Declogging process for filtration installation and improved filt

Details Declogging process for filtration installation and improved filt Declogging process for filtration installation and improved filt

1980-03-04

1981-09-29

Lacey, David L.

Gas separation

Means within gas stream for conducting concentrate to collector

55273, 55283, 55287, 55302, B01D 4604

Patent

active

042920531

ABSTRACT:
The invention relates to filtration apparatus and to a process for a filtration installation comprising several filtration cells equipped with at least one filtering element through which passes a current of dust-laden gas, this process consisting in isolating the filtration cell to be declogged, then in proceeding with declogging the filtering element(s) of this cell, and wherein further, after having isolated the filtration cell and before proceeding with the declogging thereof, it is scavenged by a counter-current of an inert gas, this counter-current scavenging being carried out under conditions such that the inert gas completely renews the atmosphere of this cell, without causing the layer of dust deposited on the upstream face of the filtering element(s) of said cell to be detached.

REFERENCES:
patent: 3178868 (1965-04-01), Gibby
patent: 3212237 (1965-10-01), Wright
patent: 3893833 (1975-07-01), Ulvestad
patent: 4046526 (1977-09-01), Phillippi

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