The main structure of the bag dust collector is composed of the upper box, the middle box, the lower box (ash hopper), the cleaning system and the ash discharge mechanism.

When the dusty gas flows through the filter, the dust will be collected on the outer surface of the filter bag, and the clean gas will enter the inside of the filter bag. The cage-shaped bracket in the bag plays the role of supporting the filter bag to prevent the filter bag from collapsing. The fabric and design of the dust bag should strive to achieve high filtration efficiency, easy dust removal, and long-lasting durability. The selection of dust bags is very important because it has a great impact on the dust removal efficiency of the dust collector. The selection of dust bags should be based on the following points: gas temperature, humidity and chemical properties, particle size, dust concentration, filtration wind speed, dust removal method, etc. Bag dust collector is a new type of dust filtering device that uses fiber or inorganic fiber filter materials from agricultural systems to filter out dust in flue gas based on the filtering principle. Dust removal process: Dust-containing gas enters the middle box from the inlet, enters the bag from outside the filter bag, and the dust is blocked outside. The purified air flows into the bag, then enters the upper box from the top of the bag, and is finally discharged from the exhaust pipe. The new high-efficiency long bag dust collector that combines chamber backblowing with pulse cleaning solves the problems of insufficient backblowing strength of traditional pulse dust collectors and the problems existing in the ordinary pulse cleaning process, prolongs the service life of the filter bag, and enables it to better utilize the powerful cleaning of compressed air.

A dust collector is a device that separates dust from smoke. The bag-type dust collector is also called a filter-type dust collector. It is a bag filter woven with fibers and is used to capture solid particles in dusty gas. It is a high-efficiency dust collector. Its working principle is: when dust particles are around the filter cloth fibers, they collide with the fibers due to their own inertia.