Method of washing cellulosic pulp submerged in washing liquid

Details Method of washing cellulosic pulp submerged in washing liquid Method of washing cellulosic pulp submerged in washing liquid

1984-07-06

1987-05-12

Alvo, Steve

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With squeezing, compression, rubbing, kneading

68158, 68181R, 162 60, D21C 902

Patent

active

046647490

ABSTRACT:
Method for the washing of chemical pulp (1) by means of a fourdrinier wire machine in two or more stages (6,10; 6',10'; 6", 10"; 6'", 10'") while the pulp web runs on the wire (3). The liquid contained in the pulp web is displaced by a washing liquid. The pulp web and the wire (3) run, during the washing, as submerged in the washing liquid while the washing liquid flows through the pulp web and the wire. One embodiment comprises passing the washing liquid upwardly through the pulp and then downwardly through the pulp.

REFERENCES:
patent: 2995186 (1961-08-01), Montigny
patent: 3236724 (1966-02-01), Wahlstrom
patent: 3938206 (1976-02-01), Strasger-Johannessen
patent: 4046621 (1977-09-01), Sexton
patent: 4549415 (1985-10-01), Justus

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