Solid material comminution or disintegration – Apparatus – Loose grinding body comminutor
Patent
1992-12-11
1994-09-13
Rosenbaum, Mark
Solid material comminution or disintegration
Apparatus
Loose grinding body comminutor
241174, 241183, B02C 1716, B02C 1718
Patent
active
053461452
ABSTRACT:
An apparatus for dispersing and grinding a material by means of a grinding medium, such as balls or beads, comprises a grinding vessel, and a rotor rotatably disposed in the grinding vessel to define a narrow annular flow path between the rotor and the inner wall of the grinding vessel. On the outer peripheral surface of the rotor, a set of guiding protrusions is disposed for guiding, in the circumferential direction, the flow of a mixture of the grinding medium and material flowing within the annular flow path. Inside the rotor, an inside flow path extends in the axial direction and a backward screw is disposed for returning the grinding medium in the inside flow path to the upstream side of the grinding vessel. The grinding medium gathering at the downstream side of the grinding vessel efficiently enters the inside flow path through inflow conduits provided on the rotor, the grinding medium and is urged backwards toward the upstream side by the backward screw. The grinding medium exits the inside flow path and returns to the upstream side through outflow conduits. Thus, the dispersion efficiency is improved and the treatment time of the material is reduced.
REFERENCES:
patent: 3202364 (1965-08-01), Wieland
patent: 4174074 (1979-11-01), Geiger
patent: 4620673 (1986-11-01), Canepa et al.
patent: 4856717 (1989-08-01), Kamiwano et al.
patent: 4919347 (1990-04-01), Kamiwano et al.
Inoue Yoshitaka
Kamiwano Mitsuo
Adams Bruce L.
Husar John M.
Inoue Mfg. Inc.
Rosenbaum Mark
Wilks Van C.
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