Method and means for separation of liquids from a mixture of solids and liquids
AssigneeKlockner-Humboldt-Deutz Aktiengesellschaft
InventorWilhelm Bongert
Life of this patent
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Abstract
The invention relates to a method for separation of liquids from a mixture of solid matter and liquids by supplying said mixture to a separation member which is permeable by liquid, simultaneously applying a vacuum to the underside of said separation member, and subjecting said separation member to vibrations. The invention also includes a device for carrying out said method.
Claims8
A method for the separation of liquids from a solid liquid mixture comprising the steps:
- depositing a solids liquid mixture on a separating oscillating conveyor surface permeable to the liquid with the material moving in a conveying direction;
- applying a vacuum on the undersurface of the separating surface;
- and increasing the vacuum in the conveying direction of material movement on the separating surface.
A device for the separation of liquids from a mixture of solids and liquids comprising in combinatioin:
- means defining a closed separation chamber having a first separation zone and a second separation zone;
- a generally horizontally extending permeable separation surface along the bottom of said chamber and having openings in said surface of a size to permit penetration of liquid, the openings in said first zone being larger than the openings in said second zone;
- a first vacuum chamber beneath said first zone;
- means for controlling the vacuum in said first chamber;
- a second vacuum chamber beneath said second zone;
- means for controlling the vacuum in said second chamber to be higher than the vacuum in said first chamber;
- means for supplying a mixture of solids and liquid onto said separation surface in said first zone;
- first means for collecting liquid beneath said first zone;
- second means for collecting said liquid beneath said second zone;
- a recirculating conduit means connected to said first and second collecting means for delivering material from the collecting means to said chamber between said zones onto material above said surface;
- a cyclone separator in said circuit for separation of liquid from the material returned to said material above said surface;
- a vibrating means connected to vibrate said surface and to cause movement of the material from said first to said second zone;
- a discharge opening at a discharge end of the second zone;
- means to control the flow through said discharge end;
- means for directing heat into the closed chamber above the surface;
- and means for pressurizing said chamber above the surface.
A device for the separation of liquids from a mixture of solids and liquids comprising in combination:
- an oscillating conveyor having a generally horizontal permeable separating surface for receiving a solids liquid mixture on its upper surface in a conveying direction;
- said permeable separating surface having openings which decrease in size in the conveying direction;
- means for feeding onto that portion of said separating surface which has the larger openings a mixture of solids and liquid;
- means beneath said surface for the production of a vacuum drawing liquid downwardly from the solids with said vacuum increasing along said surface in said conveying direction;
- and means on the underside of the separating surface for the withdrawal of liquid which passes downwardly.
Dependencies are inferred from the claim text.