Routine Maintenance of Bag Filter Dust Collector
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- Issue Time
- Apr 1,2024
Routine maintenance is crucial to ensure the operation of bag filter dust collectors are long-term, efficient, and stable. The key points for routine maintenance from D&G Machinery are as follow:
1. Enhance operator training. Operators should be familiar with the principles, performance, and operating conditions of the bag filter dust collector, and fully understand the ways of adjustment and repair.
2. Pay attention to the maintenance of mechanical components. Mechanical moving parts such as reducers and ash handling devices should be regularly lubricated and changed according to regulations. Abnormalities should be promptly addressed.
3. Oil-water separator maintenance. The oil-water separator in the gas tank and the air source triplet should be drained of pollutants once per shift. The oil-water separator should also be cleaned every 3 to 6 months. Regular check for the oil levels of the oil mist lubricator must be conducted, which should be topped up promptly.
4. Electromagnetic pulse valve maintenance. Any malfunction of the electromagnetic pulse valve should be addressed in time. If impurities or moisture are found inside, they should be cleaned up, and damaged diaphragms should be replaced in a timely manner.
5. Precautions for dust discharge device. The device must keep on running during normal operation of the dust collector, or the dust hopper will quickly be filled up with dust that overflows into the bag chamber, forcing the dust collector to stop.
6. Dust cleaning control. If a timed dust cleaning controller is used, the accuracy of the cleaning cycle should be regularly measured and adjusted as needed. If a pressure-based pulse controller is used, check the operation of the pressure switch and the blockage of the pressure port. In the case of clog, clean immediately.
7. Startup and shutdown procedures. During startup, compressed air should be connected to the gas tank, the control power on, and the dust discharge device activated. If there are other devices in the system, downstream equipment should be started first. After the process system has stopped, it is essential that the bag filter dust collector and exhaust fan continue to run for a period of time so as to ensure the removal of moisture and dust from the equipment. Note that when shutdown, the dust collector must be repeatedly cleaned (manually if needed) to remove dust from the filter bags and prevent moisture from causing clogging. The compressed air supply does not need to be cut off during shutdown, especially when the fan is working, so that the lifting valve cylinder is supplied with compressed air and remains in the open position.
8. Parameter monitoring. The process parameters of the bag filter, such as flue gas volume, temperature, and concentration should be measured periodically. Any abnormalities should be investigated and promptly addressed.
Above are the key steps for routine maintenance of bag filter dust collectors, which must be carefully executed to guarantee the continuous and efficient operation of the dust collector, maintain a clean and safe production environment, extend the service life of the equipment, so as to ensure the smooth progress of the project and bring more economic and environmental benefits.