Cleaning Performance Of Line Spray Pulse Bag Filter

Generally, the dust load on the filter material of the line spray pulse bag filter is 0.1~0.3kg/m3,Pulse Bag Filter and the pressure drop reaches 1000-1500Pa, which means that the dust needs to be cleaned. Usually the resistance of the filter bag reaches 250mmH20 (2500Pa) and requests to replace the filter bag. Because the properties of dust and filter material are different,Pulse Bag Filter the difficulty of cleaning is very different. Fabrics are easier to clean than blanket filters,Pulse Bag Filter coarse dusts are easier to clean than fine dusts,Pulse Bag Filter and the ratio of the remaining adhesion to the total dust load component that should be kept after cleaning is a quantitative goal to measure the cleaning function. For the sake of simplicity,Pulse Bag Filter the pressure drop ratio before and after cleaning at a certain filtration speed (called the residual rate of cleaning) can be used to indicate.

Different cleaning methods of the line-spray pulse bag dust collector have different cleaning effects. Generally,Pulse Bag Filter the mechanical cleaning is better than the reverse air cleaning, but the filter cloth is damaged more seriously. Regarding the dust with high viscosity and small pouring density,Pulse Bag Filter the suction of the fan (stop the fan or close the valve) must be stopped at the time of cleaning,Pulse Bag Filter otherwise the cleaning is incomplete or even unable to clean. Pulse cleaning is the main method of cleaning now. It is the filtering speed in various cleaning methods. Pulse-chamber backflushing can avoid the secondary pollution of dust. The cleaning effect is very good,Pulse Bag Filter but the pulse-chamber backflushing structure is messy, Pulse Bag Filter the manufacturing cost is high, and the repair cost is large.

The backflushing effect of the grading and branching chamber is not as high as the pulse cleaning effect. The filtering air speed is required to be smaller than that of the pulse cleaning,Pulse Bag Filter but because of the simple structure,Pulse Bag Filter the classification service life is usually higher than that of the pulse valve. The use of graded sub-chamber blowback can greatly reduce the capital cost,Pulse Bag Filter and the repair cost can also be reduced.