Wear resistant rock crusher impeller and method
AssigneeSmith and Stout Research and Development, Inc.
InventorsJerry I. Smith, Anthony E. Stout
Life of this patent
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Abstract
A rock crusher (10) including a turntable (26) with a series of impellers (34) mounted thereon. Each impeller (34) includes a curved, C-shaped pocket (56) that includes a radially inwardly sloped wall (59) terminating in a transversely extending lip (111). The impeller (34) is oriented in a somewhat closed position or greater angle of attack (90) so that the front face (54) of the impeller is exposed to oncoming rocks. A method of retaining rock fines (116) in a pocketed impeller (34) of a rock crusher (10) which includes orienting a radially outermost pocket wall (59) in a radially inwardly sloped orientation is disclosed.
Claims10
A rock hurling impact rock crusher comprising,
- a rotatable turntable including a center region adapted to receive a quantity of rocks and an outer region,
- a plurality of impellers mounted to the turntable at the outer region thereof for rotation of the impellers as the turntable is rotated, each of the impellers having a forwardly facing wear face substantially radially oriented relative to the turntable,
- a ring of anvils spaced outwardly of the impellers and substantially in vertical alignment therewith,
- each impeller having a body with a pocket formed in the wear face thereof, the pocket increasing in depth from a radially inner shallow end to a radially outer deepest end, and the pocket being defined at the radially outer end by a transversely extending lip and an end wall extending inwardly in the body from the lip in a radially outwardly extending direction, whereby fines carried with rocks being crushed collect within and are at least partially trapped by the pockets of the impellers.
An impeller for use in a centrifugal impact rock crusher comprising:
- an impeller body formed for mounting to a turntable of a centrifugal impact rock crusher with a front wear face substantially radially oriented so as engage and hurl rocks outwardly against an anvil when mounted on the turntable, and the body being further formed with a pocket providing a recess in the front wear face, the pocket tapering in depth from a shallow end to a deepest end, and the pocket being defined in part by a transversely extending end wall at the deepest end of the pocket, the body further being formed for mounting of the impeller to the turntable with the deepest end of the pocket in a radially outermost position and the end wall being radially outwardly inclined as said end wall extends inwardly into the body.
Dependencies are inferred from the claim text.