| 摘要 |
An apparatus for processing a particulate material containing an inflammable component, such as ethanol or another solvent, comprises a fluidized bed chamber (18) with a perforated bed plate (11) arranged therein. The particulate material may be fluidized on the bed plate (11) by supplying fluidizing air upwardly through perforations in the bed plate (11). In order to reduce the risk of explosion in the fluidizing air after its passage through the fluidized bed (19) formed on the bed plate (11), the apparatus comprises means (20) for feeding dilution gas into the fluidized bed chamber (18). The dilution gas is introduced into the fluidized bed chamber at least at one position spaced from the sidewalls of the chamber and preferably located centrally within the fluidized bed chamber (18) 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 (19). The explosion safe gas mixture may be discharged from the upper part of the processing chamber. |
