Working principle: the dust-containing gas enters the lower tank from the air inlet, and the dust with larger particle size settles first. The small dust-containing gas is filtered through the filter bag to become purified air, enters the upper tank, and is discharged from the air outlet. Attached to the outer surface of the filter bag. When the accumulated dust reaches a certain amount, it must be cleaned. When the ash is cleaned, the high-pressure airflow triggers the solenoid valves in the order of the pulse controller and enters the filter bag through the nozzle hole. The filter bag suddenly expands rapidly, so that the dust accumulated on the surface of the filter bag shakes off and enters the ash discharge device. The air blower is discharged, so that the periodic pulse is sprayed to clean the filter so that the filter bag is in an effective filtering state to ensure the normal operation of the dust removal system.

Suitable for front material fed procedure of the feed production plant.