Japan!     HEADING FILTER insists on using technology and services to create value for the stability and efficiency of customer factory operations. At future exhibitions, the company boss will personally lead a professional and efficient overseas technical sales team. Provide "one-to-one" tailor-made solutions for exhibition visitors, demonstrating HEADING FILTER's professional technical services, continued strong R&D strength, capabilities, professionalism and comprehensive solutions.   About Japan N-EXPO The Tokyo International Environmental Protection Technology Exhibition (N-EXPO) is one of the largest environmental protection exhibitions in Asia. The exhibition was first held in 1992 with the theme of "NEW Waste Disposal Exhibition". In 2000, in order to expand the exhibition area, it was renamed "NEW Environmental Protection Exhibition". Over the years, due to the enthusiastic participation of major domestic and foreign companies and the strong support of visiting customers, the exhibition has grown into the largest environmental protection exhibition in Asia.  

In the daily industrial production of filter presses, our common question is how to choose the filter cloth suitable for our industry? How to choose filter cloth for different types of filter presses?   We select the filter cloth for the filter press based on our requirements and the properties of the filtered material, that is, the exfoliation, chemical and physical properties of the material; the dryness of the filter cake after filtration; the impact of the filtered material on a wide range, etc. The most important thing for us is to consider the nature of the filtered object, which accounts for more than 75% of the importance of selecting the filter cloth for the filter press.   The peeling performance of the filter residue directly reflects the working efficiency of the filter press equipment. The surface of the filter residue is smooth and non-adhesive, and the filtrate will quickly permeate out of the filter cloth. The filtration time is short and the efficiency is high. On the contrary, the filter residue is sticky, the filtration time will be long, and the efficiency will of course be reduced accordingly. Moreover, the stronger the adhesion, the lower the efficiency. At this time we have to choose monofilament filter cloth or satin weave filter cloth. Choose according to the acidity and alkalinity of the filtrate and other chemical properties. Choose the type of filter cloth that suits you according to the different acidity and alkalinity. Polyester filter cloth has strong acid resistance, and vinylon filter cloth has strong alkali resistance. Polypropylene filter cloth has both acid and alkali resistance. The shape of the filter residue, whether the particles are uniform, and whether the shape is hard, to consider the wear resistance of the filter cloth. The size is uneven and there are water chestnuts, so the selection is based on the degree. The ones with the best wear resistance are strip filter cloth and economical filter cloth. The temperature of the filter material also affects the filter cloth and working efficiency of the filter press. The one with high temperature resistance is polyester filter cloth. Again, this is our requirement. We want the efficiency of the filter press and the dryness of the filter residue. Regeneration performance of filter cloth. When choosing filter cloth, you should also pay attention to choosing filter cloth with good regeneration performance. The filter cloth with good regeneration performance can be washed directly on the filter press to reduce the number of cloth changes. The filtration efficiency of the replaced filter cloth is restored to more than 80% after simple processing (drying, washing, etc.). So depending on the specific nature.

1. Material reasons Polyester mesh belts are usually woven from polyester fibers. If the fiber material is of poor quality or has a short service life, it will easily cause the belt to vibrate. In addition, the thickness and strength of the mesh belt are also factors that have a greater impact on the belt screening movement.   2. Usage status When using polyester mesh belts, you need to pay attention to the following points. If used improperly, it will also cause problems with belt screening: Insufficient cleaning before use. The mesh belt should be fully cleaned before use to prevent dirt from causing the belt to move. The usage environment changes greatly. Factors such as ambient temperature and humidity will cause changes in the length of the mesh belt, causing the belt to move. Used for too long. Long-term use will cause the mesh belt to age and lose elasticity, which is also one of the reasons for belt sifting.

Our head office HEADING FILTER participated in the IE EXPO CHINA 2024 exhibition held in Shanghai, China.   HUADING staff are waiting for you at E6-B90. Everyone is welcome to visit and communicate!

What is a carbon fiber pleated filter element? The filter material of the carbon fiber pleated filter element is made of high-quality activated carbon fiber, and the shell material is made of polypropylene, which is produced by hot-melt welding. It is resistant to acids and alkalis, has fast adsorption, and has excellent performance in removing benzene substances. It is suitable for filtering liquids to reduce oil content and eliminate bacteria.   Carbon fiber pleated filter element features: Large adsorption capacity High mechanical strength Good heat resistance Without any adhesive It has strong adsorption capacity for chlorine, pigments and organic odors.   Application fields of carbon fiber pleated filter element： Decolorization and filtration of organic solvents Liquor turbidity reduction and sterilization filtration It has good effects on residual chlorine removal, odor removal and rust filtration in water treatment, especially on the adsorption of benzene and heavy metal ions.

HEADING has an excellent reputation and strong strength in China's environmental protection industry. It continues to provide customers with innovative, high-quality products and services, and is committed to becoming a leader in the industry and leading the development trend of the market. HEADING is a professional manufacturer of filter cloth and filter bags, serving industrial air emissions. HUADING is a professional manufacturer of polyester mesh and filter belts, serving solid-liquid separation.  

The cartridge dust collector is composed of a filter cartridge as a filter element or a pulse injection dust collector. Cartridge dust collectors can be divided into oblique plug-in type, side-mounted type, ceiling-mounted type and top-mounted type according to the installation method. Cartridge dust collectors can be divided into long fiber polyester cartridge dust collectors, composite fiber cartridge dust collectors, anti-static cartridge dust collectors, flame retardant cartridge dust collectors, film-coated cartridge dust collectors, and nanofiltration filters according to the filter material. Tube dust collector, etc.   Cartridge dust collectors have achieved remarkable success in the industrial environmental protection industry due to their excellent dust removal effect and wide range of applications. We, HUADING FILTER, supply dust removal filter cartridges with a wide range of product specifications to domestic and foreign environmental protection company customers.  

Heading filter invites you to visit the 2024 German Industrial Textiles and Nonwovens Exhibition   【Exhibition】Techtextil—International Trade Fair for Technical Textiles and Nonwovens 【Exhibition Venue】 Frankfurt Exhibition Center, Germany 【Exhibition Time】 April 23-April 26, 2024 (Tuesday to Friday) 【Held period】Every two years 【Organizer】GEEFERA MEDIA LLC (formerly Messe Frankfurt Rus)   See you in Frankfurt 11-G16C---Heading Filter  

HEADING FILTER sincerely invites you to visit the "2024 13th Shanghai International New Energy Lithium Battery Technology Exhibition" to be held at the Shanghai New International Expo Center from March 14th to 16th, 2024. Booth number: 2008. Industry personnel at home and abroad are sincerely invited to visit and provide guidance.    

  On the afternoon of March 4, 2024, Beijing time. Relevant experts and leaders of the China Industrial Textiles Industry Association formally passed the resolution after strict review. The "China PTFE Filter Material R&D Center" will be established in Heading Filter....  

On February 29, 2024, Heading Filter (Wuhan) Co., Ltd. and Trützschler Jiaxing held a grand signing ceremony at Trützschler Shanghai.   Heading Filter (Wuhan) Co., Ltd. (hereinafter referred to as Heading Filter) has purchased an ultra-wide and ultra-high pressure Aquajet from Trützschler Textile Machinery (Jiaxing) Co., Ltd. (hereinafter referred to as Trützschler Jiaxing). This Aquajet is the world's first ultra-wide and ultra-high pressure Aquajet, with water jet pressure of up to 400 bar, making it the world's first ultra-high pressure Aquajet with a width of 3600mm. It is planned to be officially put into production in September 2024. The delivery of this Aquajet marks that the production capacity of the Trützschler Jiaxing Aquajet has reached the world's leading level.  

Air filters need to separate solid or liquid particles from aerosols. There are generally four methods: Mechanical separation: inertial dust collector, gravity dust collector, cyclone dust collector; Electric power separation: single-stage electrostatic precipitator, double-stage electrostatic precipitator; Washing and separation: water film dust collector, spray washing dust collector, venturi dust collector; Filtration and separation: bag filter, packed filter.   Judging from the main purpose of air cleaning technology to purify the air, the concentration of particles in the air is very low (compared to industrial dust removal) and the size of the particles is very small. In order to ensure the reliability of the final filtration effect, filtration separation with barrier properties is mainly used to remove particles in the air flow. Secondly, power separation is often used.

Filtration and Separation Textiles usually refer to textiles used in the fields of gas/solid separation, liquid/solid separation, gas/liquid separation, solid/solid separation, liquid/liquid separation, gas/gas separation and other fields.   Such as high-purity water pre-filtration in the food, electronics, pharmaceutical and chemical industries; Juice, beverage, and alcohol filtration; air filtration of large building air supply systems; Car air, fuel and oil filtration; Industrial high temperature flue gas filtration, etc. These all use filter materials made of special fibers.   Huading filter materials are now used to separate solid particles in industrial gas filtration systems. These tools range from single applications in non-capital media (capable of being replaced) to include fibers, fabrics, ceramics, membranes, mesh and metallic media. Semi-permanent media tends to be cleaned online or offline and is primarily intended for long-term (several years) lifetimes.   Fabric media comes in two main ways: woven or non-woven, and is made from a variety of materials using a variety of manufacturing methods. Object carriers are usually produced in sheet form and then formed into bags. Woven fabrics use yarn balls or filaments interwoven in specific repeating patterns (as well as garment fabrics), while non-woven carriers are usually composed of multiple fibers or threads at random, often with secondary processing, such as needle punching, punching. Some nonwoven supports may consist of a membrane or embedded in a carrier web or scrim. Fabric filters are designed for long-term use in cleaning production lines (on site).   When applying gas filter media fabric, it is mainly made into filter bags for bag filters, in which cylindrical filter bags are arranged vertically. The advantage of fabric filters is the ability to effectively remove most particles from high exhaust gas flows using media with moderate pressure drop.

Air filter is a commonly used equipment in industrial dust removal. Its function is to filter out dust, dust and other pollutants in the air through filtration technology. However, different air filters have differences in filtration efficiency, and there are many factors that cause these differences.   Material of filter bag and filter cartridge: The selection and application of filter bag and filter cartridge materials are the core technology of dust removal equipment and play a decisive role in the performance of high-efficiency air filters. Since the environment of each dust collection point is different, the nature, temperature and technical requirements of the dust being processed are also different. Therefore, different filter materials should be selected under different conditions and corresponding technical protective measures should be taken.   The requirements for filter bag materials include the following technical properties: Filter bag materials are suitable for different temperatures； Good peelability； Easy to clean dust,good breathability,low resistance； High filtration efficiency,high strength； Can withstand high-intensity cleaning,long lasting； The price is reasonable.   Influence of filter wind speed: Wind speed increases and drag increases, while wind speed decreases and drag decreases. For large particles that mainly move by inertia, the wind speed increases, the inertia of the particles increases, and the possibility of encountering obstacles increases, thus improving the filtration efficiency. However, the inertia increases and the obstacle's repulsive force on the particles increases. If the van der Waals forces cannot overcome the rebound force, the particles will escape. Therefore, sometimes the wind speed increases and the filtration efficiency of the filter for large particles decreases. For small particles whose movement is dominated by diffusion, the filtration efficiency depends on the residence time of the particles in the filter medium. Retention time is shortened (wind speed is increased), particles are less likely to hit obstacles, and filtration efficiency is reduced. If the material is electrostatically charged, the filtration efficiency depends on the residence time of the airflow in the material. The lower the filtration wind speed, the higher the filtration efficiency is for both large and small particles. Electrostatic materials are very sensitive to filter wind speed. For example, when measured at a wind speed of 1 cm/s, the penetration rate of 0.3μm dust is 0.01% (filtration efficiency is 99.99%). When the filtration wind speed was increased to 5.3 cm/s, the measured permeability was 1.5% (the efficiency of the filter was only 98.5%), and the transmittance was two orders of magnitude worse. Effect of humidity: Generally, changing humidity does not affect air filter efficiency and resistance. However, when air humidity is high, the filter media will condense and a water film will exist on the contact surface between particles and obstacles. The contact surface between the two is larger and the bonding force is greater, so large particles are no longer so easy to rebound. It can improve the filtration efficiency of large particles.    Air leakage: Air leakage directly affects the dust collection effect and the service life of the dust collector, and the air leakage rate is required to be

Filter elements with the same specifications and parameters and the same filter material have great differences in filtration efficiency and product life under different working and usage environments.   The following briefly introduces the factors affecting filtering：   Influence of dust characteristics The impact of dust on filtration efficiency is mainly reflected in the distribution of dust particle size. Under the action of various filtration mechanisms, particles with smaller particle sizes are deposited between fibers under the action of Brownian diffusion. When the particle size increases from small to small, the Brownian diffusion gradually weakens, and the deposition caused by barrier retention and inertial collision increases. Therefore, the overall filtration efficiency first decreases and then increases as the dust particle size increases. When the particle sizes of dust particles are the same, the different characteristics of the dust itself will also have a certain impact on the filtration efficiency. The filtration efficiency increases as the adhesion and hygroscopicity of the filter material increase.   Structural characteristics of filter media The smaller the diameter of the fibers in the filter material, that is, the finer the fiber fineness, the greater the specific surface area of the fibers. Both the interception effect and the diffusion effect can be enhanced, the surface filtration effect is enhanced, and the filtration efficiency is improved. As the fiber filling rate of the filter material increases, the inertial collision effect and the barrier effect are enhanced, and the total filtration efficiency increases. However, the increase rate of operating resistance at this time is much greater than the increase rate of filtration efficiency, so the method of increasing the fiber filling rate to improve filtration efficiency must be cautious. The material of the filter material, the molding method, and the post-processing process will all have a certain impact on the filtration effect.   Characteristics of dust-laden airflow The flow rate of dust-laden airflow has a great influence on filtration efficiency. From the perspective of filtration mechanism, filtration speed mainly affects inertial collision and diffusion. As the air flow velocity increases, the Brownian diffusion effect weakens, the inertial collision effect and the column interception effect become obvious, and the overall filtration efficiency shows a downward trend. In addition, the filtration speed is also an economic indicator. Since the same air volume is processed, the higher the flow rate, the smaller the total filtration area required, the demand for filter materials and the total floor area will also be reduced, but the filtration speed will An increase will cause an increase in operating resistance, so the determination of the air flow rate needs to be determined comprehensively.

With the rapid development of industry, industrial waste gas emissions and wastewater emissions continue to increase, causing serious pollution to the environment. In order to protect the environment, many industrial enterprises must take effective waste gas and wastewater treatment measures. Mastering the industrial wastewater treatment process is of great significance to both enterprises and society.   The various terms used in filtration processes include: Media –– the filtration cloth or barrier to collect the solids Liquor –– the solution containing the liquid and solids Filtrate –– the liquid that has been filtered clear Cake –– the solids filtered out of the liquid Polishing –– the removal of the last bit of solids for a finished liquid product Washing –– pumping water or a wash liquid over the cake Pre-coat –– coating the filter cloth with a material to aid in the filtering.     Filtration is the separation of a fluid––solids solution involving the passing of this mixture through a porous barrier which retains most of the solid particulates contained in the mixture.

P84 and PPS are commonly used filter materials in the industrial field. They have high filtration efficiency and high temperature resistance.   P84 fiber It has a higher heat resistance, temperature up to 260 ℃, instantaneous reach 280 ℃ (instantaneous temperature does not exceed zero 200h), almost equal with fiberglass fiber. With irregular leaf-shaped fiber cross-section, P84 surface area increases, and improves filtration efficiency than other fibers by 15% to 20%. As dust will not infiltrated the cloth, can reduce the pressure drop at the same time, release properties, it can be used in cement plant, thermal incinerator, calcium carbide factory. Especially composite P84 fiber and fiberglass fiber, the advantages of the two materials will be played full. Following is the point need to consider when using P84 filter bag: Before the waste gas enters the bag, it is best to carry out desulfurization treatment Nitrogen oxide content NOx

The operation, maintenance and management of bag dust collectors are of great significance to ensure the stable operation of the dust collector and achieve the expected dust removal effect.   In order to ensure the long-term stable operation of the bag dust collector in its system, the dust collector must pay attention to the following matters: Before purchasing a bag dust collector, you must fully study the technical information about the dust collector based on the production process conditions, consider whether it can meet strict environmental protection requirements and the operating costs of about five years, and make a technical and economic comparison based on comprehensive factors, so as to Determine the specifications and performance of equipment and select the best and eliminate the worst; Operate strictly in accordance with the requirements of the drawings and technical instructions provided by the manufacturer, and operating conditions should not be changed at will without sufficient basis and reasons to prevent failures caused by changes in harmful operating conditions; Understand and master the technical requirements and operating points of the bag dust collector and each part of the dust removal system, pay attention to the rationality of the matching of each part, and try to avoid the situation where one is too big and the other is too small; Always pay attention to the working condition of the filter bag. If any abnormality is found, analyze the cause and deal with it in time; Always pay attention to and record the temperature, humidity and pressure of the gas entering the bag dust collector, so that the dust collector can operate under the specified parameters and avoid operating below the gas dew point temperature; Maintenance and management must be carried out according to maintenance points.

We bid farewell to the extraordinary 2023, and look forward to 2024, where HEADING opportunities and challenges coexist.   The Spring Festival, China's most important tradition, is coming soon. HEADING has successfully completed our exclusive journey in 2023. All departments are developing collaboratively and looking forward to 2024! 

Dust filter cartridges are industrial filtration consumables, and companies spend a lot of money on this every year. Therefore, it is particularly important for manufacturing companies to increase the service life of dust filter cartridges.   So how to extend the service life of the cartridge dust collector?   1. Filter cartridge blocked When the filter cartridge becomes clogged, the resistance increases and can be indicated by an increase in the differential pressure gauge reading. Blockage of the filter cartridge is the main cause of filter cartridge wear, perforation and shedding. Temporarily strengthen cleaning to eliminate clogging of the filter cartridge; Partially replace the filter cartridge; Adjust installation and operating conditions.   2. The filter cartridge is damaged The shape of the filter cartridge and the installation method and structure of the filter cartridge determine the location where the filter cartridge is prone to breakage, and can be inspected and repaired accordingly. 3. Filter cartridge aging Mainly due to the following reasons, the cause was investigated, elimination measures were taken and the filter cartridge was replaced. Hardening and shrinkage caused by abnormally high temperatures; Reaction by contact with vapor of acid, alkali or organic solvent.     ⒋. The new and old filter cartridges are different New and old filter cartridges should not be mixed to avoid damage to the equipment and normal operation. ⒌.Replace the filter cartridge When replacing the filter cartridge, blow it with compressed air first, and then check whether there are holes. If the hole is repaired, it should be replaced. If there is dust on the filter element, please rinse it with water and replace it.

Dust filter bags are an important filter material used in industrial and environmental fields. They have performance characteristics such as high filtration efficiency, long service life, and easy operation.     The first is filtration efficiency. The main function of the dust filter bag is to achieve the purpose of dust removal by capturing and filtering particles and solid particles in the air. The filtration efficiency of dust removal filter bags is one of the important indicators to measure its dust removal effect. Good filtration efficiency ensures that the filter bag can effectively remove particles in the air and keep the environment clean. The filtration efficiency of dust filter bags is usually determined by the pore size of the filter material. The smaller the pore size, the better the filtration effect. Dust removal filter bags are usually made of filter materials, such as polyester fiber, acrylic fiber, amdine fiber, etc. These materials can effectively filter tiny particles and improve the filtration efficiency of the filter bag. Second is the service life. The service life refers to the time that the dust removal filter bag can work normally. Dust filter bags have a long service life due to their good wear resistance, high temperature resistance and chemical resistance. Particulate matter in industrial environments often has a certain hardness and can easily cause wear to filter bags. However, dust removal filter bags have high wear resistance and can effectively resist wear and extend service life. In addition, industrial production is often accompanied by high temperatures and the presence of chemical substances, and dust filter bags have good high temperature resistance and chemical resistance, can adapt to different industrial environments, and provide a long service life. Again it is easy to operate. Dust removal filter bags need to be replaced or cleaned regularly during use, so easy operation is very important to improve work efficiency. Dust filter bags usually adopt a detachable design, which is convenient for users to disassemble and replace. In addition, dust filter bags are lightweight and easy to carry and install. When cleaning dust filter bags, water washing or gas backflushing is generally used, which is easy to operate and does not require additional equipment and tools.   In addition to the performance characteristics mentioned above, dust filter bags also have some other features. First of all, the dust removal filter bag has good filtration stability and can maintain a relatively stable filtration effect during long-term use. Secondly, the dust filter bag has low resistance and will not cause excessive obstruction to the air flow of the system. Dust removal filter bags have a high dust collection capacity and can effectively collect and store particulate matter to reduce environmental pollution. To sum up, dust removal filter bags have performance characteristics such as high filtration efficiency, long service life, and easy operation. These characteristics make the general contract operation and maintenance of dust collectors widely used in industrial and environmental fields, and play an important role in dust removal.

The cartridge dust collector is a new type of dust collector produced on the basis of the bag dust collector. It uses a new type of filter cartridge as the filter material, which makes it have high efficiency, low resistance, simple maintenance and management, small size, and filtration per unit volume. It has the advantages of large area, compact structure, easy replacement of filter cartridges, and high performance.     Surface of the filter cartridge-type baghouse dust far more efficient than the old filter, greatly reducing the emissions of harmful substances, air purification index reached the world advanced level, completely changed the old dust is mainly the backwardness. Filter cartridge filter without wear and tear, the body which has no moving parts, long-term use is not required to repair (even removable cartridge is also very convenient) to avoid the old-fashioned dust constantly changing media troubles, province money saving time nor secondary pollution. Cartridge filter its size, weight is far less than the old filter with the specifications, save construction space and civil load, saving significant infrastructure investment. Small resistance, a small amount of compressed air consumption, no maintenance workload. Electromagnetic pulse valve dust than saving all kinds of old-fashioned, more than 30% owned section.

HEADING FILTER bag dust removal equipment is a high-tech environmental protection enterprise specializing in industrial dust removal and waste gas treatment. It mainly includes Wenjinli wet dust collectors, cartridge dust collectors, bag dust collectors, etc.   Things to note when installing filter bags During the production process of dust collector bags, the weak parts of the bags must be thickened; During the installation process of the bag, adjust and replace the bag whose distance is too small or the keel is bent; The bag and the keel must fit properly, and the lengths should be consistent; Keels should be strictly inspected during use, and damaged keels are strictly prohibited from use; The seal between the bag and the porous plate should be checked to ensure that it does not leak; The venturi tube and pulse tube are correctly aligned. During operation, it is necessary to prevent factors such as too high filtration speed, too short bag cleaning cycle, and too high pressure of compressed air injection; When setting the pulse cleaning cycle of the dust collector, it is best to ensure that the dust collector works under stable pressure and the set pulse cleaning cycle time is the longest. The pulse cleaning time should be set to ensure that the initial dust does not fall off. The cleaning time is the shortest. If the initial dust layer is insufficient, the cleaning cycle can be extended to compensate. If pressure difference control is used, the stability of the inlet and outlet pressure settings of the dust collector can be improved.     Correct installation of dust bag can not only avoid damage to the dust bag, but also extend the service life of the dust bag.

Under normal circumstances, the material of the sutures of the dust filter bag should be the same as the material of the filter material. Under special circumstances, when sutures made of materials different from the filter material need to be used, the strength, heat resistance and chemical resistance of the sutures should be better than sutures made of the same material as the filter material. Number of rows of filter bag stitches: The longitudinal seams on the filter bag body must be strong, straight, and must not be less than 3. The bottom and mouth of the bag can be sewn with single or double needles according to different requirements. The needle density of the filter bag's stitching is related to the material of the filter bag. It ensures the tightness and strength of the stitching without leaking dust, and does not damage the strength of the filter cloth itself. The needle density of chemical fiber filter cloth filter bags is within 10cm (255) needles: the needle density of glass fiber filter cloth filter bags cannot be too large. The stitching width of the filter bag is related to the material of the filter material, generally 9~12cm. The distance between the outermost sewing needle and the edge of the filter cloth: 2~3mm for acupuncture drill and 5~8mm for glass fiber filter material. After the filter bag is sewn: Inspections and repairs should be carried out according to design requirements to eliminate creases, oil stains and grease on the surface. For filter bags sewn with film-coated filter cloth, in addition to strict requirements on the needle size, control of needle density and operating procedures, special materials must be used to repair all pinholes. Filter bag sewing inspection: Filter bag manufacturers should comply with national standards, industry standards, and enterprise standards. The factory quality supervision department selects items and the proportion of random inspections based on batches. Generally, the batch inspection ratio of filter bags is 5% to 20%. For filter bags with higher requirements, the batch inspection ratio should be more than 15%. Ex-factory products should be strictly inspected according to the ordering contract requirements for the filter cloth, sutures and various accessories of the filter bag. If problems are found, they should be rectified before leaving the factory. For dust removal filter bags that are resistant to temperature, acid and alkali corrosion and anti-static, special inspection is required.

January 18, 2024, today is China’s traditional festival, Laba Festival. HEADING wishes our customers at home and abroad to enjoy fine wines, delicious food, and a taste of all kinds of life!  

There are many factors to consider when determining dust bag size. The length of the bag dust collector depends on the flue gas treatment capacity, the filtration speed and the diameter of the dust bag. Increasing the length of the dust bag can reduce the quantity, thereby reducing the floor space, reducing the solenoid valve, pulse valve, blow pipe and other components of the dust cleaning system, saving investment, and shortening the dust cleaning cycle.     The factors that affect the diameter of the bag dust collector are as follows. The diameter of the dust bag of the dust collector is related to the energy of the dust cleaning pulse and the arrangement of the pulse valve. The diameter of common pulse industrial dust collectors is generally between 120mm and 152mm. The diameter of the dust bag of the dust collector is related to the size of the dust collector. For example, on a ground of about 7.5m2, using a filter bag with a diameter of 152mm and a length of 3m, the filtration area is about 163m2. If a filter bag with a diameter of 305mm is used instead, it will need to be 4.3m long to obtain the same filtration on the same area of ground. area. The diameter of the dust bag of the dust collector is related to the width of the filter material. Various filter materials have their own size and width. In order to maximize utilization, the diameter of the dust bag of the dust collector is determined by the width of the filter material. For example, a fabric with a width of about 990mm can be made into two dust bags with a diameter of 152mm, leaving the necessary seams.     The factors that affect the length of industrial dust collector dust bag are. The number of dust bags in the dust collector is reduced, and the equipment occupies a small area. When the processing air volume, filtration wind speed and bag diameter are the same, increasing the length of the dust bag will increase the filtration area of a single dust bag, thereby reducing the number of dust bags and reducing the floor space. If the number of dust bags in the dust collector is reduced, the solenoid valve, pulse valve, blow pipe and other components of the dust cleaning system will also be reduced, saving investment and shortening the cleaning cycle of the dust collector. If the dust bag length of the dust collector is too long, the manufacturing cost will increase. The height of the industrial eliminator box needs to be increased, and upward extension will increase the strength of the components, so the equipment manufacturing cost will increase. The dust cleaning effect is poor. When the industrial dust collector is cleaned online, the longer the dust bag, the greater the possibility that the dust blown out of the dust bag will be re-adsorbed into the bag. If the dust is cleaned offline, the longer the bag, the longer the pause time after cleaning will be. The ash compartments recover more slowly from filtration. The dust bag of the dust collector is easily damaged. The longer the dust bag is, the more powerful the blowing energy needs to be to ensure effective dust cleaning. The greater the blowing potential energy, the easier it is to damage the dust bag. If the dust bag is too long, it will be inconvenient to install, maintain and inspect. Judging from the development history of dust collectors, the common bag diameters of dust collectors are generally between 120mm and 152mm, while the length of dust collector bags has become longer and longer with the development of technology. From 3 in the 1950s. mm will increase to 8-10m next year.   In short, determining the specifications of the dust bag of the dust collector must not only meet the requirements of the filtration air volume and equipment cleaning method, but also take into account the actual conditions of the site. Only by comprehensive consideration can a reasonable design be achieved.  

What is air slide fabric Air slide Fabrics are air permeable fabrics used in air-activated conveyors or bin/silo aerators for the conveyance of dry bulk powders. It is also be called an air slide belt, conveyor belt, canvas cloth. Our Air slide Fabric has great performances of tensile strength, air permeability, service life, and heat-resistance. How air slide fabric works Fix the air slide belt between material (above) and air-flow box(below), airflow cross the material and make the powder or fluidized under gas pressure, to achieve the purpose of conveying.   Application of air slide fabric Air slide fabric for cement industry. It can be used in cement bulk cement trucks, boats. Air slide fabric for mining . It can be used for the conveying of alumina, lime, fly ash, phosphate in mining. Air slide fabric for chemical industry. It can be used for the conveying of soda. Air slide fabric for power plant . It can be used for the conveying of fly ash, and desulfurization in the chemical industry. Air slide fabric for the food industry . It can be used for the conveying of flour in the food industry. Then we will use the food-grade fabric.

All porous materials that can allow the fluid in the filter slurry to pass through and the solid particles contained therein to be trapped for the purpose of solid-liquid separation are collectively called filter media. It is a key component of the filter. It determines the separation accuracy and efficiency of the filter operation, and also directly affects the production intensity and power consumption of the filter.     There are many types of filter media used in industry. Polypropylene (PP) is for food, flour, sugar, fertilizer, electroplating, pesticides and other industries. Acrylic applies to detergents, waste incineration, asphalt, spray dryer, coal mill and power plant (FGD) part of the industry. Polyester (PE). It is can be used for mining, lime, cement, iron and steel industry, alumina delivery, electrolytic aluminum, non-ferrous metal production, wood processing, food processing and pharmaceutical industries. Polyphenylen sulfide (PPS) is applicable to the conditions of low-oxidation gas fired boilers, waste incineration, metal smelting, chemical industry. Polyimide (P84) is for corrosive gases, such as chemical, metal smelting, waste incineration, cement kilns and coal-fired boiler. Polytetrafluoroethene (PTFE) is suitable for high-corrosive gases and high temperatures, such as chemicals, coal-fired boilers, waste incineration and non-ferrous industrial production. Fiberglass. widely used in various industrial furnace high temperature exhaust gas filter such as chemical, steel, metallurgy, carbon black, power generation, cement, and so on. It is suitable for all kinds of dust and ash pulse bag agent hinger recoil velocity ash and the like.

In recent years, dust removal filter cartridges have become more and more common in industrial enterprises due to their small size, high efficiency, low investment, and easy maintenance. The following is the operation content of daily maintenance of dust removal filter cartridge.     The filter element is a precision element , but when the liquid contains more solid particles , separation measures should be taken to remove most of the solid particles , in order to avoid premature clogging of the filter was not working properly . Filter non- pressure parts , only to withstand pressure . The filter in normal operation , a certain amount of separation (such as solid impurities , etc. ) are separated out , thus periodically discharged , such as long-term discharge , the filter will lose the filtering effect . The dust removal filter cartridge is a star-shaped filter cartridge made of relatively long and stiff filter materials folded into pleats and bonded end to end. This equipment is environmentally friendly equipment. It can complete many tasks and help people purify the air.

Filtration refers to the separation of impurities, suspended solids, microorganisms and other harmful substances in sewage from the water through certain methods or means to achieve the purpose of purifying water quality. Introducing the characteristics of one of the filtration types - sewage filter Effectively remove suspended solids and maintain stable filtration accuracy. The filter element is a special stainless steel filter. No media filter, no need to replenish the filter regularly. When cleaning the filter, the water flow is continuous and the water consumption is low. The cleaning time and cleaning pressure can be set according to the water quality, and cleaning can be started manually. Compact structure and space saving Simple operation and maintenance. With the acceleration of urbanization, urban sewage treatment has become an important environmental issue. Filtration technology in sewage treatment is one of the important links.

The 26th Arab International Cement Conference & Exhibition 2024 Exhibition Contact 1: Selina, WhatsApp: +8615502127386; Exhibition Contact 2: Whitney, WhatsApp: +8615058630567. Our booth number: C8; Location: 1113 Corniche E1 Nil, Cairo, Egypt Exhibition time: January 15-17, 2024   We HEADING FILTER participated in the 26th Arab International Cement Conference & Exhibition in 2024. This exhibition is the second largest professional cement industry exhibition in the world and the largest professional cement industry exhibition in the Middle East.    

Air filter “filtration efficiency” is the amount of dust being captured with the original dust content ratio. Air filter filtration efficiency is the amount of dust being captured with the original dust content ratio: = Filter efficiency filter traps dust quantity / = 1 – upstream of the dust content of air downstream of the amount of dust / air upstream of the amount of dust .   Efficiency meaning seems simple, but it’s meaning and value because of the different test methods and different. The factors that determine the filtration efficiency of dust “quantity” means varied, since the calculation and measured filter efficiency values are also varied. In practice, there is the total weight of dust and the number of dust particles; Sometimes the amount of dust that is typical of the particle size; Sometimes the amount of dust of all particle sizes; Specific methods (colorimetry) and (fluorescence method) can also be used to indirectly reflect the concentration of light; There is a certain transient quantity, and the weighted average dust amount must be used to check the efficiency change value of the entire process. Only the same filter using different methods to test the efficiency of the measured value will be different. The countries, the manufacturers test method used, the filtration efficiency will be impossible.

HEADING wishes new and old customers in the environmental protection industry good business and financial success in 2024.

Dust filter Cartridge Features Greatly increase the effective filtration area; To ensure a smooth and low pressure, improve circulation wind; Cartridge element compact, easy to install; Especially for large dust concentration industry. The HEADING company's dust collector cartridges are high quality dust filter cartridges capable of removing contaminants such as sand, blasting media, dry powder, cement and more from the air. Dust collector cartridges are commonly used in industrial processes like grinding, sanding, chemical processing, printing, etc.

There are many types of filter cloths for filter presses, mainly classified according to different materials and structures. The following are some common types of filter cloth for filter presses:   Polyester filter cloth: Polyester filter cloth is made of polyester fiber, which has strong acid and alkali resistance, excellent tensile strength and wear resistance. Suitable for general filtration conditions and widely used in chemical, food, pharmaceutical and other industries. Nylon filter cloth: Nylon filter cloth is made of nylon fiber and has excellent heat resistance and wear resistance. It is suitable for filtration operations under high temperature and high viscosity conditions. Commonly used in petrochemical, fine chemical, papermaking and other industries. Polypropylene filter cloth: Polypropylene filter cloth has good acid and alkali resistance and temperature resistance, and is suitable for filtration operations in acidic and alkaline media and low temperature conditions. Commonly used in chemical, mining, metallurgical and other industries. Polyester filter cloth: Polyester filter cloth is made of polyester fiber, which has the advantages of acid and alkali resistance, temperature resistance and wear resistance, and has good filtration effect under general filtration conditions. Commonly used in chemical, food, environmental protection and other industries.     In addition to the above common types of filter cloth, there are also filter cloths made of special materials, such as wear-resistant polytetrafluoroethylene filter cloth, high-temperature-resistant glass fiber filter cloth, etc. The appropriate type of filter cloth can be selected according to specific filtration requirements. When selecting filter cloth, factors such as process conditions, the nature and requirements of the filter medium, and filtration efficiency need to be considered to ensure good filtration of the filter cloth.

About filter press Filter by a number of filter plates and filter box laminated block filter chamber composition, using a pressure filter as the driving force of the machine. Filter it is an intermittent operation of the machine, is divided into four kinds of frame filter, Van filter, belt filter press and the vertical filter press. The scope of products is very wide, but the structure is relatively simple. The main frame is a plate with pinch and pull together, and dumping slag and cleaning cloth can be implemented fully automated operation, the filter is very beneficial to large-scale development, the outlook is better.   Application status of filter press With the rapid development of modern technology and the renewal of industry, the mining of mineral resources is becoming increasingly depleted, and we are already facing the situation of "poor, small and miscellaneous".   Therefore, people have worn finer ore, while “fine, mud, sticky “materials for solid-liquid separation, in order to improve the utilization of mineral resources.   Before this, in addition to the high demands for energy saving, business-to-solid-liquid separation technology and equipment has a higher and broader demands.   For social needs in petroleum, chemical, food, mineral processing, metallurgy, coal, chemical and other industries, boosting the application of solid-liquid separation technology and equipment, and the breadth and depth of applications continues to expand.

A liquid filter is a device used to filter liquids. It can filter out solid particles suspended in the liquid to make the liquid purer. Liquid filters are widely used in industrial, pharmaceutical, food, chemical and other fields and are one of the essential equipment in these industries. Liquid filters can be divided into the following types according to their structures and working principles:   Pipeline filter In-line filters are the most common liquid filters. They are usually installed in pipes and filter impurities out of the liquid as it passes through it. The filtration precision of in-line filters is usually at the micron level and can be used to filter many different liquids, including water, lubricating oil, fuel, etc. Rotary filter A rotary filter is a filter that filters impurities from liquid during rotation. They are usually used for viscous liquids such as coatings, resins, paints, etc. The filtration precision of the rotary filter can be as high as nanometer level, and can be used in high-demand filtration situations. Belt filter A belt filter is a type of filter that uses a flat filter belt to filter liquids. Filter belts are available in different accuracies and flow rates. Belt filters are usually used to filter large amounts of solid particle impurities, such as sludge, ash, etc.

Filtration is currently the most widely used method of sludge dewatering, mainly vacuum filtration and pressure filtration method. vacuum filtration press filtration method centrifugation Common sludge dehydration methods and dehydration effects The sludge produced during sewage treatment has a high moisture content, large volume and weight. Therefore, measures need to be taken to remove the moisture in the sludge, reduce the moisture content of the sludge, and reduce the weight of the sludge.

Polyester mesh is a mesh woven using textile machinery and different weaving methods. It is one of the main drying and filtering materials and is widely used in papermaking, sewage treatment, sugar refining, pharmaceuticals, ceramics, food, printing, coal washing and other industries.     The operating temperature of polyester mesh shall not exceed 150 degrees. The tension of single-layer forming mesh is controlled at 40-50N/cm, the tension of double-layer or above forming mesh is controlled at 60-70N/cm, and the tension of dry fabric is controlled at 15N-25N/CM.

HEADING is pleased to extend an invitation to people in the environmental protection industry to visit the Dubai exhibition CHINA (UAE) TRADE FAIR 2023 for three days from December 19 to December 21, 2023. I firmly believe this will go a long way in helping you understand the trading market. We look forward to seeing you at the show soon. Sincerely!      

Dust removal filter bag is an important component used in dust removal equipment. Its function is to capture and filter out particulate matter in the air to ensure the cleanliness of the working environment and compliance with external emission testing standards.   There are following measures on how to extend the life of filter bag accessories: The filter bag is clogged The dust bag is an important accessory. When clogged, the resistance increases and the reading on the differential pressure gauge increases. Blockage of the filter bag is the main cause of filter bag wear, perforation, and shedding.   Need to solve: emporarily strengthen dust cleaning to eliminate filter bag clogging; Replace some or all filter bags; Adjust installation and operating conditions.   The bag is damaged The installation method and structure of the bag dust collector bag and the shape and position of the filter bag determine that the filter bag is easily damaged and can therefore be inspected and repaired.   Bag aging Mainly due to the following reasons, the cause should be investigated, measures should be taken to eliminate and replace the filter bag. Common causes: Abnormal shrinkage due to high temperature curing; Reaction with acid, alkali or organic solvent vapor; Reaction with moisture.     The filter cloth should not be hung too loosely or too tightly. If it is too loose, it will easily accumulate dust, and if it is too tight, it will easily break. It is not advisable to mix old and new bags to avoid damage and affecting normal use.   Dust cleaning treatment of filter bags​ Put down the replaced filter bag, blow it clean with compressed air first, and then check whether there are any holes. becauseThe dust paste is charged, please rinse it with water and dry it before replacing it.

Cleaning bag filter having a kinetic energy, high cleaning efficiency. And small size, light weight, simple and compact structure, easy to install, easy maintenance (outside the filter type), widely used in building materials, metallurgy, mining, chemical, coal, non-metallic mineral ultrafine powder processing industry dusty gas purification system, is the ideal equipment for environmental dust.     When debugging a new baghouse, special attention should be paid to checking the following points: The rotation direction, speed, vibration and bearing temperature of the fan. The air volume, pressure and temperature of each test point are consistent with the design. If the installed filter bag is unpacked, lifted, or worn after use, the chimney emissions can be visually determined after it is put into operation. Pay attention to whether there is condensation in the chamber bag and whether the ash discharge system is smooth. In order to prevent clogging and corrosion, severe scaling will affect the production of the main engine. Adjust the cleaning cycle and cleaning time. This work is an important factor affecting the dust removal performance and operating conditions. Equipment commissioning will directly affect whether it can be put into normal operation, if handled improperly, the bag filter is likely to quickly lose their effectiveness, so do commissioning equipment must be careful and prudent.     In the daily operation of baghouse, due to certain changes in operating conditions or the occurrence of some failures, the normal operating status and performance of the equipment will be affected. It should be checked regularly and adjusted appropriately, with the purpose of extending the life of the filter bag, reducing power consumption, and recycling useful materials.     Things to note in the daily operation of baghouse: Equipment daily operation log; Fluid resistance; Precautions for safety and stopping work; Maintenance; The working conditions of control valves, pulse valves and timers should be checked frequently; Prevent condensation, fire and explosion, which will reduce collection efficiency;  

Filter bag is the critical part of the bag dust collector, therefore before we know the temperature limit of the bag dust collector, we need to know the material of filter bag.   The common high temperature resistance filter media is fiberglass needle punched felt, Nomex®(Aramid) needle punched felt, PPS needle punched felt and FMS needle punched felt and so on.   FMS needle felt can work normally in 260℃. PPS can work normally within 170-232℃. Nomex®(aramid) can work normally in the continuous 204℃，and can understand 250℃ in short time. Fiberglass needle felt can work normally within 180℃, and the filtration velocity

Industrial dust collector is a kind of air pollution control equipment used in factories, workshops, warehouses and other industrial or commercial environments to meet the environmental and workplace safety requirements, as well as the health needs of workers, and meet the national ambient air pollution emission standards.   Baghouses come in a variety of designs and are the most commonly used system due to their 99% efficiency.   The current mainstream dust removal systems include vibration dust collectors, pulse jet dust collectors, cyclone dust collectors, electrostatic precipitators, and cartridge collectors.   If you want to know more about industrial dust collector equipment, please contact us anytime and anywhere, our professional team is always at your service.    

Baghouse dust bag is inside one of the most important parts, breakage occurs when dust bag, bag filter will stop working.   What baghouse dust bag appears damaged the reason that? The dust bag itself has design defects or unreasonable process parameters; The defect type selection of raw materials needs to be inspected and put into use after passing the inspection; The manufacturer does not control the quality of dust filter bags and does not have dust bag specifications. Although there are regulatory requirements, they do not understand them; there are clear regulations, but their implementation is not strict; Lack of after-sales customer visits and customer usage guidance; Users found that there was a lack of systematic and in-depth research on the dust bag problem, and standardized operations were not strictly followed; The monitoring system is not perfect, and there are no clear monitoring items and limits for dust removal bags, resulting in bag quality problems that need to be replaced in time.

Dust removal bags pay special attention to measures to prevent fires, explosions and fire accidents. When dealing with gas or hot combustion gas, incomplete combustion dust, sparks and explosive combustion gas often enter the system. Some dust is self-igniting or charged, and most filter materials are flammable and will carry static friction. Very easy to generate. Under such operating conditions, there is a risk of burns and explosions, and the consequences of such accidents are often very serious.   You should consider taking good fire and explosion protection measures, such as: ⑴ Set up a combustion chamber or spark trap in front of the dust collector to trap incomplete combustion gases or incomplete combustion dust and sparks. ⑵ Take measures to prevent static electricity by grounding all departments with conductive materials, or add conductive fibers when manufacturing filters. ⑶Prevent dust accumulation or bedding, and avoid dust explosion and spontaneous combustion. ⑷ Before entering the bag room or pipeline inspection or inspection, personnel must be ventilated to prevent CO poisoning.   HEADING FILTER® is committed to providing first-class filtration solutions. After years of development, we have established close business relationships with customers in more than 50 countries and regions around the world.

The dust filter bag is a device used for industrial particulate matter filtration and plays an important role in the field of environmental protection. HEADING FILTER dust filter bag manufacturers will introduce the environmental performance of dust filter bags.     First, the filter materials used in dust removal filter bags are mostly special fiber materials that are resistant to high temperature, acid and alkali. These types of materials have good corrosion resistance and can operate stably for a long time under harsh working conditions. This ensures that the dust removal filter bag will not produce harmful substances during use and will not cause pollution to the environment. Second, dust filter bags capture and filter particulate matter from industrial emissions. Traditional dust removal methods such as wet dust removal require the use of water, while dust removal filter bags can complete the dust removal task without using water, avoiding waste of water resources and pollution of water quality. At the same time, the dust removal filter bag can capture tiny particles on the surface of the filter material or inside the filter material, effectively preventing the spread of particles and reducing the impact on the surrounding environment.   Third, the dust removal filter bag has good filtration accuracy. According to different working conditions and requirements, filter bags with different filtration precisions can be selected to achieve better dust removal effects. The filtration precision of dust filter bags is usually between 1 micron and 50 microns, which can effectively filter out fine particles and ensure the fine treatment of industrial emissions. Fourth, dust filter bags have a long service life and low maintenance costs. It can withstand high temperature and high pressure working conditions and is not easy to deform or wear, so it can operate stably for a long time. In addition, the maintenance cost of dust removal filter bags is relatively low. Generally, they only need to be cleaned and replaced regularly. No additional consumables and energy are required, which reduces the burden on the environment. Fifth, dust removal filter bags can also be recycled. During the dust removal process of dust collector designers and manufacturers, the captured particles can be separated and recycled through special dust removal devices. These particulate matter can be used for the preparation of renewable materials, energy recovery, etc., reducing the consumption of resources and reducing the environmental load.     Problems with dust filter bags. First of all, the filter bag will suffer from fatigue fracture or hole expansion after long-term use, which will lead to a decrease in dust removal effect. In addition, filter bags tend to accumulate dust during use and need to be cleaned regularly, which places certain requirements on personnel's labor intensity and work efficiency. At the same time, in order to ensure the performance of the dust removal filter bag, the filter bag needs to be replaced regularly, which will generate a certain amount of waste and waste of resources.

Dust collector general contract operation and maintenance refers to the inclusion of dust collector equipment and operation and maintenance services, and the supplier is responsible for all aspects of equipment installation, debugging, repair and maintenance. Compared with the traditional method of self-maintenance after purchasing the equipment, dust collector turnkey operation and maintenance has the following advantages:     1. Professional technical support The general contract operation and maintenance of the dust collector is provided with technical support by the supplier. The supplier has rich experience and professional technology. It can customize the operation and maintenance plan according to the specific needs of the customer and provide various technical support to ensure the normal operation of the equipment. 2. The equipment is always in good condition Suppliers will regularly check the operating status of the equipment, discover and solve problems in a timely manner, and keep the equipment running. Regular maintenance and repair by dust removal filter bag manufacturers can prevent equipment failures and ensure stable performance of the equipment. 3. Reduce maintenance and downtime Suppliers will perform maintenance in advance based on the equipment's usage status and maintenance records to avoid equipment downtime due to failure and improve equipment operating time and production efficiency. When equipment fails, suppliers can respond quickly and resolve the issue quickly, reducing downtime. 4. Reduce maintenance costs The general contract operation and maintenance of the dust collector can fix the operation and maintenance costs of the equipment. There is no need to purchase the parts required to repair the equipment, which saves maintenance costs. At the same time, dust collector design and manufacturing manufacturers can reduce the energy consumption of the equipment and further reduce maintenance costs because the equipment is always in good condition. 5. Improve work efficiency Suppliers will perform regular maintenance and repairs on equipment to ensure the normal operation of the equipment, reduce the failure rate of the equipment, and improve the reliability and stability of the equipment. This can avoid equipment failure affecting work plans and improve work efficiency. 6. Liberate human resources The traditional self-maintenance method requires the company to invest a lot of human resources to maintain the equipment, but the dust collector general contract operation and maintenance supplier will dispatch professional technicians to perform equipment maintenance and upkeep, which reduces the company's burden of maintaining the equipment and can better Make optimal use of human resources. 7. Save time and energy The dust collector general contract operation and maintenance can hand over the maintenance and upkeep of the equipment to the supplier. The company does not need to spend time and energy managing the operation and maintenance of the equipment. It can devote more energy to the core business and improve the company's core competition. force. 8. Long-term partnership Dust collector general contract operation and maintenance is a long-term cooperation method, and a stable cooperative relationship is established between suppliers and customers. Suppliers understand customers' specific needs and business characteristics through long-term cooperation, and can provide more personalized operation and maintenance solutions to meet customer needs. In short, dust collector general contract operation and maintenance has the advantages of professional technical support, equipment is always in good condition, maintenance costs are reduced, work efficiency is improved, human resources are liberated, time and energy are saved, and long-term partnerships are established. It provides enterprises with more stable and cost-controllable equipment management and maintenance services.    

Dust removal filter bag is an important dust removal equipment and is widely used in various industries. The service life and effect of dust removal filter bags are directly related to the operational stability and efficiency of the equipment. Dust removal filter bags need to be used in a variety of different working environments. Therefore, the filter bags need to have strong high temperature resistance and corrosion resistance.   Before using the dust removal filter bag, we need to understand the temperature range that the dust removal filter bag can withstand, so as to better use the filter bag and ensure its working effect and lifespan. HEADING FILTER dust removal accessories manufacturers will introduce in detail the temperature range that dust removal filter bags can withstand.   Common materials for dust filter bags include wire mesh, non-woven fabrics, needle felt, etc. These materials have different temperature resistance ranges, so the temperature resistance ranges of dust filter bags are also different. Common wire mesh materials can usually withstand temperatures below 250°C, non-woven materials can withstand temperatures below 120°C, and needle felt materials can withstand temperatures below 300°C. In addition to the temperature resistance of the material itself, the structure and process of the dust filter bag will also affect its temperature resistance range. The structure of dust removal filter bags is usually divided into cylinder type, sleeve type and type structure. The temperature resistance range of cartridge filter bags is usually below 250°C, while the temperature resistance range of sleeve filter bags and type filter bags is relatively higher and can withstand high temperatures below 300°C. If the filter bag needs to be used at higher temperatures, it can adopt a double-layer or multi-layer structure, or use high-temperature materials such as metal fibers.   The process of the dust filter bag will also affect its temperature resistance range. During the production process of filter bags, different processing technologies, such as heat treatment, coating, etc., can be used to improve the temperature resistance of the filter bags. At the same time, the seams of the filter bag also require special treatment to ensure that they will not melt or deform under high temperatures. Generally speaking, the temperature resistance range of dust filter bags is around 250°C to 300°C, but there are also some high-temperature products that can withstand higher temperatures. When using dust removal filter bags, it is necessary to select appropriate materials and structures according to the specific working environment, and pay attention to the service life and maintenance of the filter bags to ensure the normal operation and long-term stability of the equipment.

Dust filter bag is a filter material used to remove dust and harmful particles in the air. It is widely used in industrial equipment and environmental protection facilities in various industries.   The use of dust filter bags can effectively reduce environmental pollution and human health hazards, and improve production efficiency and equipment service life.   1. Prerequisites for the use of dust removal filter bags The use of dust filter bags needs to meet the following prerequisites: ① Confirm the characteristics and concentration of dust to select the appropriate filter bag material and specifications. ② Confirm the speed and temperature of the air flow to determine the temperature and pressure resistance of the filter bag. ③ Confirm the operating environment and process requirements of the equipment to select the appropriate dust removal method and equipment type. ④ Confirm the convenience and safety of maintenance and replacement of filter bags to ensure the normal operation and maintenance of the equipment. 2. Installation and debugging of dust filter bags The installation of filter bags should be carried out in accordance with the equipment instruction manual and technical standards to ensure the sealing and stability of each connection part. If the pulse cleaning method is used, the cleaning cycle and cleaning time should be set according to the actual situation to ensure the cleanliness and service life of the filter bag. The debugging of the filter bag should be carried out according to the steps. First, dry running and pressure testing should be performed to confirm that the equipment and filter bags are in normal condition before proceeding with production operations. During the debugging process, attention needs to be paid to the adjustment of key parameters such as air flow uniformity and filter bag resistance to achieve dust removal effects and energy consumption control.   3. Maintenance and maintenance of dust filter bags Maintenance of filter bags should be carried out regularly, including cleaning, replacement and maintenance. Appropriate cleaning agents and methods should be selected when cleaning to avoid damage to the filter bag and reduction of its service life. When replacing, you should choose a filter bag with the same specifications and materials as the original one to avoid affecting the normal use of the equipment due to improper specifications or materials. During maintenance, attention should be paid to checking the damage and aging of cracks, hooks, joints, brackets and other parts of the filter bag, and processing or replacing them in a timely manner. When maintaining filter bags, attention should be paid to the cleanliness of the equipment and the hygiene of the operating environment. When maintaining and replacing filter bags, dust and debris inside the equipment should be removed, and the inner surface of the filter bag should be disinfected and sterilized. At the same time, the air around the equipment should be ensured to be fresh to avoid harm to the operating equipment and operators. 4. Troubleshooting and response to dust removal filter bags Clogging and rupture of filter bags are common failures, which may lead to dust leakage and equipment damage. When the filter bag is found to be clogged, problems with the air flow, dust cleaning system and filter bag itself should be checked to find out and solve the cause. When a filter bag is found to be ruptured, the damaged filter bag should be replaced in time and check whether other filter bags have the same problem. Incompatibility of the filter bag material will also lead to a decrease in dust removal effect and shorten the life of the filter bag. If problems with the filter bag material are found, the appropriate filter bag should be replaced in time or the filter bag material should be reselected. Problems with the dust removal system may also lead to failure and damage to the dust collection equipment. When it is found that the dust cleaning system needs repair or replacement, it should be dealt with in time.   The use of dust removal filter bags requires attention to the details and characteristics of each link to ensure the normal operation of the equipment and the dust removal effect. At the same time, regular inspection and maintenance should be carried out, and relevant data and information should be recorded to facilitate later optimization and adjustment. The use and management of dust removal filter bags requires the cooperation of professional engineers and technicians to jointly create an effective, safe and reliable dust removal system.

The good market prospects and wide range of uses of dust filter bags stem from their excellent quality and performance. 1. The thermal stability of PPS filter material is very excellent.   The short-term heat resistance and long-term continuous use thermal stability of dust removal filter bags are better than all current engineering plastics. 2. Resistant to chemical corrosion.   The chemical corrosion resistance of PPS is second only to the so-called "plastic" polytetrafluoroethylene (PTFE). Below 200°C, almost no solvent can dissolve PPS. 3. Physical and mechanical properties.   The melt viscosity of PPS resin is very low and has good fluidity. It is particularly easy to wet and contact with glass fiber, so it is easy to fill. The glass fiber or glass fiber-inorganic filler-reinforced injection-grade pellets prepared with it have strong stretch resistance. properties, impact resistance, bending resistance and ductility. 4. Dimensional stability.   PPS dust bag dust removal accessories have good creep resistance, low linear expansion coefficient and excellent dimensional stability. 5. Adhesion performance.   PPS has very high bonding strength to aluminum, stainless steel, glass, etc. The bonding strength to glass is even higher than the cohesion of glass. Because PPS has good bonding properties and corrosion resistance, it is very suitable for lining chemical equipment. In addition, the chemical structure of PPS itself makes it have good flame retardant properties and does not require the addition of flame retardants. PPS dust bag has very low dielectric constant, electrical inductance and dielectric loss factor, and has excellent insulation and dielectric properties in high temperature, high humidity and other environments.

What is a baghouse? Bag dust collector is a dry dust removal device, which is suitable for collecting fine, dry, non-fibrous dust.   The relationship between filter bags and baghouse. The filter bag is made of textile filter cloth or non-textile felt. The filtering effect of the fiber fabric is used to filter the dust-containing gas. When the dust-containing gas enters the bag dust collector, the dust with large particles and heavy specific gravity settles due to the action of gravity. When the gas containing fine dust passes through the filter material, the dust is blocked and the gas is purified. Generally, the dust removal efficiency of new filter materials is not high enough. After the filter material is used for a period of time, due to effects such as sieving, collision, retention, diffusion, and static electricity, a layer of dust accumulates on the surface of the filter bag. This layer of dust is called the primary layer. During the subsequent movement, the primary layer becomes The main filter layer of the filter material relies on the function of the primary layer. Filter materials with larger meshes can also achieve higher filtration efficiency. As dust accumulates on the surface of the filter material, the efficiency and resistance of the dust collector increase accordingly. When the pressure difference on both sides of the filter material is large, some small dust particles that have been attached to the filter material will be squeezed out. Reduce dust collector efficiency. Besides, high resistance power will significantly decrease air volume of the dust collecting system. Therefore, after the dust collector resistance reaching a certain volume, the dust should be cleaned in time. When cleaning, do not damage the first layer to avoid a decrease in efficiency.   Bag dust collector structure. The structure of the bag dust collector is mainly composed of the upper box, the middle box, the lower box (ash hopper), the ash cleaning system and the ash discharge mechanism. In addition to the correct selection of filter bag materials, the dust cleaning system plays a decisive role in the performance of the bag dust collector. For this reason, the dust cleaning method is one of the characteristics that distinguishes the bag dust collector, and it is also an important part of the operation of the bag dust collector.

Dust collector design and manufacturing manufacturers talk about how to deal with high temperature problems.   The dust filter bag in the dust collector is an important part of the dust collector. If you want the dust removal filter bag to have good dust removal effect, the filter bag is the key.     The maintenance cost of dust collector bags accounts for a large proportion of the dust collector maintenance costs. The filter bag is the key factor that determines the performance of the dust collector. As for how to maintain the filter bag during the use of the dust collector, it is necessary to consider the main reasons for damage to the filter bag. Analyzing the reasons, the proportion of high-temperature damage is relatively high, so how to avoid high-temperature damage to the filter bag during the use of the dust collector is particularly important.     1. High-temperature coating: Anti-corrosion coating is essential for bag dust collectors used for high-temperature flue gas filtration. Poor coating not only affects the appearance, but also accelerates corrosion and reduces the service life of the bag dust collector. 2. Insulation method: No matter how the air flow is arranged in the ash hopper of the dust collector, air flow obstruction will inevitably occur, so the equipment needs to be insulated. The insulation layer structure should meet the purpose of preventing condensation. 3. Choose high-temperature-resistant filter bags: There are many types of high-temperature-resistant filter bags that are widely used, such as Nomex, aramid, P84, glass fiber dust bags, PTFE dust bags, etc. Nomex dust filter bags can be used for high-temperature and dry gases. If the flue gas contains moisture or the flue gas is prone to condensation, it is necessary to use high-temperature resistant filter bags such as P84 that are difficult to hydrolyze. 4. Structure method: In order to prevent condensation of high-temperature flue gas during dust collector general contract operation and maintenance, the internal structure planning of the bag dust collector should first minimize the area of gas obstruction. The dust-laden air enters from the lower part of the box according to the settings of the dust collector, and the outlet is set at the upper part of the box, on the same side as the inlet. At this time, the air flow will stagnate in the lower area of the filter bag and the area opposite to the outlet. Since the box wall cools after dissipating heat, condensation will easily form. In order to reduce the heat dissipation from the wall, a special method is designed to install a reinforced structure on the inner side of the box. The environmentally friendly asbestos-free gasket and sealing materials used on the box should be selected to withstand the set temperature. 5. Filter bag mouth method: When using a pulse bag dust collector to process high-temperature flue gas, it is necessary to prevent partial cooling and condensation at the filter bag mouth. The temperature of the compressed air used for dust cleaning is low, and the temperature of the flue gas to be purified is high. When the compressed air is sprayed into the filter bag through the blow pipe, the compressed air is suddenly released, and the temperature around the bag mouth drops rapidly. Due to the difference in temperature and pressure, If the compressed air quality is poor and contains water and oil, the condensation will be more serious. The advantage of using N2 instead of compressed air is that N2 has good quality and can reduce the possibility of condensation; at the same time, the filter bag mouth guide tube is also helpful to prevent bag mouth condensation. 6. Solution to high temperature before the flue gas enters the dust collector: Since the flue gas temperature is as high as about 550°C, the existing general bag dust collector cannot handle it. Therefore, three cooling and prevention measures are adopted before the flue gas enters the bag dust collector. Method.

Bag dust collector is also called filter dust collector. Any equipment that uses bag-shaped filter elements made of fabric or non-woven fabric to capture solid particles in dust-containing gas can be called bag dust collector. The bag dust collector is generally composed of a box body, a filter bag, a filter bag frame, a dust cleaning mechanism, an ash hopper, a dust discharge valve and other components.       Under the traction of the fan power, the pulse bag dust collector forms a negative pressure environment inside the dust collector, the dust removal pipe and the dust removal cover mouth. The dust collector general contract operation and maintenance manufacturer causes the dust at the dust point to enter the dust collector under the action of the pressure difference, including After the dust gas enters the dust collector from the air inlet, the air flow speed slows down, and the coarse particles break away from the air flow and settle into the dust collection chamber. When the fine dust passes through the bag with the air flow, it is blocked on the outer surface of the bag, and the clean gas is discharged from the air outlet; When the dust layer on the surface of the bag is thick, the pulse controller issues a command to open the blow valve, and the compressed air in the air bag is sprayed out at high speed through the blow pipe. At the same time, the surrounding air, which is several times the amount of sprayed air, is induced to enter the bag and rapidly flows from the inside to the outside. Injection blows the dust on the outer surface of the bag down into the dust collection chamber, and is discharged from the ash hopper. The dust removal of the dust collector adopts pulse injection method, which not only achieves dust removal without damaging the filter bag, but also ensures the service life of the filter bag. The dust cleaning process is automatically controlled by a pulse controller, which can use pressure difference control or time control. Basic features of dust removal filter bags (1) The dust removal efficiency is high, generally above 99%, and the outlet flue gas concentration can reach below 50mg/m3, or even 10mg/m3 (2) The processing gas volume range is large and can handle high-concentration dust-containing gases; (3) The structure is relatively simple and easy to operate and maintain; (4) Under the same dust removal efficiency, its cost and operating costs are lower than those of electrostatic precipitators; (5) Insensitive to dust characteristics and not affected by dust specific resistance.

What are the causes of damage to dust removal filter bags?   1. The high-temperature bag is not installed properly: A. The installation process is confusing. The dust collector frame and dust bag are stored and placed in an arc shape, causing the dust bag or dust collector frame to be deformed due to extrusion molding; B. High temperature cloth bags are not vertical. This causes long-term friction between the dust bag and the long-term friction between the high-temperature bag and the wall panel, causing the dust bag to be damaged; C. The inclination of the boiler blowpipe, the standard air pressure of the gas generator furnace is too high or the frequency of the gas generator is too high, which may cause damage to the sealing ring or even separate the bag head and bag body;   2. The machinery and equipment of the dust filter bag manufacturer are not sophisticated: A. The production and processing process of the dust collector frame is not smooth. If rust, welding, burrs and exposed welding occur, the mechanical equipment of the dust bag will be accelerated. B. The deformation of the flower board cannot meet the requirement of 2/1000 flatness, and even the unevenness of the dust will cause the flatness of the dust collector frame to be lost, causing the dust bags at the bottom of the chassis to collide with each other. The ductility of the steel ring can also easily cause damage, causing the installation and sealing of high-temperature bags to be lost, and damaging the leakage of steam and dust bags; C. There is an error in the hole of the flower board. When the flower board also shows an error of 2-3mm, the high-temperature bag cannot be installed in time, which will cause the dust bag to be removed or the dust bag and flower board holes to fall, causing the bag dust removal device to operate.

Our booth number: 64; Theme: Industrial industry chain centered on cement technology and equipment; Location: Vietnam, Ho Chi Minh Convention and Exhibition Center; Time: November 22-23, 2023   Exhibition contact: Selina, WhatsApp: +86 15502127386     Exhibition introduction: The annual Vietnam Cement & Concrete Equipment Exhibition is the largest and most professional cement industry event in Vietnam. This exhibition will bring together an industrial chain centered on cement technology and equipment, as well as upstream and downstream industries such as mining, sand and concrete, etc., providing development opportunities for cement companies to extend the industrial chain. There will also be B2B conferences and summit technology forums during the same period, providing a professional platform for exhibitors to directly connect their exhibits with buyers, and display the latest development trends of corporate products in the same industry. In addition, a product introduction section has been added to allow Buyers from different regions can have a clearer understanding of exhibitors’ products and company development trends. At the same time, the organizer will also organize on-site inspection activities to inspect local representative cement plants, so as to gain a deeper understanding of the Vietnamese cement market and explore the development trends of industry products.

When designing a bag dust collector, factors such as floor space and filtering area must be considered, so the filter bags will be designed in a variety of ways. In asphalt mixing stations, bag dust collectors have some common filter bag forms, installation methods and precautions.   1. Straight round bag The straight round bag is our most common form of filter bag. Its main feature is that the hole in the flower plate is round, and the filter bag is effectively sealed by expanding spring sheets, strips and flower plates.     When installing straight round bags, you should pay attention to whether the flower plate is completely stuck in the groove of the filter bag strips, and whether the filter bag spring leaf can return to the round shape by itself. Sometimes the corrosion of the flower board will cause the filter bag to be unable to return to the round shape during installation. At this time, it is necessary to remove the rust from the flower board, or use a rubber hammer to tap the diagonal corners of the filter bag during installation to allow the spring leaf to fully expand and close to the flower board. The plate forms a seal. After the filter bag is installed, touch the inner ring of the bag mouth with your hand to check whether there are any bulges and whether the spring leaf can return to roundness.   2. Flat cloth bag Flat cloth bags are a broad concept, and there are many types in form. According to the form of the bag head, it can be divided into flat cloth bags with strips, flat cloth bags with felt strips, and flat cloth bags with double felt strips. According to the frame form, there are single frame, double frame, and three frame types of filter bags. These filter bags can be selected with or without bag bottoms.     When installing flat cloth bags, usually the bag with strips should also pay attention to the fit between the strip groove and the flower board, and pay attention not to squeeze the filter bag when installing the frame, otherwise the bag will fall off. If necessary, you can use a rubber rod to tap the two narrow corners against each other to fully support them.     Flat cloth bag For filter bags with felt strips, attention should be paid to pressing the felt strips against the flower board. At the same time, the coordination requirements between the frame and the filter bag are relatively high. The head of the frame needs to be able to support the head of the filter bag tightly so that it can be sealed with the flower board to prevent dust leakage.   Felt flat bag After all installation is completed, we recommend that all filter bags be straightened from the hopper to prevent cross-collision of the bags in the box.  

HEADING FILTER is committed to providing customers with integrated solutions, so on-site investigation and evaluation is an indispensable part of our pre-sales work. With a comprehensive understanding of the on-site conditions, we can provide customers with targeted services and accurate product selection.   Dust collector condition assessment There are two main points to look at when assessing the health of a dust collector: the location of the dust collector and the corrosion of the dust collector.   ❏ Check whether the dust collector is located indoors or outdoors. The outdoor dust collector mainly checks the box corrosion and rainwater erosion. The indoor dust collector mainly checks the impact of environmental dust on emissions (especially the atmospheric backflush type dust collector).     ❏ Check the corrosion of the dust collector, whether there is obvious corrosion and damage on the appearance, whether there are holes visible to the naked eye, etc.   FAQ analysis     ❏ For indoor atmospheric backflush type dust collectors, a thick layer of dust accumulates on the cover, indicating that the dust in the environment is serious and there is a risk of emission exceeding the standard; At the same time, the on-site environment is messy, and accessories, garbage, tools, etc. are piled up randomly. It can be seen that the on-site management is not standardized, and it is very easy to cause problems with the use of filter bags caused by poor management and operation.     ❏ The box has been corroded and broken, and damaged points will continue to expand. On the one hand, it will increase the air leakage rate and increase the fan load. On the other hand, it may cause the dust accumulated on the surface to be sucked into the air outlet flue. causing emissions to exceed standards.

The filter bag is the execution component of the bag dust collector. The entire dust removal system is a steel structure. Only the filter bag is made of non-woven fabric. The temperature and chemical composition of the flue gas entering the dust collector, as well as the collision and wear of the components in contact with the filter bag have a great impact on the dust removal system. They all have fatal effects.   1,Particulate matter emissions exceed standards   Factors causing excessive emissions generally include the following aspects: the filter bag mouth and flower board are not installed in place, the filter bag is damaged, the valve is not closed tightly, the equipment is open and welded, excessive dust cleaning, etc.   Common factors that cause filter bag damage include: mechanical damage (wear), aerodynamic damage (scouring), chemical damage (acid corrosion, alkaline corrosion, oxidation, hydrolysis, etc.), thermal damage (extremely high temperature, low temperature condensation), etc. .   2,High operating resistance of dust collector Factors causing high operating resistance generally include the following aspects: condensation on the filter bag, failure of some pulse valves or lift valves, too high material level in the ash hopper, unopened valves, excessive filtration wind speed, too long cleaning cycle, etc. The ash injection pressure is too low, the filter bag is not breathable, etc.     It can be seen that the filter bag needs to be protected during operation. Only when all components of the dust removal system are working properly, the filter bag can fully exert its ability to efficiently capture dust, thereby achieving ultra-low emissions of particulate matter and protecting the environment. Contribute to the blue sky of the motherland.  

Dust filter bag is a device used for filtration and removal of industrial particulate matter. It is widely used in waste treatment, petrochemical, metallurgy, electric power and other industries. Improving the production efficiency of dust filter bags is very important for manufacturers, which can increase production capacity, reduce costs, improve product quality, and enhance competitiveness. Below are some methods you can use to increase the efficiency of dust filter bag production.   First, optimize the production process. Through reasonable planning and layout, all processes are connected in an orderly manner based on the principle of minimizing traffic and waiting time. The dust collector is designed and manufactured to set up reasonable workstations and work areas in the production workshop to improve work efficiency. In addition, automated equipment and robots can also be used to replace some manual operations to improve production efficiency and product quality. Second, supply chain management should be strengthened. Establish good cooperative relationships with suppliers to ensure timely supply and stable quality of raw materials. Adopt reasonable inventory management methods to avoid backlog and waste of raw materials and finished products. Optimize the logistics distribution system, improve product transportation efficiency, and save time and costs. Third, technological research and development and innovation should be strengthened. Continuously introduce and master advanced production technology and equipment, and continuously improve product design and process flow. Carry out technological innovation activities and develop effective and energy-saving new dust removal filter bags to improve product performance and reduce production costs. Strengthen cooperation with scientific research institutions, research institutions, and customers, share technology and information, and jointly promote the development of the industry. Fourth, personnel training and management should be strengthened. Establish a sound employee training system to improve employees' technical and management levels and cultivate a high-quality workforce. Strengthen incentives and rewards for employees and enhance their sense of belonging and responsibility. Pay attention to the health and safety of employees, provide safe working environments and conditions, and reduce the risk of accidents. Fifth, a quality management system and quality control mechanism should be established. Strengthen the quality inspection of raw materials, semi-finished products and finished products to ensure the qualification rate and stability of products. Strengthen communication and feedback with customers, handle and solve quality problems in a timely manner, and improve customer satisfaction. Sixth, marketing and brand building should be strengthened. Understand market demand and competition, formulate reasonable marketing strategies, and expand new sales channels. Strengthen brand publicity and promotion to increase brand awareness and reputation. Through interaction and cooperation with customers, we understand customer needs, continuously improve products and services, and enhance competitiveness. In short, improving the production efficiency of dust filter bag manufacturers requires the comprehensive use of multiple means, including process optimization, supply chain management, technology research and development, personnel training, quality management, marketing, etc. Through continuous improvement and innovation, manufacturers can improve production efficiency, reduce costs, improve product quality, and enhance competitiveness.

Bag Filter Expo 2023 Nov 29-Dec 1 2023, Shanghai  China,booth No.TBD. Heading Filter invites you to visit Bag Filter Expo 2023   Zhejiang Heading Environmental Protection Technology Co., Ltd. is a technology enterprise specializing in the research and development, production, sales and technical services of environmentally friendly products such as flue gas treatment and sewage treatment.

Hong Kong International Eco Expo Address: Hong Kong Convention and Exhibition Center; Time: 10/26-10/29; Booth number: 6-E06; Heading Filter is waiting for you on site.        

There are many types of liquid filter bags, and different types of filter bags can be selected according to different filtration needs and application scenarios. The following are several common types of liquid filter bags and their characteristics:     Polyester filter bag: high temperature resistance, acid and alkali resistance, high strength, wide application range.   Polypropylene filter bag: acid and alkali resistant, good air permeability, suitable for filtering most acidic and neutral liquids.   Nylon filter bag: high temperature resistance, high strength, suitable for filtration of high temperature, high concentration acidic and alkaline liquids.   Cotton fiber filter bag: good air permeability and strong adsorption, suitable for occasions with high filtration accuracy requirements.

1. PTFE. PTFE filter bags are made of polytetrafluoroethylene filter material. Polytetrafluoroethylene is a neutral polymer compound with a unique molecular structure, that is, a completely symmetrical structure. The special structure makes it have good thermal stability, chemical stability, insulation, lubricity, water resistance, etc. High temperature resistance, wide operating temperature range, can be used continuously for a long time at 260℃ (high temperature, instantaneous temperature can reach 280℃); strong chemical stability, corrosion resistance; good self-lubricating, extremely low friction coefficient, little filter wear; PTFE The surface tension of the film is very low, and it has good non-stickiness and water repellency.   2. Polyester---PE filter bags are made of polyester fiber fabric. Polyester fiber has good performance at room temperature and is the main filter material in bag filters. It can withstand operating temperatures of 130°C under dry conditions; continuous operation above 130°C will harden, fade, and become brittle, and temperature will also weaken its strength. Accuracy range: 1--300 microns.   3. Nylon---Nylon filter bags are made of nylon mesh fabric. Nylon mesh is also called nylon mesh, nylon mesh, and nylon mesh. It is made of chemical synthetic fiber and belongs to the polyamide system. The nylon mesh used in the filter bag has high strength, good wear resistance, chemical resistance, water resistance, and elasticity. Because the wire diameter is uniform and the surface is smooth, the ink can pass through it very well. The disadvantage is that nylon mesh has greater stretchability. The tension of this kind of screen decreases for a period of time after stretching, causing the screen printing plate to relax and reduce accuracy. Therefore, it is not suitable for printing circuit boards that require high dimensional accuracy.   4. Polypropylene---PP filter bags are made of polypropylene fiber fabric. Polypropylene has good wear resistance and high elastic recovery rate. It is an excellent thermoplastic fiber. Polypropylene felt is used for low-temperature pulse in smelting plants. Filter bags and pulse filter bags in chemical and pharmaceutical plants. Polypropylene accuracy range: 0.1--500 microns, maximum temperature 94 degrees. 5. Stainless steel metal mesh---metal filter bag surface filtration, with very low flow resistance. The weaving methods used for filter materials include: interwoven type, twill type and linen type. Metal mesh filter bags are suitable for use in oil suction filters in hydraulic and lubrication systems, or for coarse filtration of high-speed fluids, or for safety filtration of coolants.

Polyester filter bag is a commonly used filter bag, which is widely used in solid-liquid separation and solid-gas separation. PE polyester filter bag is made of polyester fiber non-woven needle punching process, hot air setting and other processing methods. A filter bag with the advantages of dimensional stability, high strength, long elongation, and good elastic recovery.During use, some damage may occur if used improperly. The following are troubleshooting methods:     Generally speaking, the main reasons for the failure of PE polyester filter bags are: 1. Mechanical wear failure during use of PE polyester filter bags 1) Wear between the filter bag and filter bag cage. The filter bag has holes in the corresponding annular ribs of the bag cage, apparently due to burrs on the bag cage. If you want to avoid or reduce the wear and tear of the bag cage during the production process, the quality of the bag cage must be strictly controlled. Any burrs, etc. should be prohibited from entering, otherwise they will enter the dust collector. These defects will directly affect the use effect of the filter bag and greatly shorten the filtering time. The service life of the bag. 2) Wear between the filter bag and the shell. Due to design or installation reasons, after the installation of the filter bag and the shell (or inner tube bracket) interfere, or the shell is too close to the filter bag, shaking and shell friction occur during injection, after a period of use, the contact hole between the polyester waterproof filter bag and the shell parts, causing damage to the packaging bag. 3) The filter bags are loose, causing damage to the cage between the filter bags. 2. Air abrasion during use of PE polyester filter bags 3. Temperature causes polyester waterproof filter bags to malfunction. 4. Packaging bag failure caused by lack of pre-treatment in the early stage of operation. Before the new dust collector is put into use, the surface of the filter bag should be pre-coated before the raw powder is used to avoid ignition of the oil filter attached to the surface of the packaging bag. Some production line operators are eager to put it into use and do not pay attention or ignore this work. This will cause the filter bag resistance to increase irreversibly. 5. Packaging fails due to too many parameter settings. 6. Incorrect selection of filter bags It is crucial to choose the appropriate filtering precision and different options for different filtering conditions. There is no doubt that if the PE polyester filter bag material is chosen incorrectly, it will not work properly; another different filter bag should choose different sutures, and this must also be considered during the bag making process.

The working principle of the dust collector is to intercept dust in the exhaust gas through the filter material. In addition, the dust received first forms a stable and dense gray layer (called a filter bed) on the surface of the filter material, which can play a very good filtration role. , especially bags made of woven cloth, this filter bed plays the main filtration role. Because the dust removal equipment actually travels far, when determining the equipment capacity, leave or reserve some space for possible additional equipment. The main function of the dust removal bag is to separate some gases discharged from the factory. Dust collector bags or dust collectors have the same function, separating dust from the exhaust gas, thus playing the role of environmentally friendly air.

There are three main reasons for dust bag replacement: damaged filter, premature filter failure, and incorrect filter or filter media. Replacing the dust collector filter element or dust chamber filter adds unnecessary expense and wastes maintenance time. Replacing filters too late risks exposing workers in your facility to dangerous dust and creating a risk of fire or explosion. Additionally, as filters become increasingly clogged, the energy cost of the compressed air required to run the system will increase, as will the pressure on the dust collection system's fans, bearings, etc.   1. The filter is damaged The most obvious sign of a damaged filter is dust coming out of the collector's exhaust or accumulating in the clean air chamber. A sudden, sharp drop in differential pressure is another telltale sign of filter damage, making it critical to monitor and chart differential pressure levels on a daily basis. When selecting a system, consider adding a bag break sensor. 2. In addition to obvious uncomfortable conditions such as fire or explosion, many other factors can damage filters. Moisture and excess heat can damage common filter bag fabrics, such as polyester or aramid, through a phenomenon called hydrolysis. This is a chemical reaction in which water reacts with the fibers of the filter bag and can cause severe damage, causing the bag to lose dimensional stability and fail to collect dust. Other failure mechanisms include mechanical wear from grinding dust, excessive pulses or damaged cages. 3. Filter failure The most common reason you need to change the filter is that the filter has expired. This means the bag has reached the end of its useful life. It has become filled with dust, and regular cleaning cycles will no longer remove enough dust for it to handle the required airflow levels.

Industrial dust is usually treated with bag dust collectors. If there are irritating gases, UV photolysis and activated carbon are also required.     Dust removal equipment commonly used to deal with industrial dust can be divided into mechanical dust collectors, electric dust collectors, filter dust collectors and scrubber dust collectors according to the dust collection machine. The principle of the pulse bag dust collector is that when the dust passes through the filter layer, the dust particles in the airflow are blocked by the filter layer to achieve gas-solid separation, so that the dust-laden airflow passes through the bag filter material to capture the dust particles respectively, and the dust is removed. The higher power is generally 90% to 99%, but due to the temperature resistance of the bag filter material, it is sometimes not suitable for dusty industrial waste gas with high temperature;   The scrubbing dust collector uses liquid (usually water and organic solvents) to scrub dust-containing industrial gases, so that dust particles collide with liquid droplets or liquid films and are captured and separated from the air flow. The dust removal efficiency is 80% to 95%, and the operating cost is relatively low. High, the absorbed waste liquid needs to be considered for recycling or secondary treatment. Nowadays, the use of bag dust collectors is a good choice for general industrial dust treatment. However, the sticky nature of waste gas, dust, and large amounts of water vapor have always been taboo issues with bag dust collectors. Manufacturers must first understand the viscosity, humidity, etc. when planning. The key issue. If there is viscosity, it is generally not recommended to use a bag dust collector. Because the bag dust collector has high processing efficiency and low investment, most people like it. The sticky dust dry treatment process (adding anti-sticking agent before entering the bag dust collector) ), can be used to deal with the viscosity of spray painting exhaust gas, PVC, rubber and other industries to deal with the problem of oily dust exhaust gas. Generally, if the exhaust gas contains a small amount of dust or particles, it can be filtered by a spray tower, which can not only save costs, but also treat the exhaust gas. Assuming that the exhaust gas contains a lot of dust and particles, conventional spray towers cannot be used directly. Instead, a cyclone tower must be used to pretreat the dust before using a conventional spray tower. This can achieve the purpose of dust removal and exhaust gas purification.

Bag dust collectors are widely used because of their advantages such as high efficiency and energy saving. 1. Dust removal process: The airflow entering the bag dust collector will first pass through the converging part. Since the device in this part can minimize the speed of the airflow, inertial electrostatic effects will occur. During this process, large particles of dust will be separated and intercepted in the box by the partition. 2. Filtration and dust cleaning: When the airflow passes through the filter bag, dust finer than the filter bag will be isolated, and the clean gas will enter the outlet of the box through the filter bag and be discharged. But over time, a thick layer of dust will accumulate on the filter bag, causing the air flow to gradually decrease. In order to ensure the working efficiency of the bag dust collector, the contaminated filter bags need to be cleaned. The dust cleaning process is to spray high-pressure compressed air into the inside of the filter bag through a blowing device, so that the dust in the filter bag breaks away from the surface of the filter bag and is deposited in the ash hopper for collection.

According to dust removal technology, it is mainly divided into two types: wet dust removal and dry dust removal. The commonly used methods in industrial dust removal mainly include the following: 1. Wet dust removal Wet dust removal refers to a dust removal method that uses liquids such as water, engine oil, etc., and uses technical means such as spraying and membrane formation to capture dust and other particles and bring them into the liquid. Through the combination of dust and liquid, the purpose of purification is achieved. Common industrial wet dust removal equipment mainly includes fog cannons, dry fog systems, dual-fluid fog cannons, fog piles, smart car washers, airspace fog curtain systems, etc. 2. Dry dust removal Dry dust collectors are relative to wet dust collectors, but they are generally not called dry dust collectors. They are often classified according to their working principles, including gravity type, inertial type, centrifugal type, bag type, electrostatic type, etc. , these do not use water as filter media. Generally speaking, the most commonly used dry dust removal methods are bag dust removal and electric dust removal. HEADING has 20 years of dust control research and application cases. It is committed to the forefront of industry technology, promotes the integration of new business formats in the environmental protection industry, and provides you with environmental protection island flue gas treatment system solutions.

Standards and requirements for filter materials used in bag dust collectors 1. Particle size distribution: The particle size distribution of the filter material has a great influence on the filtration effect. Generally speaking, the particle size of the filter material should be able to include the vast majority of particulate matter. 2. High-temperature stability: During the garbage incineration process, the temperature is relatively high, and the filter material needs to have a certain high-temperature stability to prevent deformation or burning. 3. Dust removal efficiency: The density, surface charge and fiber structure of the filter material determine its dust removal efficiency, and it should be able to meet the national emission standards. 4. Corrosion resistance: Exhaust gas contains acidic or alkaline gases, and the filter material needs to have certain corrosion resistance to extend its service life. 5. Economy: The preparation materials and processing technology of the filter material have a direct impact on the cost. It is necessary to choose products with higher cost performance while ensuring quality. The quality of the filter material directly determines the purification effect of exhaust gas and the recovery and utilization rate of energy. Therefore, we need to strengthen the research and formulation of filter material standards for bag dust collectors, continuously promote innovation in filter material preparation technology, and promote the process of sustainable development.

Dust bag is a filter product made of fiber and base cloth through various processes that can capture flue gas dust particles. Common fibers include PPS fiber, P84 fiber, PTFE fiber, NOMEX fiber, and glass fiber, etc., and The selection of filter material is based on the properties and temperature of flue gas, the properties of dust, dust cleaning factors and system air leakage rate, etc. 1. PPS fiber: This fiber has excellent acid and alkali resistance and good wear resistance. The working temperature of the fiber is 130~170℃, the short-term working temperature is 190℃, and the melting point is 285℃. The oxygen content should be less than 8% during normal use. The higher the oxygen content, the operating temperature should decrease accordingly, and the oxidation resistance is poor; general requirements The oxygen content is within 10%, and the oxygen content decreases as the temperature increases; 2. P84 fiber: It has excellent resistance to sulfur oxides and nitrogen oxides, and has good alkali resistance. It is more suitable for use in places with acid and alkali corrosion. P84 is relatively sensitive to temperature. General requirements It operates at a temperature of 150--260 degrees Celsius. It has a three-blade structure, a large specific surface area, wear resistance, and high filtration efficiency. 3. PTFE fiber: Excellent temperature resistance, reaching 280 degrees. Due to the special molecular structure of PTFE material, it has extremely excellent chemical stability and corrosion resistance, which can improve the chemical erosion of filter materials. Due to the special molecular structure of PTFE fiber material, The characteristics of non-stick, water-repellent and non-flammable make this kind of fiber the best filter material. This kind of fiber is used as a base cloth to basically guarantee that the strength will not weaken during long-term use; 4. NOMEX fiber: Nomex fiber has excellent wear resistance and good temperature resistance. It can withstand continuous temperature up to 204 degrees and instantaneous 230 degrees. It is a non-heat shrinkable fiber and has average hydrolysis resistance, so it needs to be treated during use. Chemical treatment of fibers. 5. Glass fiber: The most practical advantages are high temperature resistance, good dimensional stability and high tensile breaking strength. In terms of resistance to chemical attack, glass fiber is very stable to other media except hydrofluoric acid, high temperature, strong acid and alkali. The disadvantage of glass fiber is that it has poor folding resistance and poor abrasion resistance. Although it is not resistant to folding and abrasion, it is cheap;

According to different industry characteristics and working conditions, suitable dust removal bags are also different. A large amount of dust particle pollutants will be produced during production, coal burning, transportation and other processes in steel plants, causing a wide range of pollution. Dust particles in the iron and steel industry have the characteristics of large quantity, wide pollution, complex composition, fine particles, and strong adsorption capacity. Suitable dust removal bags need to have high temperature resistance, high strength, toughness, easy cleaning, water and oil resistance, anti-static, corrosion resistance, etc. It is recommended to use synthetic fiber filter materials, such as aramid, P84, polytetrafluoroethylene and other fibers; composite filter materials of glass fiber and synthetic fibers, such as FMS, glass fiber and P84 composite filter materials; surface coatings of the above two types Processing and coating of filter media.

Dust bag is a kind of filter material commonly used in industrial production. It can effectively filter out dust and particles in the air and ensure the cleanliness and safety of the production environment. However, dust removal bags are prone to damage during use, which will not only affect the dust removal effect, but also increase the cost of repair and replacement. Therefore, how to prevent dust bag breakage.     1. First of all, choose a good quality dust bag. When purchasing dust removal bags, choose products produced by regular manufacturers and try to avoid purchasing low-priced and low-quality products. A good dust bag material should be wear-resistant, high-temperature resistant, corrosion-resistant and capable of being used for a long time in harsh working environments. 2. Secondly, pay attention to the maintenance of dust removal equipment. Regularly inspect and maintain the dust removal equipment, and clean the dust and particles on the dust bag in a timely manner to avoid excessive accumulation of dust and particles on the dust bag, causing damage to the dust bag. At the same time, pay attention to the operating status of the dust removal equipment to avoid damage to the dust bag due to equipment failure or improper operation. 3. Pay attention to the installation and replacement of dust bags. When installing the dust bag, follow the installation instructions provided by the manufacturer to avoid damage to the dust bag caused by improper operation. When replacing the dust bag, choose a product with the same specifications as the original dust bag to avoid damage to the dust bag due to mismatch in specifications. 4. Strengthen the safety awareness of operators. When using dust removal equipment, it is necessary to strengthen employees' safety awareness to avoid damage to the dust removal bag due to improper operation. At the same time, employees must be trained and educated to improve their skill levels and safety awareness to avoid damage to the dust bag due to human factors.   Preventing dust bag breakage requires many aspects, including choosing good quality dust bags, paying attention to the maintenance of dust removal equipment, paying attention to the installation and replacement of dust bags, and strengthening employees' safety awareness. Comprehensive preventive work can ensure the normal operation of dust removal equipment and the cleanliness and safety of the production environment.    

When working, the dust bag mainly removes particulate matter in the air through three filtration mechanisms: inertial collision, interception and blocking, and diffusion deposition. Below we will look at these three mechanisms in detail.   1. Inertial collision Inertial collision is one of the most basic filtration mechanisms of dust bag. When particles in the air flow move, some particles fly freely between the entrance and exit by virtue of their own mass and speed, which are called inertial particles. Because inertial particles have high mass and speed, when they meet the dust bag, they often directly hit the bag surface due to inertia.   2. Intercept and block For some particles with small mass, light mass and small diameter, they will weaken or disappear when intercepted by inertial collision. At this time, the interception and blocking mechanism of the dust bag will come into play. Through the multi-directional interlacing and electrochemical action of its internal fibers, the dust bag can capture part of the small particles that volatilize into gas and form a deposition layer on the fibers, thereby reducing dust pollution in the air.   3. Diffusion deposition As the filtration time increases, when the particles contact the surface of the dust bag, the diffusion deposition process begins. Diffusion deposition refers to some small particles that are extremely easy to be captured. They are constantly deflected in the airflow during the long operation process. The continuous flow collides and entangles with the dust bag, and is finally deposited on the surface of the bag.

Polyester dust bag, PPS dust bag, PTFE dust bag and fiberglass dust bag are four common material dust bags widely used in the field of industrial dust removal. When selecting the material of industrial dust bags, factors such as the production environment, pollutants, and service life should be comprehensively considered to achieve the optimal filtration effect, unify the standards and terminal needs of the industrial manufacturing process, and make efforts to protect human health and environmental protection. Make a positive contribution.

The reasons leading to excessive dust emissions from dust collection bags mainly include quality issues, operational issues, management issues, design issues, and material issues. In order to reduce dust emissions and improve air quality, we should also start from many aspects and take effective measures to solve this problem.   1. The material quality of dust bag is one of the important factors affecting dust emission. 2. The operation problems of dust bag equipment are also one of the important factors affecting dust emissions. 3. Irregular corporate management is one of the important factors affecting dust emissions. 4. The unreasonable design of dust bag is also an important reason for excessive dust emission. 5. The material of the dust bag is inappropriate and unreasonable, which is also an important reason for excessive dust emission.

With the development of industry, dust has become a problem that cannot be ignored.   1. Impact on the environment: After industrial dust is produced, it will enter the atmosphere and directly pollute the environment. These dust particles are tiny and can be suspended in the air for several hours or even longer, so the dust is easily blown to other areas by the wind. Because the dust settles on leaves and grass, it can lead to infertile soil, reduced seasonal rainfall, acidification of the soil and loss of oxygen from root cells. 2. Impact on health: During breathing, dust can enter the lungs and cause health problems. Industrial dust is a collection of particles that vary in size, shape and chemical composition, which means they have different health effects. Generally, dust particles that are particularly small are more dangerous because they can pass through the alveoli and enter the blood, head and brain cells. Workers may suffer from respiratory diseases such as asbestos poisoning, pneumoconiosis, bronchitis and pneumonia after long-term inhalation of large amounts of dust. A more serious impact is that dust can be transmitted through the air, posing a serious threat to public health. 3. Ecological impact: Many animals depend on the surface or shallow soil for food, and industrial dust can make the environment inhabited by these organisms barren and unsuitable for survival. Some of these organisms may enter the local food chain. If the impact of dust is quite large, it may lead to species extinction and regional human food safety problems.

PPS (polyphenylene sulfide) is a high-quality cellulose material. With its unique molecular structure and mechanical strength, it has become one of the common dust bag materials on the market. HEADING's PPS dust bag has the following salient features: 1. Excellent temperature resistance: PPS material can maintain stable physical properties and chemical stability in a temperature range of up to 190°C, making it widely used in filtration equipment in various high-temperature industrial environments. 2. Efficient filtration performance: PPS material has excellent chemical inertness and adsorption performance, and can effectively filter a variety of pollutants without the participation of other auxiliary materials, especially smoke, fine dust, High concentration dust such as iron oxide. 3. Good corrosion resistance: PPS material has very good chemical corrosion resistance and can maintain its original physical properties in strong acid and alkaline environments, allowing it to be used stably in harsh industrial environments. 4. Long service life: PPS dust bag can maintain its filtration performance and physical strength for a long time, and its durability and stability greatly improve efficiency and save costs for modern industrial production.

Analysis of the reasons for the corrosion of the dust bag: This is also a common problem with the dust bag. The dust fumes emitted by some factories contain other corrosive chemicals such as acids or alkalis, which will corrode part or all of the dust bag and reduce its service life and performance. Solution to dust bag corrosion: When such a situation occurs, the problem needs to be solved from the source, and the chemical composition of the exhaust gas needs to be detected and controlled. In addition, you need to choose a suitable corrosion-resistant dust bag.

There are two main reasons for dust bag burnt: (1) High-temperature particle sparks and spontaneous combustion of deposits. The high-temperature particles or charged dust discharge sparks emitted by the flue gas will burn holes in the dust bag and cause the collected dust to leak. (2) Under certain circumstances, the dust accumulated in the dead ends of the dust collector or in the ash hopper will spontaneously ignite, causing the dust bag to be burned. Solution to filter bag burnt: The best solution is to install a flame suppression device in the dust removal system to prevent open flames from entering the dust collector and causing hidden dangers. During routine maintenance, dust accumulation in the dead corners of the dust collector needs to be cleaned regularly.

Dust bag is a dust filtration product with wide application prospects and environmental protection significance. Poor quality dust bags will seriously affect the dust removal work and cause dust pollutants to be discharged into the atmosphere, causing environmental pollution. Generally, the quality of dust bag can be judged by looking at color, gloss, texture, touch, weighing method, specific functions, physical properties, mechanical properties, dust filtration characteristics and other methods. The specific methods for judging the quality of dust bag are listed below for reference only.   1, look at the appearance. The most intuitive way to judge whether a dust bag is good or bad is to "look". It is necessary to observe whether there are black spots, jumpers, punctures, defects, broken wires, joints, etc. on the surface of the dust bag. 2, look at the gloss. Dust removal bags with different qualities and uses will have different glossiness. For example, long-fiber filter cloth has a smooth appearance and good gloss, while short-fiber filter cloth often has a fluffy appearance. 3. Look at the texture. Dust-removing cloth bags with different textures will also have different specifications, such as twill weave, plain weave and other patterns can also be used as the basis for judging the model. 4. Look at the touch. You can feel the sparseness of the fibers by touching them with your hands, and you can count how many filaments there are in the range of 10cm. The dust bag has a corresponding density coefficient according to the specification, which can be roughly judged by the touch. 5, burning hair. Burning part of the bag material can also be used as a way to judge. If the bag burns and emits black smoke, it means that it is a dust bag made of polyester. If it emits a blue light after burning, it is polypropylene. 6. Weighing method. Weighing some bags can quickly make judgments on the production process and material of the dust bag. 7.Specific functions. Factors such as temperature resistance, corrosion resistance, electrostatic properties, and hydrophobicity can all affect the performance of dust removal bags. The appropriate dust removal bag can be selected according to the specific dust removal environment. 8. Physical properties. Such as unit area, quality, thickness, width, organization of woven fabrics, fabric density, porosity, etc. 9. Mechanical properties. Such as breaking strength, elongation at break, elongation of the warp and weft load of the bag, bursting capacity of the filter material, etc. 10. Dust filtering characteristics. Such as resistance coefficient, static dust removal efficiency, dynamic dust removal efficiency, dynamic resistance of filter material, resistance coefficient, dust stripping rate, etc.  

Anti-static dust bag is a kind of filter bag specially used for industrial dust removal. Its main materials are anti-static polyester fiber, conductive fiber and other special fibers. These materials are combined together through a specific process and have good antistatic properties and efficient filtration effects. In industrial production, dust removal equipment in many industries needs to use anti-static dust bag to ensure the cleanliness of the production environment and the normal operation of the equipment. Common application fields include electronics, semiconductors, optoelectronics, food, chemical industry, etc. For example, in the electronics industry, the manufacture of high-precision chips requires the use of a clean room, and the anti-static dust bag is an important part of keeping the clean room clean.

The processing technology of an aluminum factory is mainly composed of a shot blasting machine and a dust removal system, among which the dust removal system is most likely to cause dust accumulation and cause an explosion.   1) The common surface treatment of aluminum products such as aluminum alloys and aluminum profiles is polishing and grinding, which will produce a large amount of aluminum powder and dust.   (2) Aluminum powder has good heat transfer performance, and its danger is that the dust is flying and mixed with air, and if it encounters sparks, it will explode and burn.   (3) Mixing aluminum powder with other oxidants can also form an explosive mixture. If it contacts with acid and alkali, hydrogen gas will be produced, and hydrogen gas is also easy to burn and explode in the air.   (4) The processing workers in the aluminum factory all use shot blasting machines to polish, and the shot blasting machines are equipped with a bag filter to prevent the accumulation of aluminum powder from causing explosions.  

Smelters generally use FMS and P84 dust filter bags. There are many types of work in smelters. Usually, the smelting products of smelters are more complicated and various, and the profit: copper, iron, aluminum, zinc, lead, tin, etc. are all processed by smelters. While producing these things, there will be a lot of harmful substances to the human body, so we will choose to deal with the dust through the bag filter, but the bag filter is composed of some accessories such as bag, here the dust bag is a part of the filter Core accessories.

The three defenses of the three-proof dust bag are "waterproof, oil-proof, and anti-static". That is to say, on the basis of the anti-static needle felt, the function of "water repelling and oil repelling" is added, which is suitable for occasions with high moisture content, and conductive fibers or stainless steel conductive materials are mixed into the chemical fibers for the production of needle felt. The three-proof dust bag has certain advantages, that is, the surface is smooth, the dust is easy to clean, and the running resistance is reduced.

High temperature dust removing bag usually refers to the dust-removing bag that is used when dealing with high temperature (

1. PTFE fiber has superior temperature resistance, reaching 280 degrees. Because of the special molecular structure of the PTFE material, it has excellent chemical stability and corrosion resistance, which can improve the chemical corrosion of the filter material. Because of the non-stick, water-repellent, and non-combustible properties of PTFE fiber materials, this fiber has become the best filter material. This kind of fiber is used as the base fabric, which basically guarantees the strength without loss during long-term use; 2. The surface layer characteristics of the material, that is, the work done by the solid and the liquid in contact, PTFE is very easy to repel the liquid in contact with it; 3. The self-lubrication of PTFE surface layer, PTFE has a spiral structure, and the intermolecular attraction is very weak, which makes the friction coefficient of PTFE extremely low compared with other polymers; 4. The solubility of the material, the solubility of PTFE is extremely poor, and the probability of its adhesion will be smaller. Finally, it needs to be emphasized that the PTFE dust bag should not damage the surface layer of the film layer during installation and use. Sharp tools can cause contact and damage the dust bag.

The main function of the dust collector bag is to capture the fine and dry dust in the flue gas, but in the actual working process, a large amount of dusty flue gas enters the dust collector bag and will settle into the ash hopper due to gravity, while The fine particles of dust and flue gas will be blocked by the bag of the dust collector during the filtration process, thereby purifying the flue gas.   1. The choice of filter material for the dust collector bag, the dust bag should not be sticky and easy to clean. 2. Control the cycle of dust removal: shorten the cycle of dust removal, which is conducive to timely cleaning of lime dust on the surface of the bag and reduces the possibility of adhesion. 3. The bag-type dust collector is equipped with a bypass pipe to avoid the bag dust collector, so that the dusty air can be discharged into the atmosphere through the cyclone dust collector. 4. Sufficient dust cleaning and blowback pressure. 5. Appropriate filtering wind speed. 6. Use filter cloth with lint-free and lint-free surface: use water-repellent, oil-proof and dust-removing bag, surface coating, calendering and other post-processing methods. 7. When it is just installed and put into operation, it is necessary to apply dust to the surface of the dust bag, so that there is an initial layer on the surface. 8. An additional small hot air generator is installed on the dust collector, so as to keep the temperature inside the dust collector as it is and avoid the problem of moisture in the bag of the dust collector.