Apparatus for extracting with a liquid products which are part of solids
OwnerGuy V. Genieinventor
Life of this patent
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Abstract
An apparatus for the countercurrent extraction of liquids, forming a portion of solids, from such solids includes a rotary drum having an axis which is substantially horizontal. An inner partition is positioned within the drum and is substantially in the shape of a spiral formed by spiral turns having spaces therebetween. Each space has a raising element which lifts the solids from the liquid and a barrier over which the solids drop from the raising element and which stops the liquid and forces it back into an adjacent space during rotation of the drum. The raising element has a curvature such that the solids are lifted from the liquid and gradually drop in successive fractions over the barrier without sliding on the raising element.
Claims42
An apparatus for the extraction of materials from solids by countercurrent contact of said solids with a liquid, said apparatus comprising:
- a rotary drum having an axis which is horizontal or only slightly inclined;
- an inner partition positioned within said drum, said partition being substantially in the shape of a spiral including plural spiral turns with spaces therebetween;
- each said space having therein raising element means for lifting solids from a liquid;
- each said space having therein barrier means over which said solids drop from a respective said raising element means and for stopping and forcing said liquid back into another said space during rotation of said drum;
- and
- at least one of said raising element means having a curvature such that, during said rotation of said drum, said solids lifted from said liquid gradually drop in successive fractions over said barrier means without sliding on said raising element means.
Dependencies are inferred from the claim text.