Solid material comminution or disintegration – Processes – Subjecting material to impact by moving comminuting surface
Patent
1998-11-11
2000-02-15
Husar, John M.
Solid material comminution or disintegration
Processes
Subjecting material to impact by moving comminuting surface
241 28, 2412613, 241297, B02C 712
Patent
active
060243082
ABSTRACT:
A refiner for refining material has a refiner disc arrangement whereby the outermost opposed refiner disc annuli have a particular corresponding refiner surface arrangement. A carrier element has a mounting surface, a central axis, and defines a plane generally perpendicular to its axis of rotation. An annular first disc is carried on the mounting surface concentrically relative to the central axis and has a first refiner surface facing outward relative to the mounting surface. A plurality of refiner bars protrudes axially from and extends generally radially along the refiner surface. A second carrier element is spaced from and confronts the first carrier element and has a second mounting surface thereon. An annular second disc is carried on the second mounting surface concentrically relative to the central axis and has a second refiner surface confronting the first refiner surface. A plurality of second refiner bars protrudes axially from and extends generally radially along the second refiner surface. A refining plane is defined between the first and second refining surfaces that is angled relative to the generally perpendicular plane and provides a generally consistent width refining gap over a substantial portion of the refining surfaces.
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Bartels Patrick J.
Garasimowicz Gregory A.
Lofgren Mattias E.
Savujarvi Petri K.
Husar John M.
J&L Fiber Services, Inc.
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