BAG FILTER
Bag filters are devices that remove particulate matter from a air stream by passing the gas through a
porous fabric that traps the particles
Bag filters consist of a number of cylindrical bags made of various materials, such as woven or felted
fabrics, that are attached to a tube sheet in a housing. The air enters the housing and flows through
the bags, leaving behind the dust on the inner surface of the bags. The clean gas exits through the
outlet. The dust is periodically removed from the bags by a cleaning mechanism, such as reverse air,
pulse jet, or shaker, depending on the type of bag filter. The dust is then collected in a hopper and
disposed of or recycled.
Bag filters have high collection efficiency, low operating costs, low maintenance requirements, and
can handle a wide range of air temperatures and dust characteristics.