Solid material comminution or disintegration – Apparatus – Cooperating comminuting surfaces
Patent
1993-08-25
1995-01-17
Husar, John
Solid material comminution or disintegration
Apparatus
Cooperating comminuting surfaces
241230, 241293, B02C 430
Patent
active
053819772
ABSTRACT:
The invention relates to apparatus for material bed comminution of brittle material for grinding, with two roll-like comminuting tools, in which the length:diameter ratio is in each case less than 1 and of which one tool is fixed and the other is mounted so as to be movable, wherein a working gap distance is maintained between the two comminuting tools in the unloaded starting position and the comminuted material for grinding is substantially pressed to form agglomerated scabs. In order to ensure a relatively low wear and a relatively maintenance-free operation the length:diameter ratio of the comminuting tools is less than approximately 0.3 and the diameter of the roll-like comminuting tools is chosen to be sufficiently great that the scab thickness is always greater than the working gap distance.
REFERENCES:
patent: 4703897 (1987-11-01), Beisner et al.
patent: 4840315 (1989-06-01), Rubin et al.
patent: 5054701 (1991-10-01), Durinck et al.
patent: 5203513 (1993-04-01), Keller et al.
Cement-Data-Book, vol. 1, 3rd revised and enlarged new edition, by Walter H. Duda pp. 255-257, (1985).
Husar John
Krupp Polysius AG
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