Dusting effect and main function of dusting bag

- Jul 19, 2019-

Dusting effect and main function of dusting bag


The dust capacity of dust removal bag in the process of operation affects the resistance of filter material and the dust removal cycle. In order to prevent frequent dust removal and effectively extend the service life of filter bag, dust removal bag usually requires a larger dust capacity of filter material. The dust capacity is related to the porosity of filter material and the permeability of pulse dust remover.


From the composition of dust layer, regarding its thin filter material, dust layer is damaged and power is reduced a lot after dust removal, while thick filter material can also save some dust in the filter after dust removal to prevent excessive dust removal. In particular, the side leakage probability of the filter bag is small, which can ensure the filtration accuracy correctly, and can easily convert the filter bag, so as to reduce the operation cost.


Dust bag for use in its main function is effective in the process of the dust from the flue gas separation equipment, the cloth bag dust catcher is called filter type dust collector, is a kind of dry type high efficiency filter, it is the use of fiber knitting bag filter element to capture dust produced by the solid particles in the gas dust removal device. The principle of action is that dust particles are intercepted by the collision of inertia force and fiber when they are around the filter cloth fiber.


In the air box type and pulse type dust collector, dust is attached to the outer surface of the filter bag. When the dust-containing gas in the product passes through the filter bag effectively, the dust will be effectively captured and collected on the outer surface of the filter bag, and the clean gas will enter the inside of the filter bag through the filter material. The cage frame inside the filter bag is used to support the filter bag and prevent the filter bag from collapsing. Meanwhile, it helps to remove and redistribute the dust cake.


The fabric and design of dedusting cloth bag should pursue efficient filtration, easy to remove dust and durable effect. The selection of dust removal cloth bag is very important, which directly affects the dust removal effect of the dust collector. The selection of dust removal cloth bag can be made from the following aspects: gas temperature, humidity and chemical properties, particle size, dust concentration, filtration wind speed, dust removal mode and other factors.

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