Double-roll crusher

Details Double-roll crusher Double-roll crusher

1979-05-31

1981-02-24

Goldberg, Howard N.

Solid material comminution or disintegration

Apparatus

Cooperating comminuting surfaces

83835, B02C 1818

Patent

active

042522820

ABSTRACT:
An improved double-roll crusher is provided which is especially suitable for crushing bones having a relatively low content of soft matter, the crusher being of the general type comprising two parallel rolls, each comprising an assembly of alternating toothed cutting discs and spacers so disposed that cutting discs on one roll extend radially into the spaces between adjacent cutting discs on the opposing roll in an alternating manner, wherein the improvement comprises forming the toothed cutting discs so that the gap between adjacent teeth is trapezium-shaped, the sides of the teeth make a rake angle of 1.degree.-20.degree., the upper face of each tooth is beveled 5.degree.-35.degree., and the length of the larger base of the trapezium is close to the maximum desired particle size.

REFERENCES:
patent: 744296 (1903-11-01), Condula
patent: 3201066 (1965-08-01), Danforth
patent: 3240436 (1966-03-01), Mylting
patent: 3991944 (1976-11-01), Balkoff

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