Drying and gas or vapor contact with solids – Apparatus – With fluid current conveying of treated material
Reexamination Certificate
2006-02-07
2006-02-07
Lazarus, Ira S. (Department: 3749)
Drying and gas or vapor contact with solids
Apparatus
With fluid current conveying of treated material
C034S174000, C034S576000
Reexamination Certificate
active
06993856
ABSTRACT:
A jet spouted fluidized bed drier is described in which the bottom half of the drier chamber comprises a first lower conical part, and the top half of the drier chamber comprises a second upper conical part surrounding a conical grid located near to the top end of the second part. The drier chamber thus comprises two conical parts connected together at their wide ends. The result of this arrangement is that the collision zone becomes a toroid with an essentially triangular cross-sectional shape defined essentially by the conical internal surface of the top part and the conical outer surface of the conical grid. This revised structural arrangement has been found to be able to process materials which either cannot be processed, or cannot be processed efficiently, with known jet spouted fluidized bed driers. Additionally, this revised structural arrangement has been found to be able to process materials more efficiently, and to a lower desired final liquid content values.
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Amazouz Mouloud
Benali Marzouk
Her Majesty the Queen in right of Canada as represented by the
Lazarus Ira S.
O'Malley Kathryn S.
Shapiro Cohen
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