Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1983-02-28
1985-02-19
Lacey, David L.
Gas separation
Means within gas stream for conducting concentrate to collector
55 96, 55283, 55287, B01D 4604
Patent
active
045003262
ABSTRACT:
An improved method of sequentially cleaning filter elements (14) housed in a plurality of filter chambers (12) collectively forming a fabric filter collection apparatus (10) wherein the cleaning operation is controlled in response to an upper limit of pressure differential across the dust collection apparatus. Whenever the pressure differential across the dust collection apparatus (10) reaches the upper limit value, one of the chambers (12) is isolated, the filter elements (14) housed therein are cleaned, and then the isolated chamber is returned to service. Each of the individual chambers (12) is isolated in sequence and the filter elements therein cleaned with the interval between consecutive isolations and cleanings being the time required for the pressure differential across the dust collection apparatus (10) to again reach the upper limit value of pressure differential.
REFERENCES:
patent: 2576650 (1951-11-01), Wallin
patent: 2633206 (1953-03-01), Bruckner
patent: 3073097 (1963-01-01), Halleit et al.
patent: 3893833 (1975-07-01), Ulvestad
patent: 4277255 (1981-07-01), Apelgren
patent: 4384874 (1983-05-01), Dattilo
Habelt William W.
Lacey David L.
The Air Preheater Company, Inc.
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