Bag filter is a dry dust filter device.Filter material to use after a period of time, due to the screen, collision, stranding, diffusion, electrostatic effect, such as a layer of dust accumulation on the surface of filter bag, at the beginning of the dust layer is called layer, after the movement process, early become the main filter to filter material layer, depending on the role of the first layer, large mesh filter material can also get higher filtration efficiency.With the accumulation of dust on the surface of the filter, the efficiency and resistance of the filter are increased correspondingly. When the pressure difference between the two sides of the filter is very big, some of the fine dust particles that have been attached to the filter will be squeezed in the past, making the efficiency of the filter drop.In addition, the dust collector resistance is too high will make the dust removal system air volume significantly decreased.Therefore, after the resistance of the dust collector reaches a certain value, the dust should be cleaned in time.The primary layer should not be destroyed during ash removal, so as to avoid the decrease of efficiency.
Structural characteristics
The structure of bag-type dust collector is mainly composed of upper box, middle box, lower box (ash bucket), ash removal system and exhaust flying mechanism.
In addition to the correct selection of filter bag materials, the dust removal system plays a decisive role in the performance of the bag filter.Therefore, the dust removal method is one of the characteristics of the bag dust collector, and it is also an important part in the operation of the bag dust collector.