Bag house is an air pollution control device that removes particulates out of air or gas released from commercial processes or combustion for electricity generation. Bag houses come in 4 main design classifications based on “How the bags are cleaned”; in other words, how the dust cake accumulation is removed and “managed”:

1.Pulse Jet System:

Method:

Uses high-pressure air directed down into the clean side of a filter bag in order to remove the dust cake from the surface of the media. Airflow:-This cleaning system can operate with airflow still going through the bag to the exhaust fan (on-line cleaning).

2.Shaker Style System:

Method:

Physically shakes the bags in order to mechanically release the dust cake. Airflow:-This style of cleaning method requires the bag “module” or compartment to be isolated from the gas stream to the exhaust fan (off-line cleaning).

3.Reverse Air System:

Method:

Physically collapses the bags in order to mechanically “shear” the dust cake from the bag surface. Airflow:-This style of cleaning method requires the bag “module” or compartment to be isolated from the gas stream to the exhaust fan (off-line cleaning).

4.Combinations and variations on the above 3:

Shaker with Reverse air assist: (off-line cleaning)

Traveling manifold reverse air: (on-line cleaning)

Plenum pulse: usually off-line