Rotary screen liquid-solid separator

Liquid purification or separation – Filter – Movable medium

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Details

209284, B01D 3310

Patent

active

044262892

ABSTRACT:
A rotary screen separator is described for separating liquids and solids from a slurry. The rotary screen separator includes a cylindrical straining screen rotatably mounted for rotation about a substantially horizontal axis. The separator has a drive for rotating the straining screen at a constant low speed. The separator has a slurry feed means mounted within the interior of the straining screen for spreading the slurry into a thin curtain and directing the curtain downward against a downward moving portion of the straining screen to direct the slurry against the inner surface to enable liquid to pass through the screen to the outer surface and to push the solid materials forward along the inside surface to clean the inside surface. A compression roller is freely mounted within the straining screen for rolling with the moving screen to compress the solid material against the inner surface to remove additional liquid. An auger is mounted axially within the straining screen to engage the solid material and move the material axially to one end of the separator for disposal.

REFERENCES:
patent: 1531432 (1925-03-01), Haug
patent: 1717604 (1929-06-01), Haug et al.
patent: 3971720 (1976-07-01), Swanson et al.
Brochure: "End Slurry Worries" by Agri-Systems, Inc., Page from Apr. 1979 Issue of PIG International.

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