Relationship Between Dust Holding Capacity of Filter Bag and Filtration Efficiency

The filtration efficiency of the filter bag is related to the structure of the filtration material on the one hand, and depends on the dust layer formed on the filtration material on the other hand. From the structure of the filtration material, the filtration effect of the short fiber is higher than that of the long fiber. The filtration effect of the needle felt filtration material is higher than that of the woven fabric filtration material. From the point of view of the formation of the dust layer, for the thin filtration material, the dust layer is destroyed after the cleaning, and the efficiency is much reduced. However, the thick filtration material still retains a part of the dust in the filtration material after the cleaning, avoiding excessive ash removal. In general, the filtration material can achieve the highest efficiency without breaking. Therefore, as long as the designing parameters are selected properly, the dust removal effect of the bag filter will not be problematic.