Method and apparatus for treating pulp

Details Method and apparatus for treating pulp Method and apparatus for treating pulp

1985-04-29

1987-08-11

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 28, 241111, B02C 1912

Patent

active

046856234

ABSTRACT:
A method and apparatus is disclosed for treating pulp prior to being made into paper, which treatment is known as beating or refining. The method comprises feeding a slurry of the pulp to the narrow nips of grooved rolls at which the slurry of pulp is partially dewatered then almost simultaneously fragments of the pulp are subjected to a predetermined heavy pressure, then dispersed before being subjected to the same sequence until treated to the desired degree.

REFERENCES:
patent: 221992 (1879-11-01), Allen
patent: 1552098 (1925-09-01), Wagner
patent: 1891165 (1932-12-01), Knupffer
patent: 2055956 (1936-09-01), Wells
patent: 2092628 (1937-09-01), Allen
patent: 2909334 (1959-10-01), Nilsson et al.
patent: 3198694 (1965-08-01), Justus
Laboratory Kollergang, pp. 331 and 333.
TAPPI Publication, T225-OS-75, entitled "Laboratory Processing of Pulp (Kollergang Method), 12-1975.

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