CAMCORP Baghouse Collector - Manual (Page 48)

CAMCORP, INC.
Phone: 913-831-0740 Fax: 913-831-9271
www.camcorpinc.com
Troubleshooting the Dust Collector (continued)
Bags Loaded with Dust
This is a condition known as blinding. If the dust is dry see the next four
paragraphs below. If the dust is wet see the paragraphs below on “Water
Leaks” and “Condensation”.
Dust Not Discharging from the Hopper
Check hopper for over-loading or bridging across the dust discharge.
Correct by repairing dust discharge equipment, replacing with higher
capacity equipment, installing hopper vibrators, etc. as required to keep
the hopper empty.
Air Flow Too High
If the main airflow is too high to allow dust to drop off of the filter bags,
an excessive pressure drop across the dust collector will result and dust
will build up in the system. In many cases this high pressure drop in turn
leads to a reduction in the main air flow so that it is necessary to remove
the dust accumulation from the filter bags (and the rest of the system)
before measuring the main air flow volume.
Visually inspect the bags for heavy caking. If caking is evident see the
note below and take the necessary action to clean the bags. Next,
measure the main airflow with a pitot tube or equivalent device and
compare with the original volume for which the unit was designed. If the
flow is too high, cut back the main fan to prevent a recurrence of the
problem.
Particle Size and Dust Load
If possible, compare the dust particle size and loading with the original
design specifications. Finer dust may cause a higher pressure drop. Do
not hesitate to call CAMCORP as we have experience with many kinds
of dust.
Bags Too Tight
Bags that have shrunk on their cages may not flex sufficiently during the
compressed air pulse to loosen caked dust. If the bags were cleaned or
laundered pull a bag tight around its cage. You should be able to
“gather” a small fold of material between your fingers.
Water Leaks
Inspect the dust collector housing and ductwork for holes, cracks or
loose gasketing where water could enter the collector.
6-2