Separation of pulp flow
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United States of America Patent
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-
Jun 8, 1982
Grant Date -
N/A
app pub date -
Dec 15, 1980
filing date -
Dec 18, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The method is intended for separating a flow of pulp containing impurities of coarse particles, partly light and partly heavy particles, by means of a main sieve or the like, into at least one pulp flow and one coarse reject flow. The coarse reject flow is separated by a hydrocyclone separator of a known type into a pulp flow, a light reject flow and a heavy reject flow. Advantageously, the light reject flow is separated by a bow sieve into a flow enriched in light particles and a flow enriched in fibers and which may be returned to the main sieve.
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