Skimmer for square settling tanks

Details Skimmer for square settling tanks Skimmer for square settling tanks

1976-08-25

1977-08-23

Granger, Theodore A.

Liquid purification or separation

Gravitational separator

Mechanical constituent mover

210529, B01D 2118

Patent

active

040439208

ABSTRACT:
In a continuously operating square settling tank, the provision of scum skimming devices wherein a pivotally mounted corner exploring skimmer member is swingable in a predetermined horizontal plane, while kept in contact with the peripheral scum baffle during rotation of the supporting rake structure. This skimmer member forms with the scum baffle a scum collecting pocket whereby when the thus collected scum is pushed up along the slope of a ramp, it is trapped and thereby contained on the ramp for delivery into a receiving box connected to the ramp.
The scum collecting effectiveness of the skimmer member may be enhanced by the additional provision of a directional skimmer blade cooperatively so related to the swingable skimmer member, that floating scum material is thereby guided into said collecting pocket.

REFERENCES:
patent: 1457794 (1923-06-01), Piper
patent: 2238024 (1941-04-01), Linch
patent: 2261487 (1941-11-01), Scott et al.
patent: 2863564 (1958-12-01), Lind et al.
patent: 3465887 (1969-09-01), Cookney
patent: 3770132 (1973-11-01), Quest et al.

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