Solid material comminution or disintegration – Apparatus – Including means applying fluid to material
Patent
1987-08-27
1989-05-16
Rosenbaum, Mark
Solid material comminution or disintegration
Apparatus
Including means applying fluid to material
511632, 241 80, 241 97, 241176, 241182, B02C 1702
Patent
active
048302899
ABSTRACT:
A centrifugal fluidized grinding apparatus having balls as a grinding medium therein, comprises a parting vessel having a vertical axis, composed of inner and outer vessel parts both forming a circumferential groove. The circumferential groove has a continuous and smooth surface and provides a completely open inner space allowing the grinding medium and starting material to move freely through any part of the entire area of the inner space without encountering any obstacles. The groove has a generally ovoid profile with an upper part thereof cut away in a vertically cross-sectional view taken along a plane including the axis. The ovoid has a longitudinal axis intersecting the vertical axis at a position over the parting vessel. The inner and outer vessel parts are mounted for relative rotation about the vertical axis, in such a manner that the inner vessel part is rotated while the outer vessel part is stationary, or the latter is rotated in a reverse direction. The groove is covered, but the balls are forced to fly from a groove surface part, formed by the outer vessel part, to land tangentially on an opposite groove surface part, formed by the inner vessel part, in a parabolic flight course below the covering.
REFERENCES:
patent: 442055 (1890-12-01), Jordan
patent: 4673134 (1987-06-01), Barthelmess
"Grinding" by Saburo Kamei, issued by Sangyo Tosho Ltd. in Japan, pp. 235, 335, 336, Jun. 1, 1952.
"Development of Centrifugal Fluidized Mill for Fine Grinding" by Nobuaki Inoue, UBE Industries Ltd. , in Magazine "INTER" issued on Apr. 20, 1987 in Japan.
Fujino Kiyoshi
Umeya Kaoru
Rosenbaum Mark
Ube Industries Ltd.
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