Declogging process for filtration installation and improved filtration installation
US4292053A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 4, 1980 |
| Grant date | Sep 29, 1981 |
| Priority date | — |
| Expiry date | Mar 4, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D46/90
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.