Apparatus for material bed comminution of brittle material for grinding
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United States of America Patent
Stats
-
Jan 17, 1995
Grant Date -
N/A
app pub date -
Aug 25, 1993
filing date -
Sep 24, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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