Method for the manufacture of mechanical pulp

Details Method for the manufacture of mechanical pulp Method for the manufacture of mechanical pulp

1980-10-09

1983-09-27

Chin, Peter

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Mechanical defibration in the presence of heated gas or gas...

162 25, 162 26, 162 28, 162 56, 241 28, D21B 104

Patent

active

044067348

ABSTRACT:
A method and a device for the manufacture of mechanical pulp from lignocellulosic material by forcing the said material into contact with a grindstone (1) which revolves about an axle (2). The material is supplied in bulk, particulate form, preferably as wood chips, a large number of particles simultaneously being retained, compressed and, in the presence of water, forced into contact with one or more grinding areas on the circumferential surface of the grindstone (1). The grindstone (1) is enclosed in a sealed, pressurized housing (5).

REFERENCES:
patent: 3125306 (1964-03-01), Kollberg et al.
patent: 3808090 (1974-04-01), Logan et al.
patent: 4247363 (1981-01-01), Soma et al.
patent: 4283252 (1981-08-01), Reinhall
German Auslegeschrift 1010367, Published Jun. 13, 1957.

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