Method of washing cellulosic pulp submerged in washing liquid
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United States of America Patent
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May 12, 1987
Grant Date -
N/A
app pub date -
Jul 6, 1984
filing date -
Sep 12, 1983
priority date (Note) -
Expired
status (Latency Note)
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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.
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