Solid material comminution or disintegration – Processes – With application of fluid or lubricant material
Patent
1998-05-26
1999-11-02
Husar, John M.
Solid material comminution or disintegration
Processes
With application of fluid or lubricant material
241 21, 241 27, 241 28, B02C 712, B02C 1900
Patent
active
059754389
ABSTRACT:
A disc refiner for thermo-mechanical pulping of wood chips or other fiber source for papermaking has annular refiner discs with a plurality of axially protruding radially extending curved refiner bars. Curved bars in the refiner zone should resist erosion and corrosion. Each disc has a region of bars which curve in the direction of rotation, and a region which curves away from the direction of rotation. Two identical refiner discs are mounted to rotate with respect to one another. Because of the bar curvature, processed stock experiences different angles of bar intersection as the pulp progresses from the inside of the refiner plate to the outside of the refiner plate, yielding a reduced hit on the pulp where opposed refiner bars curve in opposite directions. Where refiner bars on opposed plates curve in a like direction as they pass over one another there is a hold back action on the stock in that region.
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Japanese Office Action No. 124729 with English translation. (No Date Given) .
Husar John M.
J & L Fiber Services Inc.
LandOfFree
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