Method of controlling wood pulp production in a chip refiner
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United States of America Patent
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Nov 26, 2013
Grant Date -
Jun 7, 2012
app pub date -
May 26, 2010
filing date -
Jun 1, 2009
priority date (Note) -
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Abstract
A method has been developed that estimates from the on line measurements of readily available process variables the proportion of the mass of fiber in the refining zone of a chip refiner relative to the mass with a full refining zone. This estimate of the filling factor is used to determine the margin available to load the refiner and the control action needed to avoid abnormal operation.
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