The bag filter is a dry filter device. It is suitable for capturing fine, dry, non-fibrous dust. The filter bag is made of woven filter cloth or non-woven felt, and uses the filtering effect of fiber fabric to filter dust-containing gas. When the dust-containing gas enters the bag filter, the dust with large particles and high specific gravity settles down due to the action of gravity and falls into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is blocked, causing The gas is purified.
The following are the factors that affect the dust removal efficiency of the bag filter.
The same dust bag has different dust removal efficiency under different working conditions. The efficiency of dust removal after cleaning the cloth bag is low. The dust removal efficiency of the dust bag is indeed high, and the efficiency will be reduced after the dust is removed.
It can be seen that, in fact, the bag dust collector plays the role of dust removal because of the secondary filtration of the layer of dust on the surface of the dust bag. So in fact, when cleaning the dust bag, some dust on the dust bag should be properly kept.
The bag filter is difficult to capture dust with a diameter of 0.2-0.4um. The dust in this range is the critical value of both "interception" and "spreading" of the working principle of the bag filter, so it is difficult to capture.
If too much dust accumulates on the surface of the dust bag, it will directly affect the dust removal efficiency of the bag filter.
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