2023-09-27
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.
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