Liquid purification or separation – Tangential flow or centrifugal fluid action
Patent
1984-12-13
1986-01-07
Fisher, Richard V.
Liquid purification or separation
Tangential flow or centrifugal fluid action
210787, 209459, 209697, B01D 2126, B03B 552
Patent
active
045632790
ABSTRACT:
The invention relates to a spiral separator supported with its axis substantially vertically which is adapted to receive at an upper end thereof a pulp of water and minerals to be separated. The spiral separator includes a plurality of helical turns wherein each turn includes an inner portion and an outer portion. The outer portion is inclined upwardly relative to the inner portion. The invention is characterized in that the inner portion includes a first part and a second part wherein the second part is inclined upwardly relative to the first part at a steeper angle to horizontal than the first part throughout part of the length of the spiral separator. This feature provides a generally non-turbulent or laminar flow of pulp along the said part of the said spiral separator and thereby inhibits sand barring.
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Fisher Richard V.
Millard Wanda L.
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