Process of separating using a rotating screen
AssigneeECC International Limited
InventorsThomas R. Jones, Reginald L. Phillips
Life of this patent
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Abstract
A method of and apparatus for continuously separating relatively coarse particles from a suspension of mixture of particles in a liquid by impinging the suspension upon the surface of a rotating screen so that liquid containing the relatively fine particles passes through the screen and the relatively coarse particles are flung radially outwardly to the periphery of the screen the preferred screen is a woven wire mesh with aperture sizes conveniently in the size range from about 0.020 mm to about 2.00 mm.
Claims15
A process for continuously separating coarse particles and fine particles from a suspension of a mixture of particles in a liquid wherein the suspension is caused to impinge upon a surface of a screening medium which is rotating in its own plane about a vertical axis so that the coarse particles are retained on the surface of the screening medium and are caused to move radially outwardly towards the periphery of the screening medium while the liquid containing relatively fine particles passes through the screening medium wherein the screening medium comprises a pervious material which is substantially planar and whose periphery lies in the same plane as the surface of the screening medium and the coarse particles are caused to pass unencumbered outwardly and downwardly from the periphery of the screening medium.
A process for continuously separating coarse particles and fine particles from a suspension of a mixture of particles in a liquid wherein the suspension is caused to impinge upon the surface of a substantially planar screening medium which is rotating in its own plane about a substantially vertical axis so that the coarse particles are retained on the surface of the screening medium and are caused to move rapidly outwardly towards the periphery of the screening medium while the liquid containing the fine particles passes through the screening medium into an open top hollow drum which is disposed beneath the screening medium and rotates about a substantially vertical axis, wherein said liquid containing the fine particles passing through the screening medium is deposited on a closed lower end of the drum and said liquid in the drum is displaced from the drum during rotation thereof in a direction radially outwardly of said drum's rotational axis through an array of holes provided in the periphery of the drum.
Dependencies are inferred from the claim text.