What is the difference between pulse dust collection bag and blowback dust collection bag?
Difference between pulse dust remover and reverse blowing dust remover
The difference between pulse dust remover and blowback dust remover is that the pulse dust remover uses compressed air as the dust removal medium. According to the nature of the dust, offline and online dust removal can be selected. The blowback dust remover uses air as the dust removal medium, and the dust removal effect is less than that of the pulse dust remover
The pulse dust remover uses the electromagnetic pulse valve to work, and the back blowing dust remover uses the pressure difference of the back blower to work. The pulse dust remover uses the pulse valve connected to the air compressor to blow high-pressure air for dust removal, and the pressure can be adjusted, while the reverse blowing dust remover uses the high-pressure fan to blow cloth bags for dust removal.
The dust laden flue gas of the pulse reverse blowing dust remover passes through the filter material, and the dust particles are filtered down. The filter material captures coarse dust mainly by inertial collision, and the fine dust mainly by diffusion and screening. The dust layer of the filter material also has a certain filtering effect. The dust removal effect of bag filter is related to many factors, but mainly depends on the filter material. The filter material of bag filter is cloth or felt woven from synthetic fiber, natural fiber or glass fiber. The cloth or felt shall be sewn into cylindrical or flat filter bags as required.
Whether it is a blowback dust collection filter bag or a pulse dust collection filter bag, the dust mainly passes through the surface of the filter bag. After filtering by the filter bag, the clean air goes out through the inside of the filter bag.
According to the nature of flue gas, select the filter material suitable for the application conditions.
Generally, when the flue gas temperature is lower than 120 ℃ and the filter material is required to have acid resistance and durability, polyester flannelette and polyester needle felt filter bags are often selected;
When dealing with high-temperature flue gas (250 ℃), graphitized glass fiber cloth filter bag is mainly used;
In some special cases, carbon fiber filter materials are selected.
Anti static filter bag can be selected according to the nature of smoke, such as explosive and flammable dust; The filter bag can also be used for other surface treatment, such as PTFE film coating, water and oil repellent processes, to collect different dusts.
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