How Long Does It Take to Replace the Dust Bag of the Bag Type Dust Collector?

The service life of bag type dust collectors are different from each other, and there is no set replacement time. It has to take actual use into consideration. The cloth bag is an important part of the dust collector, and the dust filter bag is in direct contact with harmful gases and dust. It captures and filters flue gas through the filterability of the fiber fabric to achieve an ideal dust removal effect.

In order to prolong the service life of the heat-resistant dust-removing bag, when using bag-type dust removal equipment, pay attention to the maintenance of the equipment and master the correct operation method of the bag type dust collector. Timely maintenance and scientific use of dust-proof cloth bags can not only play a better filtering effect, but also extend the service life of the cloth bags.

1. There are different materials for cleaning dust collector filter bags, and the service life of each material bag is different. Bag type dust collector are generally divided into normal temperature dust collectors and high temperature dust collectors according to the dust collection temperature, so the supporting materials of the bag are different.

2. Different working conditions, different dust media, different characteristics come with different dust bag service life. The degree of damage caused by different working conditions is also different. Therefore, it is sometimes necessary to change the dust bag once a year. Especially in a high temperature and strong corrosive environment, the dust bag is easily damaged, and the replacement time tends to be short. Normal temperature dust removal cloth bags generally handle dry gas dust that is not resistant to acid and alkali, and are generally used for about 1-3 years under the restricted conditions of good working conditions. High temperature dust removal cloth bags are used in different fields, and the service life of the same material is different due to other variations. Cooling measures should be taken when the temperature of the high-temperature cloth dust collector bags exceeds the temperature that the material can withstand.

3. When using a bag type dust collector, according to bag filter working principle, it is necessary to prevent the gas from cooling  in the temperature below the dew point inside the bag, especially when using a negative pressure bag filter. In order to prevent condensation, the temperature of the gas in the dust collector and its system is 25-35℃ higher than its dew point to ensure a good use effect of the filter bag. Due to the leakage of air into the casing, the air temperature in the bag room is lower than the dew point, the filter bag will be damp so that the dust will not loosen. But it will stick to the filter bag and block the fabric holes, then resulting in the failure of dust removal and the pressure drop of the dust collector. Under this situation, the machine can not continue to run, and some patch bags cannot be dusted. It is feasible to adopt scientific, standardized and reasonable maintenance methods.

4. When the bag type dust collector stops running for a long time, pay attention to the humidity in the bag room. The condensation of water vapor in the filter bag house is due to the cooling of moist gas, especially the gas produced by combustion. Therefore, before the system is cooled, the humid gas should be removed and replaced with dry air to prevent damage and corrosion of the filter bag and dust removal body.