Apparatus for liquid treatment of pulp with vapor separation
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United States of America Patent
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-
Feb 28, 1989
Grant Date -
N/A
app pub date -
Nov 13, 1987
filing date -
Apr 8, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus having a liquid-permeable belt for receiving cellulose pulp, a liquid supply device for discharging treatment liquid on the cellulose pulp, and a container extending across the entire width of the belt for collecting treatment liquid penetrating the belt. The container is adapted to maintain a treatment liquid level at such a distance from the belt so that the formation of foam from treatment liquid is reduced. The container includes a liquid outlet for discharging the treatment liquid and a vapour outlet for discharging vapours and gases from the bottom of the container. The vapour outlet communicates with a passageway within the container, which passageway is formed as a pipe or is partially defined by a container wall. A deflector can be provided on the container for operatively deflecting treatment liquid away from the passageway.
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