Arrangement in connection with screening apparatuses
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United States of America Patent
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Apr 17, 2012
Grant Date -
Feb 12, 2009
app pub date -
Mar 16, 2007
filing date -
Mar 17, 2006
priority date (Note) -
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Abstract
An arrangement in screening apparatuses of the pulp and paper industry, including a conduit for removing reject formed in a screening process. The circulation of material is arranged between the reject removal conduit and the interior of the screening apparatus from the removal conduit into the interior of the screening apparatus via a conduit external to the screening apparatus. When such a by-pass flow is arranged for pulp via external circulation, heavy particles in the layer being diluted are allowed to be separated onto the bottom of the reject removal conduit and therethrough e.g. into a separate junk trap.
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