Method for filtering gas and cleaning of filter bags

Details Method for filtering gas and cleaning of filter bags Method for filtering gas and cleaning of filter bags

1974-10-21

1976-06-29

Nozick, Bernard

Gas separation

Means within gas stream for conducting concentrate to collector

55 97, 55302, 55341NT, 55378, 55528, B01D 4604

Patent

active

039664341

ABSTRACT:
A process for removing solids from a stream of gas comprising passing a solids-laden gas through a woven fabric filter bag, which bag is installed with longitudinal slack, wherein, during filtration, the differential pressure across the bag causes the bag to expand outwardly. During clean-off, the exhaust valve of the apparatus is closed and, as the differential pressure across the bag approaches zero, the bag becomes slack and the solids deposited on the filter surface disengage therefrom and drop, by gravity flow, to a collection bin. The exhaust valve is then opened and the step of removing solids from the gas stream is resumed.

REFERENCES:
patent: 1508367 (1924-09-01), Matlock
patent: 2276805 (1942-03-01), Tolman, Jr.
patent: 3057137 (1962-10-01), Perlis et al.
patent: 3520109 (1970-07-01), Caskey
Teflon Fiber -- by Du Pont In Chem. Engr. 5/5/69.

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