High reduction ratio crushing in conical/gyratory crushers
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United States of America Patent
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Sep 1, 1998
Grant Date -
N/A
app pub date -
Nov 22, 1996
filing date -
Nov 22, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The residence time of material in the crushing cavity of a conical/gyratory crusher is controlled by providing the crusher with a flow restricting arrangement at the lower end of the crushing surfaces. The flow restricting arrangement includes a frustum, ledges or ring of outwardly directed fingers provided at the lower end of the mantle, which finger are interspaced with inwardly directed fingers provided at the lower end of the bowl liner. The flow restricting arrangement also includes a solid ring or a frustum provided at the lower end of the mantle.
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