Reasons for dust collector filter bag aging

In the bag filter, the dust filter bag is often prone to blockage, damage, and aging. The dust bag will reduce the dust removal efficiency, increase the maintenance cost of the dust collector, and even damage the bag filter for users. Bring economic burden.

When the filter bag is clogged, the resistance increases, which can be reflected in the increase in the reading of the differential pressure gauge. The clogging of the cloth bag will cause the cloth bag to wear, perforate and fall off.

The shape of the filter bag and the installation mechanism and method of the cloth bag determine the position where the cloth bag is easy to be damaged, and can be inspected and repaired accordingly.

The aging of the filter bag is mainly caused by the following reasons. Investigate the reasons for the aging of the bag, take countermeasures and replace the dust bag.

1. The bag hardening and shrinking due to abnormal high temperature;

2. The reaction occurs due to contact with acid, alkali or organic solvent vapor in gas;

3. React with moisture in dusty gas.

4. The filter cloth should not be hung too loosely or tightly. Too loose and easy to accumulate dust, and too tight to be easily damaged.

5. New technology and old cloth bags should not be mixed, to avoid frequent replacement and maintenance due to different damage times and affecting the normal operation of dust removal equipment.

6. Use compressed air to blow clean the replaced cloth bags first, and then check whether there are any holes. After repairing the cloth bags with holes, leave them for replacement. If the cloth bag is stuck with dust, wash it with water, dry it and save it for replacement.