Apparatus for treating papermaking feedstock
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United States of America Patent
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Feb 28, 2012
Grant Date -
May 7, 2009
app pub date -
Nov 2, 2006
filing date -
Nov 4, 2005
priority date (Note) -
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Abstract
A papermaking raw material processor capable of reforming pulp in papermaking a process using cavitation includes a first pump 5 jets jet liquid and second pump 6 jets suspension containing; e.g., pulp fibers into a processing unit inside which cavitation is generated by generation of a jet stream. Inside processing unit 2, a jet stream generates cavitation to carry out a reforming processing in which ink, or the like, is removed from the fibers by a blast resulting from collapse of cavitation bubbles generated there. The liquid after reforming processing is returned to second tank 4, except for a part of it fed to downstream steps, while the suspension is processed, as circulated between processing unit 2 and second tank 6.
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