4 Mistakes That Produce High Pressure Drops in a Baghouse

English

4 Mistakes That Produce High Pressure Drops in a Baghouse


1. Inadequate pulsing pressure.

Pulsing pressure that is too low can lead to inadequate bag cleaning resulting in blocked airflows and increased energy cost. Baghouse compressed air manifold shouldn't drop more than 30% of maximum during pulsing.

2. Too much moisture in airflows.

Moisture in the dust stream often causes dust to stick together and form a thick, wet dust cake. Wet dust cake can seal pores in filtering materials leading to high pressure drops. Fabric filter baghouses should operate at a minimum of 20°F above the dew point

3. Improperly timed cleaning cycles.

Improperly timed cleaning cycles can allow collection of filtrate on filter bag surfaces. Different dust types also require different cleaning cycles and pressures. Consult with your baghouse or filter supplier for optimal settings.

4. Poor start-up and shut down procedures.

Inadequate warm up of baghouse when bringing it on line results in high moisture conditions that leads to sticky dust cake and subsequent pressure drops. Before shutting down be sure to clean bags. Dust on uncleaned bags can harden and create severe pressure drops upon restart.

FOR INDUSTRIAL USE ONLY

Not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations.