Importance

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Abstract

The present invention provides an apparatus for the processing of a particulate material, the apparatus comprising:

a processing chamber having one or more inlets for admitting particulate material to be processed and one or more outlets for processed particulate material;the processing chamber comprising an annular treatment zone and a plurality of processing fluid inlets arranged in a base of said annular treatment zone and configured so that, in use, jets of processing fluid pass into the annular treatment zone through the plurality of processing fluid inlets to establish a spiral flow of particulate material in the annular processing zone;wherein said one or more outlets for processed particulate material are located in the base of said annular treatment zone and surrounded by said plurality of processing fluid inlets so that the spiral flow of particulate material circulates around said one or more outlets;the processing chamber further comprising means for deflecting a portion of the spiral flow of particulate material in the annular processing zone radially inwards from said spiral flow so that said particulate material leaves the processing chamber through said one or more outlets for processed particulate material.

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First Claim