Continuous countercurrent liquid-solids contactor

Details Continuous countercurrent liquid-solids contactor Continuous countercurrent liquid-solids contactor

1981-07-02

1984-03-06

Lacey, David L.

Chemical apparatus and process disinfecting, deodorizing, preser

Physical type apparatus

Means separating or dissolving a material constituent

422273, 422287, 422903, 134 65, 134132, 252627, 376310, B01D 1102

Patent

active

044353634

ABSTRACT:
An apparatus for continuously providing countercurrent liquid-solid contact. The preferred embodiment of the apparatus includes an Archimedes' screw in the form of a spiral and a distribution system which includes a central tube disposed along the axis of the spiral. The central tube includes a plurality of weirs and is in open communication with the spiral through a plurality of hollow spokes fixed at one end to the spiral and at the other end to the central tube.
Dissolving solution is distributed by the distribution system to the spiral where it encounters nuclear material moving upward due to the pumping action of the spiral. The dissolved material moves counter current to the nuclear material and removed near the bottom of the apparatus.

REFERENCES:
patent: 2746950 (1956-05-01), Lolli
patent: 2952588 (1960-09-01), Rinderer
patent: 4049386 (1977-09-01), Gillain
patent: 4098648 (1978-07-01), Kraemer et al.
patent: 4183806 (1980-01-01), Giffard
patent: 4230675 (1980-10-01), Yarbo

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