Three stage centrifuge and method for separating water and solid

Details Three stage centrifuge and method for separating water and solid Three stage centrifuge and method for separating water and solid

1991-03-29

1992-10-20

Dawson, Robert A.

Liquid purification or separation

Processes

Separating

210 97, 210178, 2103601, 210369, 210378, 210739, 210774, 210781, 494 52, 494 53, B01D 2126, B04B 120, B04B 304

Patent

active

051567512

ABSTRACT:
A three stage centrifuge especially adapted to the separation of oil, water, and solid particles in an emulsion. As an example, the centrifuge may be used to separate sediment and water from a petroleum product such as crude oil. The three stage centrifuge includes a rotatable bowl that spins the emulsion to separate the fluid oil and water into separate pools within the bowl. The solid particles are also moved radially outward within the rotatable bowl by centrifugal force. A conveyor auger contacts the solid particles and discharges the solids from the rotatable bowl through a solids discharge port. Oil discharge tubes contact the oil pool confined between oil baffle plates on the conveyor auger and allow the oil to be discharged from the rotatable bowl. Water weirs contact the water pool and allow the water to be discharged from the rotatable bowl.

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