Hydraulic annular washing column, and process for separating solids from a suspension
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United States of America Patent
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May 10, 2005
Issued Date -
N/A
app pub date -
Mar 19, 2004
filing date -
Sep 19, 2001
priority date (Note) -
Expired
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Abstract
An apparatus for separating solids from a suspension includes a hollow cylindrical column having a central axis therethrough. The column has an interior with a cross-section, perpendicular to said axis, that is constant along said axis, and that extends from a first end to a second end of the column; one central tube axially disposed in said column and extending from said one end toward said opposite end, said central tube having an outer wall of constant diameter, said cylindrical column and said central tube defining an annular zone between them, extending axially from said first end of the column to at least near said second end of the column; at least one filter in said outer wall of the said central tube, forming the only direct communication between the said annular zone and the interior of the tube and at least one filter in the outer wall.
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