Importance

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Abstract

An apparatus for processing a particulate material containing an inflammable component, such as ethanol or another solvent, comprises a fluidized bed chamber with a perforated bed plate arranged therein. The particulate material may be fluidized on the bed plate by supplying fluidizing air upwardly through perforations in the bed plate. In order to reduce the risk of explosion in the fluidizing air after its passage through the fluidized bed formed on the bed plate, dilution gas is fed into the fluidized bed chamber. The dilution gas is introduced into the fluidized bed chamber at least at one position spaced from the side walls of the chamber and preferably located centrally within the fluidized bed chamber in order to obtain a substantially uniform mixing of the dilution gas with the fluidizing air including the inflammable component immediately above the fluidized bed. The explosion safe gas mixture may be discharged from the upper part of the processing chamber.

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First Claim