Solid material comminution or disintegration – Apparatus – Cooperating comminuting surfaces
Patent
1995-11-14
1998-10-20
Husar, John M.
Solid material comminution or disintegration
Apparatus
Cooperating comminuting surfaces
241297, B02C 712
Patent
active
058234535
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.
REFERENCES:
patent: 201784 (1878-03-01), Hess
patent: 269015 (1882-12-01), Conklin
patent: 852164 (1907-04-01), Bussinger
patent: 1169228 (1916-01-01), Barker
patent: 1394803 (1921-10-01), Beall
patent: 1556323 (1925-10-01), Garza
patent: 1556870 (1925-10-01), Nelson
patent: 1595282 (1926-08-01), Bauer
patent: 1609717 (1926-12-01), Holland-Letz
patent: 1609718 (1926-12-01), Holland-Letz
patent: 2425024 (1947-08-01), Beveridge et al.
patent: 3149792 (1964-09-01), Textor
patent: 3321809 (1967-05-01), Younk
patent: 3473745 (1969-10-01), Shook et al.
patent: 3674217 (1972-07-01), Reinhall
patent: 3815834 (1974-06-01), Gilbert
patent: 3880368 (1975-04-01), Matthew
patent: 4005827 (1977-02-01), Frair et al.
patent: 4023737 (1977-05-01), Leider et al.
patent: 4036443 (1977-07-01), Saltarelli
patent: 4039154 (1977-08-01), Peterson
patent: 4355768 (1982-10-01), Johansson
patent: 4423845 (1984-01-01), Frazier et al.
patent: 4529137 (1985-07-01), Matthew et al.
patent: 4531681 (1985-07-01), Matthew et al.
patent: 4570862 (1986-02-01), Kirchner
patent: 4586662 (1986-05-01), Goldenberg et al.
patent: 4614309 (1986-09-01), Goldenberg
patent: 4619414 (1986-10-01), Kirchner et al.
patent: 4620675 (1986-11-01), Kirchner
patent: 4625926 (1986-12-01), Kirchner
patent: 4635864 (1987-01-01), Peterson et al.
patent: 4712745 (1987-12-01), Leith
patent: 4772358 (1988-09-01), Virving
patent: 4953796 (1990-09-01), Virving
patent: 5046672 (1991-09-01), Demler
patent: 5165592 (1992-11-01), Wasikowski
patent: 5178339 (1993-01-01), Pilao
patent: 5181664 (1993-01-01), Kohler
patent: 5203514 (1993-04-01), Mokvist et al.
Husar John M.
J & L Fiber Services Inc.
LandOfFree
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