The dust removal filter bag is the heart of the operation of the bag filter. Usually, the cylindrical pulse filter bag is vertically suspended in the dust collector. The dusty gas enters the dust collector from the air inlet and passes through the deflector of the ash hopper, so that part of the large particle dust in the gas is separated under the action of inertial force and directly falls into the ash hopper, and the dusty gas enters the filter bag filtration area of the box, Most of the dust is trapped on the outer surface of the filter bag, and the clean gas enters the inside of the filter bag through the filter material. The purified gas enters the upper box through the filter bag mouth, and then is discharged from the air outlet. The cage inside the filter bag is used to support the filter bag, prevent the collapse of the filter bag, and help to remove and redistribute the dust cake.
- Do not mix old and new dust removal filter bags. The dust removal effect is affected due to the different damage time of the old and new filter bags.
- Pay attention to the aging degree of dust removal filter bag. There are three main factors causing aging: ① hardening shrinkage caused by abnormal high temperature; ② Due to reaction with water molecules; ③ Due to vapor contact reaction with organic solution.
- The dust removal filter bag shall not be too tight or loose. Too tight will damage the filter bag, and too loose will accumulate dust.
- Cleaning of dust removal filter bag. First, remove the filter bag and clean it with compressed air, and then check whether the filter bag is damaged. If it is damaged, it can be used after repair. If there is dust stuck to the filter bag, it can be washed with clean water and dried.