What is a pulsejet cleaned Baghouse?
A Baghouse is a type of environmental technology that removes harmful airborne particles generated by industrial processes. These particles can include things like cement dusts, heavy metals like mercury, soot, or other harmful chemicals.
It works by having a fan create a sucking force that pulls the dirty air through ductwork to the inside of the baghouse, where it is then pulled through a fabric filter (or filter bag) that captures the harmful dusts, before exhausting the now clean air into the atmosphere.
A Pulse-Jet Baghouse is a design where the bags are periodically cleaned by sending a burst of high pressure compressed air back down through the filter bag from above the causes the bag to inflate, breaking off the excess dust from the surface letting it fall into the hopper below to be disposed of later.
For more information about the different types of baghouse designs, please see the article The Encyclopedia of Dust Collection Systems
During cleaning, a pulse of compressed air is directed into the bag (the reverse flow direction), inflating the bag to cause fabric / cake deflection and separation. Cleaning effectiveness and costs can be adjusted by changes to the pulse duration and interval, compressed air pressure and volume. An interval timer or differential pressure can activate the cleaning mode.
