TM 5-3895-374-24-2
FEBRUARY 1993
TABLE TWO
BAGHOUSE TROUBLE SHOOTING
SYMPTOM
CAUSE
REMEDY
1.
High baghouse
Bag cleaning mechanism
Increase cleaning frequency.
pressure drop, LOW
not adjusting properly
Clean longer
CFM
duration.
Not capable of removing
Send sample of dust to
dust from bags
manufacturer. Send
bag to lab for analysis
for blinding. Dry
clean or replace bags.
Excessive reentrainment
Continuously empty hop-
of dust
per. Clean row of bags
randomly instead of se-
quentially.
Incorrect pressure
Clean out pressure taps.
reading
Check hoses for leaks.
Check diaphragm in
gauge.
2.
Low baghouse pressure
Pressures will be less
Reduce fan speed
drop, High
with high temperature
CFM
gases or at high altitudes
Filter bags ruptured
Check for visible emission
from stock
Fan speed too high
Check drives
Ambient air infiltrating
Check all doors and
system
hatches. Check system
for leakage.
3.
Low baghouse pressure
Induced draft fan
Check fan rotation,
drop, Low,
failure
drives and speed.
CFM
Restriction in
Check all dampers.
duct before or after
Check fan damper
Check for dust plugging
ductwork.
Review duct design, (may
be more restrictive to
flow than expected)
Increase fan speed.
page 3-699
