CAMCORP Baghouse Collector - Manual (Page 50)

CAMCORP, INC.
Phone: 913-831-0740 Fax: 913-831-9271
www.camcorpinc.com
Troubleshooting the Dust Collector (continued)
Continuous Flow of Dust in the Clean Air Exhaust
(Primary Dusting)
Holes in the tube sheets
Check the tube sheet for holes, cracks or loose bolts that would permit
dusty air to bypass the filter bags.
Puff of dust in the clean air exhaust after each pulse
(Secondary Dusting)
Compressed air manifold pressure too high
Check compressed air manifold pressure gauge. If the pulsing air
pressure is over 100 psig the filter bags may flex excessively and allow
fine dust to pass through the bag material.
Worn filter bags
Inspect the filter bags for wear. Thin worn bags may not stop fine dust
when flexed by a compressed air pulse.
Residual dust
If dust has migrated into the clean air plenum because of a dropped filter
bag, torn filter bag or a hole in tube sheet, etc., the pulsing air may stir
up the dust and allow it to escape into the clean air exhaust after each
pulse. Residual dust may also be driven down inside the filter bags by
the pulsing air. If the filter bags are filled with several inches of dust
clean both the clean air plenum and the filter bags to avoid further
problems.
Short Filter Bag Life
This is often a complicated problem to diagnose and we recommend
calling the factory for advice. The following list may be helpful in
performing some preliminary checks:
Temperature
Operating Temperature above the recommended limit of the filter bag
material.
6-4