Dust Collectors,
BAGHOUSE SIZING
A baghouse that is improperly sized can restrict a rotary dryer’s production capability. A correctly sized baghouse will allow the dryer to vent gas to the baghouse from the rotary dryer at the required flow rate and sustain production.
HOW IT WORKS:
A baghouse cleans dust particles from the dryer’s gas flow via the dust accumulated on the bag and not by the bag cloth itself. Inches of Water Colum (WC) is a measurement we use for resistance to air flow. The proper amount of dust on the bag creates a 4″ WC differential pressure across the bags (or “pressure drop across the tubesheet”). The baghouse keeps the dust coating to the correct thickness on each bag by regulating how often it pulses.
TOO SMALL A BAGHOUSE = LOWER PRODUCTION RATE:
A baghouse that is too small can raise the differential pressure across the tubesheet even with the baghouse pulsing as fast as it can.
If the dust cannot be held at the proper thickness:
1. An increase in WC will occur
2. Air flow through the system chokes down
3. the fan unable to pull gas through the baghouse
4. the drying system’s production will fail.
If this happens, the plant manager has to stop the drying system. Continued pulsing cleans out the baghouse before the crew can restart drying at a lower production level. If a baghouse is undersized, you must decrease the production of the drying system. The bags must build up and maintain a proper level of dust.
START YOUR BAGHOUSE ORDER FIND PARTS FOR YOUR BAGHOUSE