Sedimentation tank having a rotary rake structure

Liquid purification or separation – Gravitational separator – Mechanical constituent mover

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Details

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.

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patent: 2563622 (1951-08-01), Scott
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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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