Method and apparatus for liquid treatment of pulp
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United States of America Patent
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May 1, 1990
Grant Date -
N/A
app pub date -
Jul 16, 1987
filing date -
Dec 13, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Fibre material is defibrated and dispersed in an air flow and introduced through an inlet (2) into a forming head (1). In the forming head (1) the inlet transforms to a single-curved convex surface (5), which leads all the way to an accept outlet (6). A screen (7) is located at adjustable distance from the curved surface (5) for dividing ingoing fibre/air flow into accept and reject. An outlet (10) for the reject is located behind the screen (7). At a distance of 10-150 mm from the accept outlet (6) a running air-pervious support (27) is located, on which the web precipitates.
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