Liquid purification or separation – Tangential flow or centrifugal fluid action – With movable means affecting flow
Patent
1991-09-16
1993-01-19
Dawson, Robert A.
Liquid purification or separation
Tangential flow or centrifugal fluid action
With movable means affecting flow
209144, 209211, 554591, 2105121, B01D 4512, B01D 17038
Patent
active
051804930
ABSTRACT:
Rotating hydrocyclone having an elongated cylinder with a side wall defining a separation chamber. A stationary inlet introduces a mixture of immiscible fluids into the chamber at high velocity in a tangential direction so that the mixture rotates about the axis of the chamber and produces a centrifugal force which tends to separate the fluids in accordance with their specific gravities. The cylinder is rotated about its axis to increase the rotation of the fluids and thereby increase the centrifugal force, with impeller vanes extending radially in an inward direction from the side wall of the cylinder near the inlet enhancing the rotation of the fluids with the cylinder. A first outlet is aligned with the axis of the cylinder for removing a fluid of lesser specific gravity from the chamber, and a second outlet is aligned tangentially with the cylinder for removing a fluid of greater specific gravity from the chamber. A tubular turbulence shield disposed coaxially of the chamber between the inlet and the first outlet and extends axially beyond the impeller vanes for isolating the first outlet from the effects of turbulence produced by fluids entering the chamber and interacting with the impeller vanes. The vanes are tapered to produce a gradual acceleration in the rotation of the fluids as they travel away from the inlet.
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Dawson Robert A.
Krebs Engineers
Reifsnyder David
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