Three factors affecting the dust collection efficiency of bag filter

1.The influence of the filter bag of the dust collector on the dust removal efficiency under different working conditions

The classification efficiency of the same kind of dust removal filter bag under different working conditions is different, and the dust collection efficiency of the dust removal filter bag is reduced after cleaning. The main dust collection function of the bag filter is the dust layer on the surface of the dust filter bag, which is usually called the secondary filter layer, and the dust filter bag only plays the role of supporting the dust layer. Therefore, the intensity of dust removal should be appropriate, and a thick dust layer should be retained to avoid the reduction of dust removal efficiency.

2.The influence of dust particle size on the dust removal efficiency of bag filter

The dust collection efficiency of the bag filter for the particle size of 0.2-0.4μm is low, because the dust particles in this range are at the lower limit of the “intercepting action” and “diffusion action” of the bag filter action principle, so dust of 0.2-0.4μm in the range is difficult to capture.

3.The influence of the structure of the dust filter bag and the dust load on the dust removal efficiency of the bag filter

The use of various dust removal devices can not only improve product quality and reduce costs, but also be the main measure to control dust pollution. The dust removal efficiency, equipment and operating costs of the dust collector are different. When setting up a dust collector, having a deep understanding of the performance of various dust collectors, and fully consider the structure of the dust generating equipment, the types of raw materials and fuels, the operating conditions, and the nature and amount of dust-containing gas. The purpose of using the dust collector, the characteristics and value of the dust collected by the bag filter, and the amount of dust collected. So as to combine into the most economical dust removal system, but also to maintain the appropriate dust removal efficiency.