When the dust-containing gas passes through the filter material, the dust is blocked on the surface, and clean air is discharged through the gap of the filter material. Air filtration technology is the basic principle of the bag filter. Currently used in air filtration mainly include fiber filtration, membrane filtration (film or membrane) and dust layer filtration. These three methods can achieve the purpose of separating solid particles in aerosols, but their separation mechanisms are different. of. The structure of the bag filter is mainly composed of: upper, middle, lower part, ash cleaning system and ash discharge mechanism. The performance of the bag filter is that in addition to the correct selection of the material of the bag, the dust removal system plays an important and decisive role in the bag filter.

The technical characteristics of the bag filter is that the dust removal efficiency is as high as 99%, and the dust concentration of the gas at the outlet of the dust collector is within 10mg/m2. It has this higher resolution for fine dust with submicron particle size. It has a wide range. It is used for dust removal of industrial furnaces and kilns, which reduces the emission of air pollution. It is not sensitive to the characteristics of dust, and is not affected by dust and resistance. It uses glass fiber, P84 and other high-temperature filter materials and poly four In the case of vinyl fluoride, it can be carried out above 200°C, with simple structure, convenient maintenance, and lower cost than electric precipitators under the same dust removal efficiency.