Traction-driven composite sludge raking mechanism for sedimentat

Details Traction-driven composite sludge raking mechanism for sedimentat Traction-driven composite sludge raking mechanism for sedimentat

1975-03-17

1976-05-25

Hart, Charles N.

Liquid purification or separation

Gravitational separator

Mechanical constituent mover

210531, B01D 2114

Patent

active

039591522

ABSTRACT:
A large sedimentation tank having a traction-driven composite sludge raking mechanism provided with lift capability, and comprising a rotary traction-driven drive arm of girder-like construction exposed above the liquid level, and draft-connected to an inner load yielding self-liftable rake arm operating in the central sludge accumulation zone in the tank, and also connected to an outer complementary rake structure operating in an outer annular zone to move sludge therefrom into the central accumulation zone.

REFERENCES:
patent: 1434596 (1922-11-01), Dorr
patent: 2122385 (1938-06-01), Scott
patent: 3241682 (1966-03-01), Cookney et al.
patent: 3295835 (1967-01-01), Klopper
patent: 3482704 (1969-12-01), Jablon
patent: 3498468 (1970-03-01), Raynor
patent: 3542207 (1970-11-01), Stansmore

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