Two-roll press for pressure treatment of granular material
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United States of America Patent
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Jun 15, 1999
Grant Date -
N/A
app pub date -
Sep 12, 1997
filing date -
Sep 13, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In two-roll machines for high-pressure disintegration of granular material, in which typically only one of the two rolls is motor driven, while the other roll is driven by means of friction via the granular material pressed in the roll gap, and thus operates as a drag roll, it is proposed to equip the drag roll with a separate, smaller drive mechanism including a separate smaller drive motor. This drive is thereby dimensioned in such a way that the startup of the drag roll is ensured and a drop in revolutions per minute of the drag roll is avoided. Alternatively, this separate drive is enlarged in such a way that it can transmit 10% to 40%, preferably 20%, of the total required drive power.
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