Apparatus and method for refining pulp stock

Details Apparatus and method for refining pulp stock Apparatus and method for refining pulp stock

1993-07-15

1995-03-21

Watts, Douglas D.

Solid material comminution or disintegration

Processes

Wood and similar natural-fibrous vegetable material

241 37, 2412392, B02C 714

Patent

active

053988760

ABSTRACT:
This invention relates to a method of refining pulp stock in which the pulp material to be ground is introduced into a grinding space located between a first rotatable grinding device carried by a shaft and being axially displaceable by a servo motor, and a second non-rotatable grinding device. The servo motor is actuated by pressurized fluid for adjusting and controlling the grinding space, producing a grinding pressure between the first and the second grinding devices and for preventing axial displacement of the first rotatable grinding device relative to the second non-rotatable grinding device in response to fluctuating axial grinding forces. The second non-rotatable grinding device comprises a plurality of concentrically arranged annular grinding members, at least one of which is axially adjustable by a setting device.

REFERENCES:
patent: 2964250 (1960-12-01), Asplund
patent: 2997704 (1961-08-01), Gordon et al.
patent: 3212721 (1965-10-01), Asplund et al.
patent: 3684200 (1972-08-01), Reinhall
patent: 3717308 (1973-02-01), Reinhall
patent: 3737109 (1973-06-01), Johansson
patent: 3961757 (1976-06-01), Berggren
patent: 4073442 (1978-02-01), Virving
patent: 4253613 (1981-03-01), Reinhall
patent: 4283016 (1981-08-01), Reinhall
patent: 4402463 (1983-09-01), Kahmann et al.

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