Bag-type dust collectors can be divided into five types: vibrating type, gas ring back-blowing type, pulse type, acoustic wave type and composite type according to different cleaning methods. The pulse back-blowing type can be divided into high-pressure pulse back-blowing type and low-pressure pulse back-blowing type according to the difference of back-blowing air pressure. The pulse back-flush bag filter can be adjusted due to its pulse blowing intensity and frequency, and has a good cleaning effect. It is currently the most widely used dust removal device in the world. After the dust-containing gas enters from the inlet of the baghouse, the diversion pipe enters each unit room. Under the action of the flow guiding device, the large particle dust separates directly into the ash hopper, and the remaining dust uniformly enters each chamber with the airflow. In the area, the filtered clean gas permeating filter bag is discharged through the upper tank, the poppet valve, and the exhaust duct. As the filtration condition progresses, when the surface dust of the filter bag reaches a certain thickness, the lifting valve is closed by the cleaning control device (differential pressure or timing, manual control) according to the setting program, the current unit is controlled to be offline, and the electromagnetic pulse valve is opened. Spray the dust off the filter bag. The dust falling into the ash hopper is discharged through the ash discharge valve and sent out by the ash conveying system.