1. Gas cleaning: Gas cleaning is by means of high-pressure gas or external atmosphere to blow back the filter bag to remove the dust on the filter bag. Gas cleaning includes pulse blowing, reverse blowing and reverse suction.
2. Mechanical rapping for dust removal: divided into top rapping and middle rapping for dust removal (both for filter bags). The mechanical rapping device periodically beats each row of filter bags in turn to remove the filter. Dust on the bag.
3. Manual tapping: each filter bag is tapped manually to remove the dust on the filter bag.