The causes and solutions of dust collector bag blockage

2020-06-24

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When the bag blockage occurs, the resistance increases, which can be shown by the increase in the reading of the differential pressure meter. Bag blockage is the main cause of bag wear, perforation, shedding and other phenomena.

Causes of dust bag blockage, check and repair according to the table. Generally take the following measures:

　　① temporarily strengthen the dust cleaning to eliminate the clogging of the cloth bag;

　　② Partial or total replacement of bags;

　　③ adjust the installation and operating conditions.

　　Prevent dust bag blockage measures phenomenon inspection content measures bag drenching dust collector box and other parts of the leakage to eliminate water leakage, dry, repeated dust cleaning dampness to identify the causes to eliminate the root cause, repair bag tension is not enough suspension method adjustment, repair the lower part of the bag blockage to identify the causes to adjust, repair the bag installation bad installation method adjustment, repair poor ash cleaning 1, ash hopper is not sealed

　　2, ash cleaning mechanism failure

　　3、Insufficient backblowing air volume

　　4, blowing pressure is not enough adjustment, repair bag shrinkage to identify the cause of changing the bag filter speed is too high air volume adjustment dust filter bag breakage

　　The shape of the bag and bag installation methods and institutions to determine the location of the bag easy to break, according to this can be checked and repaired. But mainly by the following reasons caused by the bag breakage, such as the occurrence of breakage phenomenon can refer to the following table for inspection::

　　Cause measures cause measures dust cleaning cycle is too long to adjust, shorten the filter bag aging to identify and eliminate the causes of dust cleaning time is too long to adjust, shorten the filter bag due to heat hardening to identify and eliminate the causes of insufficient bag tension to adjust, strengthen the burn to re-examine the filter bag material bag is too loose to adjust the leakage of dust to identify and eliminate the causes of poor installation of the bag to adjust, strengthen the filter speed is too high to adjust to reduce the aging of the bag

　　Mainly due to the following reasons, the cause must be investigated, take measures to eliminate and replace the dust filter bag.

　　1, due to abnormally high temperatures and hardening shrinkage;

　　2, due to the contact reaction with acid, alkali or organic solvent vapor;

　　3、Reaction with moisture.

　　4, the filter cloth should not be hung too loose or too tight, too loose easy to accumulate dust, too tight easy to pull bad.

　　5, the new process of old bags should not be mixed, to avoid different damage time affect the normal work of dust removal equipment.

　　6, the replacement down the cloth bag, first blow clean with compressed air, and then check whether there are holes, there are holes repaired and left for replacement. Such as dust glued bags, rinse with water, dry and set aside for replacement.

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