Granulating apparatus

Details Granulating apparatus Granulating apparatus

1990-03-06

1990-10-16

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Traversing roll pressurizing means operably associated with...

425365, 425367, 425DIG230, 264141, B30B 1120, B01J 212

Patent

active

049630849

ABSTRACT:
A granulating apparatus includes a hollow roll equipped on its internal circumference with axially extending toothed ledges and a co-rotating contact pressure roll, equipped with corresponding axial toothed ledges on its outer circumference, and engaging in the hollow roll in the lower area of the latter. The hollow roll is provided with axially extending rows of holes between its toothed ledges. The toothed ledges of the hollow roll and pressure roll intermesh to form a tapering nip zone therebetween. The material to be granulated is fed into the hollow roll and into the nip zone. By means of the cooperation of the toothed ledges, the material is pressed out forcibly and volumetrically in the downward direction. The drops being formed fall onto a cooling conveyor and are allowed to solidify thereon. The mass is extruded forcibly and with a defined volume. By virtue of the cooperation of rotating parts, high production rates are possible.

REFERENCES:
patent: 1804283 (1931-05-01), Sizer
patent: 2063404 (1936-12-01), Selman
patent: 2234595 (1941-03-01), Gano
patent: 2295838 (1942-09-01), Glaze
patent: 3234894 (1966-02-01), Dechert
patent: 3354844 (1967-11-01), Roll et al.
patent: 4279579 (1981-07-01), Froeschke
patent: 4610615 (1986-09-01), Froeschke

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