Imperforate bowl: centrifugal separators – With means for furnishing auxiliary fluid to material or... – Liquid
Patent
1995-07-13
1997-02-11
Cooley, Charles E.
Imperforate bowl: centrifugal separators
With means for furnishing auxiliary fluid to material or...
Liquid
494 35, 494 37, 494 56, 494 80, B01D 4300, B04B 1100
Patent
active
056015232
ABSTRACT:
A centrifuge bowl is used for separating particulate materials of different specific gravity and has a first generally frusto-conical portion of the peripheral wall of the bowl over which the materials are caused to flow, and two axially spaced annular recesses downstream of the first portion and prior to an open mouth of the bowl. The feed materials pass over the peripheral wall causing heavier material to collect within the recesses and the lighter material to discharge through the open mouth. Each recess has a series of angularly spaced discharge ports controlled by pulsed valves. In front of each discharge port is provided a spherical body which directs the material to all sides around the body as it moves towards the discharge port in a generally conical shape. The conical shapes of adjacent discharge ports overlap to provide full discharge of all the material. The first recess acts as a main concentrate collector. The second recess is a secondary collector for materials missed by the first recess so that the material from the second recess is returned to the feed for a further separation.
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Battison Adrian D.
Cooley Charles E.
Thrift Murray E.
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