Roll press for recovering liquid from pulp

Details Roll press for recovering liquid from pulp Roll press for recovering liquid from pulp

1986-12-11

1988-11-08

Falik, Andrew M.

Presses

Methods

With separation from material of liquid expressed

100110, 100112, 100116, 100121, 100211, 100295, B30B 502, B30B 922

Patent

active

047827475

ABSTRACT:
A continuous device and process for extracting liquid from mash, sludge or pulp bearing slurries. The device comprises a pair of parallel opposed and counter rotating rolls each consisting of a base roll member having circumferentially disposed grid member consisting of a multiplicity of upright standing leaves which interbolt to form a grid which encases the entire surface of the roll member. Raw material for deliquification is spread over the grid and compressed by an inflatable, reciprocating platen to express liquid through the grid into underlying collection channels. The rolls are then rotated toward each other to express additional liquid and produce a substantially dry material. The liquid collected in the collection channels is withdrawn by applying a negative pressure through orifices located at the axial extent of the rolls.

REFERENCES:
patent: 3693540 (1972-09-01), Dambrine
patent: 4350089 (1982-09-01), Braun
patent: 4387634 (1983-06-01), Balass

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