Device for and method of unclogging filters

Details Device for and method of unclogging filters Device for and method of unclogging filters

1996-07-25

1998-12-01

Woo, Jay H.

Gas separation: processes

With timing of operation

95280, 55283, 55302, 96428, B01D 29068

Patent

active

058432060

ABSTRACT:
A device for unblocking filters by means of bursts of gas. The gas is kept in a tank (7) and supplied to filter-unclogging lances by lines (8). Each line (8) accommodates several valves (11 & 12) parallel with respect to their intakes and outlets. Controls (14) time all the valves to open simultaneously but for different lengths of time. The flow of gas supplied to the simple or compound filter is accordingly divided into subsidiary streams, one or more of which is discontinued before the other or others.

REFERENCES:
patent: 4433986 (1984-02-01), Borst
patent: 4500435 (1985-02-01), Muller
patent: 5348572 (1994-09-01), Jelich et al.
patent: 5531798 (1996-07-01), Engstrom et al.
patent: 5643455 (1997-07-01), Kopp et al.

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