The dust removal efficiency is an important parameter to measure the quality of the pulse dust removal equipment. Dust removal efficiency refers to the ability of dust removal equipment to handle dusty gas, and it is directly related to the level of dust removal rate of dust removal bag. There are many factors that affect the dust removal rate of the dust bag, such as the thickness of the dust, the character, the resistance, the material of the dust, filter material, the selection of the filter wind speed and the dust removal method. All of this will have an impact on the dust removal rate of the dust bag. The factors affecting the dust removal efficiency of the pulse dust collector are as follows:
Even though the dust bags are made of the same model and material, the dust removal efficiency is different under different working conditions. Under normal circumstances, the dust removal efficiency of the dust bag that is used at the beginning is the lowest, but when the dust is accumulated in the dust bag, its dust removal efficiency is the highest. However, after cleaning the dust, the dust collection efficiency of the dust bag will be reduced.
It can be concluded that the pulse dust collector mainly collects the dust layer on the surface of the dust bag, which is also usually called the secondary filter layer, and the dust bag only plays the role of supporting the dust layer. Therefore, when we clean the dust, the strength must be appropriate, and a dust layer with a certain thickness should be retained to avoid a drop in dust removal efficiency.
The dust collection efficiency of the ordinary dust collection bag for the 0.2-0.4μm dust particle is the lowest. This is because the dust particles in this range are at the lower limit of by pulse dust removal principle. So for the pulse dust collector, the dust in the range of 0.2-0.4μm is the most difficult to capture.
The dust load deposited on the surface of the dust bag is also directly related to the dust removal efficiency of the pulse dust collector.