Sedimentation tank having a rotary rake structure

Details Sedimentation tank having a rotary rake structure Sedimentation tank having a rotary rake structure

1975-07-07

1977-04-12

Granger, Theodore A.

Liquid purification or separation

Gravitational separator

Mechanical constituent mover

B01D 2318

Patent

active

040174026

ABSTRACT:
A continuously operating Sedimentation Tank having a Rotary Rake Structure equipped with sludge engaging blade means constructed and arranged so as to induce thin sludge or supernatant from an upper or superjacent zone to enter the bottom zone of a bed of packed sludge solids, thereby reducing friction between the mass being moved by the blades and a layer underneath of residual material on the tank bottom, thereby reducing the torque requirement of the rake structure for moving the sludge.

REFERENCES:
patent: 1879680 (1932-09-01), Hartley et al.
patent: 2006825 (1935-07-01), Downes
patent: 2563622 (1951-08-01), Scott
patent: 2779471 (1957-01-01), Knapp
patent: 2980934 (1961-04-01), Steindorf
patent: 3494462 (1970-02-01), Bayd
patent: 3498467 (1970-03-01), Hollebrandt
patent: 3498468 (1970-03-01), Raynor
patent: 3539051 (1970-11-01), Stone
patent: 3628670 (1971-12-01), McGuire
patent: 3807560 (1974-04-01), Penz et al.

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