Process for singulating cellulose fibers from a wet pulp sheet
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United States of America Patent
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Jul 15, 2008
Grant Date -
Jul 8, 2004
app pub date -
Jan 2, 2003
filing date -
Jan 2, 2003
priority date (Note) -
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Abstract
A hammermill for singulating cellulosic fibers from a wet pulp sheet includes a cylindrical housing, a feed slot with a breaker bar positioned therein and a rotor mounted for rotation in the housing. Feed rolls are provided to feed a sheet of pulp into the feed slot upstream of the breaker bar. A plurality of hammers are mounted on the rotor. Air is introduced into the hammermill housing tangentially downstream from the second feed slot. An air outlet is positioned tangentially on the housing downstream from the air inlet to allow air and singulated fibers to escape. A process for producing singulated fibers includes wetting a fiber sheet, milling the fibers in the hammermill, and drying the fibers. The singulated fibers have a low knot content.
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