In the vertical mill powder production system, the dust collector plays an important role in the dust removal system. The operating conditions of the dust collector directly affect the output of the mill, and even force the mill to shut down. Causing unnecessary economic losses to the property owners. The operating conditions of the dust collector are mainly reflected in the pressure difference of the dust collector. The following mainly elaborates on the main reasons and corresponding measures for the high pressure difference of the pulse bag filter bag.
1. The filter bag of the pulse bag dust collector contains too much dust gas, and the system has not taken any insulation measures, resulting in a large temperature difference between the dust in the pipeline and dust collector and the external environment. During the heat exchange process, water vapor condenses, increasing the humidity and viscosity of the dust. Insulation measures should be taken.
2. The material of the pulse bag filter bag does not match the characteristics of the dust, resulting in partial blockage of the air holes. For dust with high concentration, small particle size, high humidity and viscosity, membrane filter bags should be selected.
3. If the dust concentration processed by the system is too high and the filtering speed of the filter bag is too high, it will cause the pressure difference of the filter bag to be too high. The dust removal load of the bag filter and the filtering wind speed of the filter material should be appropriately reduced, that is, increasing the filtering area and reducing the filtering wind speed of the filter material.
4. Improper setting of parameters related to the pulse blowing system. If the time interval for pulse blowing of the filter bag is too short and the pulse blowing width is too short, the compressed air pressure is too low, resulting in a decrease in the tension of the filter bag and excessive accumulation of dust on the filter bag. The relevant parameters of the pulse blowing system should be reset.
