How to solve the problem when the self-cleaning filter is blocked

Self-cleaning filter as a filter equipment, in the daily use process will inevitably encounter some small problems, thus affecting the efficiency of filtration, we can only think of ways to solve it in order to let the filter normal use. So, how to solve the problem when the self-cleaning filter is blocked?

Filter bag dust cleaning is poor

It is understood that the self-cleaning filter if the frequency of cleaning, or cleaning time is too long, resulting in too much pressure, it is easy to loose the fiber tissue of the filter bag to increase the fine dust in the flue gas blocking the filter bag.

In addition, if the cleaning time is too long, the initial powder layer on the surface of the filter bag will be cleaned together, resulting in a decrease in the filtration accuracy of the filter bag. However, if the cleaning time is too short, the dust on the surface of the filter bag has not been completely cleaned, and then filtration begins. Dust gradually accumulates on the surface of the filter bag, which will also cause the blockage of the filter bag.

To solve the above problems, the industry suggests that the injection control instrument can be adjusted after several trial runs.

Moisture content

Water is the main cause of filter bag clogging. The cause of water is usually condensation at low temperature, especially when dealing with high temperature flue gas.

In this case, the following methods can be used to prevent: Avoid improper boot Avoid boot at lower than the dew point when the dust collector resistance is large. When the dust collector is running below the dew point, it is easy to cause problems. If the intake is not evenly distributed, it is easy to cause local corrosion of the dust collector shell. Therefore, it is necessary to avoid the dust collector working below the dew point. If a cold boot is unavoidable, use insulation devices such as steam insulation or electric heating insulation.

Air infiltration

It is reported that air infiltration often occurs in the dust collector's flange, access door or dust collector's mobile device, if the seal is not strict, the external air into the dust collector, in the treatment of high temperature flue gas, will produce a low temperature area in the dust collector, resulting in low temperature dew, corrosion dust collector, resulting in the filter bag paste bag or hardening.

Excessive filtered wind velocity

It is understood that if the filtration wind speed of the dust collector exceeds the design standard of the filter bag, it will also lead to the fine dust in the flue gas entering the fiber of the filter bag, and the blockage resistance of the filter bag will increase.

In view of this situation, you can use coated filter material, layer filter material or do pre-coating on the surface of the filter bag. For the viscous dust, it is necessary to reduce the filtering wind speed, or increase the pressure of pulse injection, or adopt the off-line pulse cleaning filter bag. The industry said that the better method is to increase the filtration area, reduce the filtration wind speed, and extend the service life of the filter bag.

The above is a simple description of how to solve the blockage of the self-cleaning filter. If you have other things you want to know, you can consult Henan Aite Environmental Protection Equipment Co., LTD. The company is focused on R & D, production and manufacture of replacement imported filter element, filter, oil filter and other oil purification products, sewage treatment products, air dust removal products, pure water treatment products, filter press products.