Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1977-06-03
1979-02-20
Sever, Frank
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
209144, 209211, 210512R, B01D 2126, B04C 504
Patent
active
041406320
ABSTRACT:
The invention provides a method and apparatus for thickening centrifugally separable fractions by the steps of providing a pressurized stream of a liquid suspension medium containing a fraction separated centrifugally from any other fraction, causing the stream of the suspension to flow in the form of an annular helical vortical flow, passing the stream of the suspension through a restricted opening, allowing the stream of the suspension to expand into a larger volume contained within a converging confining zone converging in the direction of stream flow and towards the discharge zone having a restricted opening of a size smaller than the size of the first-mentioned restricted opening, regulating the flow of the stream of the suspension to form and maintain the stream as a first vortex of the suspension flowing towards the discharge zone whereby a portion of the suspension reverses direction in the converging zone adjacent the restricted opening of the converging zone and forms a second vortex flowing towards the first-mentioned restricted opening, withdrawing a thickened suspension through the restricted opening of the discharge zone, and withdrawing the second vortex containing the suspension expressed by the thickening action through the first-mentioned restricted opening.
REFERENCES:
patent: 2920761 (1960-01-01), Freeman et al.
patent: 2927693 (1960-03-01), Freeman et al.
patent: 3337050 (1967-08-01), Labecki
patent: 3347372 (1967-10-01), Bouchillon
Consolidated-Bathurst Limited
Fincham Ian
Sever Frank
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