Dry refining process and apparatus

Details Dry refining process and apparatus Dry refining process and apparatus

1979-01-08

1980-03-04

Lazarus, Richard B.

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 18, 241 28, 2412612, 2412613, B09C 702

Patent

active

041913353

ABSTRACT:
A process and apparatus is disclosed for dry refining cellulosic pulp wherein the liberated fibers are structurally deformed and twisted without producing unwanted knots or fiber bundles. For the purposes of the invention, a disk refiner is used which is modified to include one or more air jets located at the periphery of the refiner housing. During refining, the refiner is provided with a cooling means, while air is introduced into the housing through the air jets to prevent fibers from becoming trapped between the ends of the refiner disks and the housing walls, thus preventing the formation of knots and fiber bundles.

REFERENCES:
patent: 1795603 (1931-03-01), Hussey
patent: 3596840 (1971-08-01), Blomquist et al.
patent: 3802630 (1974-04-01), Lee et al.

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