Dry physical separation of particulate material
AssigneeCommonwealth Scientific and Industrial Research Organization
InventorsMaureen Teresa O'Connor, John Michael Frederick Clout, John Francis Gannon, Keith Russell Weller
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Abstract
An apparatus for dry physical separation of particulate material comprises an inclined separating surface having upper and lower edges, oscillation means for inducing non-linear oscillatory motion of the separating surface, and introduction means for introducing the particulate material onto the separating surface between the upper and lower edges.
Claims12
An apparatus for dry physical separation of particulate material, the apparatus comprising:
- an inclined separating surface having upper and lower edges,
- oscillation means for inducing non-linear oscillatory motion of the separating surface, and
- introduction means for introducing the particulate material onto the separating surface between the upper and lower edges.
An apparatus as claimed in any one of the preceding claims wherein the separating surface is mounted on a base which is mounted on or supported by springs.
A apparatus as claimed in any one of the preceding claims wherein one or more of the frequency of the non-linear oscillatory motion, the amplitude of the non-linear oscillatory motion and the angle of inclination of the separating surface are variable.
An apparatus as claimed in any one of the preceding claims wherein the separating surface is inclined at an angle of 1-20°.
An apparatus as claimed in any one of the preceding claims wherein the apparatus has a plurality of separating surfaces arranged for use in series.
A method for dry physical separation of particulate material, the method comprising the steps of:
- inducing non-linear oscillatory motion of an inclined separating surface having upper and lower edges, and
- introducing the particulate material onto the separating surface between the upper and lower edges
- whereby a first portion of the particulate material moves upwardly towards the upper edge and a second portion of the particulate material moves downwardly towards the lower edge.
Dependencies are inferred from the claim text.