Imperforate bowl: centrifugal separators – Process
Patent
1993-06-03
1994-11-29
Scherbel, David A.
Imperforate bowl: centrifugal separators
Process
494 29, 494 56, 494 63, 494 80, 494902, B01D 4300, B04B 1100
Patent
active
053685415
ABSTRACT:
A method of separately extracting mercury and gold from mine tailings includes a centrifugal separator comprising a centrifuge bowl having a plurality of annular rings on the peripheral surface. An outer bowl or sleeve member provides a jacket from which water is injected through holes in the inner bowl into recesses between the annular rings. Feed materials containing gold and mercury are separated so that the gold and mercury is collected with the heavies in the recesses. The liquid mercury escapes through the holes in the inner bowl onto the inner surface of the outer bowl which is provided with an annular receptacle and is shaped to collect the mercury at the receptacle axially spaced from the open mouth of the bowl. A plurality of outlets in the annular receptacle allow the escape of the mercury into a secondary launder inside the outer launder for the main discharge materials from the open mouth. The liquid mercury is thus collected separately from the solid heavies within the bowl and separately from the discharged light material.
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Ade Stanley G.
Battison Adrian D.
Cooley Charles
Scherbel David A.
Thrift Murray E.
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