Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus
Patent
1980-03-03
1981-10-27
Nozick, Bernard
Gas separation
With nonliquid cleaning means for separating media
Solid agent cleaning member movingly contacts apparatus
55 97, 55341R, B01D 4600
Patent
active
042971136
ABSTRACT:
An apparatus wherein dust-laden gas is pumped into a housing having a plurality of tubular fabric filter bags. The gas flows through the bags to the interior of each tubular filter element and the solid particulates are deposited on the exterior surface of the fabric element. The clean gas from the interior of each filter element passes to the clean gas plenum via a thimble opening. Whenever one of the bags is ruptured, the gas velocity at the thimble opening increases dramatically due to the elimination of the resistance to gas flow by the fabric. A valve actuated by the sudden increase in gas velocity closes the thimble opening automatically and, thus, the contamination of the clean gas stream with solid particulates is prevented. The entire filtration apparatus is shut-down automatically by pressure control whenever, 25% or more of the fabric filter bags are ruptured and their thimble openings are closed by the respective valves.
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Ganiaris Neophytos
Nozick Bernard
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