Solid bowl decanter centrifuges

Details Solid bowl decanter centrifuges Solid bowl decanter centrifuges

1979-08-03

1981-11-03

Gilreath, Stanley N.

Chemistry: physical processes

233 14R, 233 27, B04B 100, B04B 300, B04B 500

Patent

active

042981603

ABSTRACT:
A solid bowl decanter centrifuge of the scroll discharge type comprises a solid bowl which rotates at a first speed, and a scroll conveyor which is rotated within the bowl at a second, slightly different speed for conveying separated solids to a solids discharge end of the bowl. The suspension to be centrifuges, substantially unmixed with a flocculant, is introduced by a stationary feed pipe into a feed compartment which is a radial passage in the conveyor. The feed compartment provides high turbulence and shear forces which mix and expel the suspension and flocculant into the bowl before flocs have formed.

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