Classifying hammermill system and method of operation

Details Classifying hammermill system and method of operation Classifying hammermill system and method of operation

1975-02-10

1976-06-29

Custer, Jr., Granville Y.

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 24, 241 27, 241 54, 241154, 241188R, B02C 2330

Patent

active

039661261

ABSTRACT:
An apparatus and method for processing fibrous material into fluff and substantially individual fibers. The apparatus includes a hammermill having an impermeable wall of grid-like configuration against which fibrous material to be fiberized is thrown by impact element rotation. The fibrous material is conveyed through the mill in an air stream which defines a general path for the fibrous material under the influence of impact element rotation. The grid-like wall serves to slow the particles of fiber rebounding from the wall so that the particles are subjected to repeated impacts by the impact elements of the mills. Rings divide the interior of the hammermill to control the fiber flow in the air stream to the outlet. A pair of hammermills in sequence permits pulps which are difficult to defiberize to be readily reduced to fluff.

REFERENCES:
patent: 189959 (1877-04-01), Ryerson
patent: 254403 (1882-02-01), Storer
patent: 1832468 (1931-11-01), McMillan et al.
patent: 2609995 (1952-09-01), Klagsbrunn
patent: 3547356 (1970-12-01), Asplund

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