Declogging process for filtration installation and improved filtration installation
AssigneeAir Industrie
InventorJean Remillieux
Life of this patent
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Abstract
The invention relates to an apparatus and a declogging process for filtration installation for dust-laden gases presenting reducing properties, consisting in taking dust-free gas at the outlet of the filtration installation, oxidizing this gas and using the gaseous mixture resulting from this oxidization to declog the filtering element(s) of said installation.
Claims10
In a method of pneumatically declogging a filtering element of a filtration installation in which dust-laden gas having reducing properties is passed through the filtering element whereby dust is deposited on the filtering element and dust-free gas issues therefrom and in which a flow of inert gas is periodically used to dislodge and deposited dust, the improvement wherein said inert gas is obtained by oxidizing a portion of the dust-free gas issuing from the filtering element.
In filtration apparatus comprising filtering element means for filtering dust-laden gas having reducing properties, means for passing said gas through said filtering element means whereby dust is deposited on said filtering element means and dust-free gas issues therefrom, and means for periodically introducing a flow of inert gas through said filtering element means in a direction opposite to the direction of flow of said dust-laden gas to dislodge said deposited dust, the improvement which comprises means for oxidizing a portion of the dust-free gas issuing from the filtering element means to obtain said inert gas, and means for supplying the oxidized, inert, gas, to said inert gas flow introducing means.
Dependencies are inferred from the claim text.