Crushers with ring-shaped track and roller
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United States of America Patent
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-
Oct 31, 2000
Grant Date -
N/A
app pub date -
Nov 2, 1999
filing date -
Apr 15, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A grinder having an annular track with a horizontal axis (14), a roller (16) capable of travelling over the track, a mechanism for pressing the roller against the track and means (18) for displacing the material from one edge of the track to the other in such a way that it passes several times beneath the roller before being evacuated. To enhance the efficiency of the grinder and the distribution of mechanical stresses in the roller and the track, the track (14) and the roller (16) are designed in such a way that the gap between them decreases from the edge of the track (14) located on the side for supplying the material to be ground to a distance from this edge at least equal to 80% of the width of the track, and in that this interval then swiftly increases to form a decompression area (19) on the ground material evacuation side.
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