Self-cleaning sedimentation unit

Details Self-cleaning sedimentation unit Self-cleaning sedimentation unit

1994-09-22

1996-02-13

Upton, Christopher

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Discharge of treated material

210527530, B01D 2118

Patent

active

054909201

ABSTRACT:
A gravity sedimentation unit for thickening or clarifying a solids containing liquid is disclosed. The unit comprises a settling basin for receiving the feed and permitting the suspended solids to settle. A pump moves around the basin to discharge solids accumulating at the bottom. Support and vertical positioning of the pump is effected by a pump suspension which comprises a winch and a solids level detector. Horizontal positioning of the pump is effected by a bridge-type crane including a traverse with a drive for moving the traverse over the basin and a motorized trolley for moving the pump suspension back and forth along the traverse. Control of the pump travel is effected by a controller programmed to carry out regular search patterns through the basin.

REFERENCES:
patent: 2880877 (1959-04-01), Sambraus
patent: 3591492 (1970-05-01), Neuspiel
patent: 3807560 (1974-04-01), Pentz et al.
patent: 3822788 (1974-07-01), Dunkers et al.
patent: 3969249 (1976-07-01), Dodd et al.
patent: 4094785 (1978-06-01), Booty
patent: 4190541 (1980-02-01), Wade et al.
patent: 4687576 (1987-08-01), Hardison
Dorr-Oliver company engineering brochure.

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