In general, when using such equipment as a bag filter, it is important to maintain it, because it is relatively expensive and a very important piece of equipment. If the bag filter is not maintained properly, its service life will be reduced, but in addition to maintenance, there are many problems that everyone needs to pay attention to in normal use.
Bag dust collectors are widely used in thermal power plant boiler flue gas treatment due to their high dust removal efficiency, low energy consumption, simple process principle, and adaptability to different types of coal. In the process of using a bag filter, you need to understand the factors that affect the service life of the filter bag. It is convenient for users to take timely measures such as inspection, maintenance and maintenance to improve the service life of the bag filter.
Factors affecting the service life of the bag filter:
1. The influence of high temperature on the filter bag. When the exhaust temperature exceeds 160 ° C, the temperature has a significant impact on the life of the filter bag. As the temperature rises, the life of the filter bag will gradually increase, and the filter material will be burned when the temperature is reached. Therefore, the exhaust temperature should be strictly controlled during operation, long-term over-temperature operation and sudden temperature rise in a short period of time.
1. The influence of the material of the filter bag; the material of the filter bag should be selected to block the passage of fine dust, the perforations of the fabric warp and weft threads are small, the warp and weft lines are thin, the fabric fluff is long and elastic, can cover the perforations and have strength.
2. The influence of high temperature on the filter bag. When the exhaust temperature exceeds 160 ° C, the temperature has a significant impact on the life of the filter bag. As the temperature rises, the life of the filter bag will gradually increase, and the filter material will be burned when the temperature is reached. Therefore, the exhaust temperature should be strictly controlled during operation, long-term over-temperature operation and sudden temperature rise in a short period of time.
3. The impact of destructive dust removal on the filter bag. In order to keep the pressure difference of the filter bag at the design value, the fly ash attached to the surface of the filter bag should be cleaned regularly.
4. The influence of filtering wind speed on the filter bag. Filtering wind speed is an important factor in determining the performance of the dust collector. For dusty flue gas with high dust concentration, fine particles and high abrasion, the filtering wind speed should be smaller, otherwise the wind speed should be higher.
Pay attention to the following points when extending the bag filter:
1. It adopts patented technology to produce the bag filter so that the scale can be complete. Good performance
2. At the beginning of design, it should be strong. In this way, the use time of the filter bag of the dust collector can be prolonged as much as possible;
3. There should be as few removable equipment as possible, and fewer replacement parts can be added;
4.Choose special stainless steel materials such as round, oval, lantern and so on as dust collector bag cage
