Bag dust collector is a dry dust filter device. It is suitable for collecting fine, dry, non-fibrous dust. The filter bag is made of woven filter cloth or non-woven felt. The filtering effect of the fiber fabric is used to filter the dust-containing gas. When the dust-containing gas enters the bag type dust collector, the dust with large particles and large specific gravity is due to gravity. The action settles down and falls into the ash hopper. When the gas containing fine dust passes through the filter material, the dust is blocked and the gas is purified.
If you do not know how to maintain and maintain the bag dust collector, then the working time will be very short. The following introduces the maintenance and maintenance methods of the bag dust collector:
- To prevent dew condensation, it is necessary to prevent the gas from cooling below the dew point in the bag room, especially when using the bag filter under negative pressure. Because the outer shell often leaks air, making the gas temperature in the bag room lower than the dew point, the filter bag will be damp, so that the dust is not loosely but sticky to the filter bag, blocking the fabric eyelet, causing cleaning The ash failure causes the pressure drop of the precipitator to be too large to continue operation, and some of the paste bags cannot be removed. To prevent condensation, it is necessary to keep the temperature of the gas in the dust collector and its system above the dew point of 25 ~ 35 ℃ (such as the dew point temperature of the kiln-mill machine is 58 ℃, the operating temperature should be above 90 ℃), Ensure good use of filter bags.
- Always check the operation of control valves, pulse valves and timers. The failure of the rubber diaphragm of the pulse valve is a common fault, which directly affects the cleaning effect. The equipment belongs to the external filter type, and the bag contains a skeleton. It is necessary to check whether the parts that fix the filter bag are loose and whether the tension of the filter bag is appropriate. Whether the support frame is smooth to prevent wear on the filter bag. Compressed air is used for cleaning. Therefore, it is required to remove oil mist and water droplets, and the oil-water separator needs to be cleaned frequently to prevent the malfunction of the motion mechanism and the blockage of the filter bag.
