Process and device to drain a fibrous pulp suspension
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United States of America Patent
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-
Mar 28, 2000
Grant Date -
N/A
app pub date -
Aug 29, 1997
filing date -
Aug 30, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Process and device for draining a fibrous pulp suspension. The process may include positioning two surfaces to converge in a downstream direction, feeding the fibrous pulp suspension between the two converging surfaces, driving at least one of the two converging surfaces to move the suspension with a relative translational velocity, and draining the fibrous pulp suspension through each of the two surfaces. The device may include two arcuate surfaces positioned to form converging surfaces. One of the two arcuate surfaces may include a drivable, pivotable, and rotatable cylinder having an outer sleeve with openings, the other of the two arcuate surfaces may include a screen positioned to be guided around at least a portion of the outer sleeve. The screen and the openings may form drains for draining the fluid pulp suspension.
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