Liquid purification or separation – Processes – Separating
Patent
1995-05-17
1996-12-31
Popovics, Robert J.
Liquid purification or separation
Processes
Separating
210791, 210391, 210402, 210406, B01D 3306
Patent
active
055890792
ABSTRACT:
An assembly for recovering crystals from a slurry comprises a filtration unit including a rotatably mounted cylindrical filter, a slurry input for receiving slurry pressurized by a pump. The filtration unit has an outlet for discharging crystalline material separated from the slurry by the filtration unit. A first hopper connected to the filtration unit at the discharge outlet thereof is provided at a downstream side with a first valve unit which is in turn connected to a second hopper on a downstream side. A second valve unit is coupled to the second hopper at a downstream side thereof. Each of the valve units includes a rotatably mounted dome shaped valve member. The second hopper is provided with a vent extending to a gas storage tank. A conduit links the hoppers to one another for substantially equalizing pressure in the hoppers prior to an opening of the upstream valve during a discharge procedure. At least one of the hoppers is provided with a blower mechanism for removing crystalline material caked on a wall of the one of the first hopper and the second hopper.
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The American Heritage Dictionary 2nd College edition, .COPYRGT.1982 p. 622; Definition of "Hopper".
Crawley Michael F.
Park David B.
Baker Hughes Incorporated
Popovics Robert J.
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