Pulse dust collector refers to the method of removing dust attached to the filter media (bag or filter cartridge) by blowing compressed air; according to the size of the dust collector, there may be several groups of pulse valves, which are controlled by a pulse controller or PLC. Each group of pulse valves is opened to remove the dust from the part of the bag or filter cartridge it controls, while the other bags or filter cartridges work normally. After a period of time, the next group of pulse valves is opened to clean the next part. The dust collector consists of a hopper, an upper box, a middle machine box, a lower box, etc. The upper, middle, and lower boxes are divided into chamber structures. When working, dust-containing gas enters the hopper from the air inlet, and coarse dust particles fall directly into the bottom of the hopper. Fine dust particles enter the middle and lower boxes with the turning of the air flow. Dust accumulates on the outer surface of the filter bag. The filtered gas enters the upper box to the clean gas collection pipe-exhaust duct, and is discharged to the atmosphere through the exhaust fan.