Dust in workshops is composed of fine particles produced by mechanical processes (such as crushing, screening, transportation, etc.), which are solid particles that can disperse (suspend) in the air for a certain period of time. Dust particles range in size from as fine as 1/10μm to several hundred micrometers.

Dust removal equipment for dust workshops, pulse bag dust collectors have filters arranged in a straight line, with each row equipped with a pulse valve to control the compressed air pulse cleaning. The operation of the pulse valve is controlled by a programmable controller. During cleaning, the cleaning controller sends a command, causing the pulse valve to release 0.5-0.7MPa compressed air at the moment of action. The compressed air is directed at high speed into the filter through small holes on the nozzle facing the filter bags, simultaneously generating a secondary airflow several times the size of the compressed air. This creates an instantaneous shock wave that propagates downward along the entire length of the filter.