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Filter bags used in Pulse jet dust collector is the most prominent component of this type of dust collector. It is the heart of the dust collection process. The filter bags in the pulse jet dust collector are supported on the interior cage and are hung from a tube sheet near the top of the baghouse. The dirty air enters the tube from any point from the bottom and is passed through the filter from the outside to the turn inside of the bag. The filter bags absorb the dirt and pass the filtered air in the atmosphere. Excessive use of these filters allows dirt to stick around them and a stage arrives where the filters are chocked with dirt. The dirt of the filter bag is removed by entering a pulse of negative pressure compressed air which cleans the filter and the dirt cake falls down in the hopper. The excess pressure of the air can torn the filter. So to give the air a fixed path to travel through the bag a conical-shaped funnel is known as a venture. Also, a cage is placed inside the bag to avoid any disorientation caused by the difference in pressure. Bags should be cleaned regularly to avoid choking of the filter bags
. Choking will decrease the efficiency of the filter bag and the air will not get properly filtered and will have some dirt in it.
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