Claims
- 1. A vertical haft impact crusher comprising:
- a housing having an outside surface, an inside surface and a cover plate with an underside; a rotor mounted within said housing for rotation about a central vertical axis and designed to receive axially fed rock and propel it outwardly towards the inside surface of said housing;
- means for feeding said rock to the axial center of said rotor;
- means for rotating said rotor about said axis;
- an annular crusher ring releasably and adjustably mounted to said inside surface of said housing on a substantially horizontal plane with said rotor to receive and fragment said rock propelled by said rotor, said crusher ring defining a circle and being comprised of segments, each of said segments comprising means for selective formation into crusher ring portions specifically intended for either autogeneous crushing, impact crushing, semi-autogenous crushing, or combinations thereof, said means including:
- an anvil bracket provided on each of said segments, each of said brackets having at least one leg having two ends, each of said at least one leg being fastened at one end to and extending inwardly from said ring on a secant to the circle defined by said ring, each said second end being connected to a notched cross arm; and
- an autogenous plate retaining bracket provided on each of said segments, each of said plate retaining brackets having an annular portion and a pair of spaced inwardly projecting radial portions, each of said projecting portions being supported by a vertically projecting gusset secured along a vertical edge thereof to said ring.
- 2. The vertical shaft impact crusher described in claim 1 wherein said underside of said cover plate is provided with a vertically-depending annular ring positioned to facilitate the deposition of crushed rock above said anvil brackets.
- 3. The vertical shaft impact crusher described in claim 1 wherein said segments comprise autogenous and impact crushing portions arrayed around said crushing ring.
- 4. The vertical shaft impact crusher described in claim 6 wherein said autogenous and impact crushing portions alternate on a regular basis.
- 5. The vertical shaft impact crusher described in claim 6 wherein said autogenous crushing and impact crushing portions are of approximate equal length.
- 6. A vertical shaft impact crusher for crushing rock or minerals, comprising;
- a housing having an outside surface, an inside surface and a cover plate with an underside provided with a vertically depending annular ring;
- a rotor mounted within said housing for rotation about a central vertical axis and designed to receive axially-fed rock and propel it outwardly towards the inside surface of said housing;
- means for rotating said rotor about said axis;
- an annular crusher ring releasably and adjustably mounted to the inside surface of said housing, said crusher ring defining a circle;
- a plurality of impact breaker anvil brackets secured to and positioned around said crusher ring, each of said brackets having at least one leg having two ends, each of said at least one leg being fastened at one end to and extending inwardly from said crusher ring on a secant to the circle defined by said crusher ring, each said second end being connected to a notched cross arm;
- a plurality of impact breaker anvils removably positioned in a select number of said cross arm notches to receive and fragment rock thrown by said rotor;
- a plurality of autogenous plate retaining brackets secured to and regularly spaced about said crusher ring beneath said anvil brackets, each of said plate retaining brackets including a pair of spaced, inwardly projecting radial portions, each of said portions being supported by a vertically projecting gusset having an inside and an outside, and a pair of vertically projecting locating lugs, each said gusset being secured along a vertical edge thereof to said ring;
- a plurality of substantially planar autogenous plates, each having an inner peripheral edge with an upwardly projecting lip, and an underside and being releasably secured to said crusher ring by said plate retaining brackets between the insides of adjacent gussets and in a selected radially inwardly projecting orientation to form at least one rock-retaining ledge segment beneath said anvil brackets which, when filled with rock, performs autogenous crushing;
- wherein the selected sequence of autogenous plates and breaker anvils around said ring creates autogenous crushing portions, impact crushing portions and/or semi-autogenous crushing portions on said crusher ring to allow the size and shape of said rock passing through said crusher to be precisely regulated.
- 7. The vertical shaft impact crusher described in claim 6 wherein said crusher ring is provided with equal proportions of breaker anvils to form impact crushing portions, and autogenous plates to form autogenous crushing portions in randomly alternating arrangement.
- 8. The vertical shaft impact crusher described in claim 6 wherein said selected sequence includes said autogenous plates and said breaker anvils alternating around said ring in regular arrangement.
- 9. The vertical shaft impact crusher described in claim 6 wherein said autogenous portions are also provided with anvils in said impact breaker anvil brackets to form semi-autogenous crushing portions.
- 10. The vertical shaft impact crusher described in claim 9 wherein said annular cover plate ring may be provided in segments which corresponds to said autogenous portions.
- 11. The vertical shaft impact crusher described in claim 10 wherein said autogenous segments are provided with anvils in said impact breaker anvil brackets to form semi-autogenous crushing portions.
- 12. The vertical shaft impact crusher described in claim 9 wherein said crusher ring is secured to said inside surface of said housing in a vertically adjustable manner.
- 13. The vertical impact crusher described in claim 9 wherein said autogenous plates extend closer to said rotor than do said breaker anvils.
- 14. A vertical shaft impact crusher comprising:
- a housing having an outside surface, an inside surface and a cover plate with an underside provided with a segmented vertically depending annnular ring;
- a rotor mounted within said housing for rotation about a central vertical axis and designed to receive axially-fed rock and propel it outwardly towards the inside surface of said housing;
- means for rotating said rotor about said axis;
- an annular crusher ring secured to the inside surface of said housing in a vertically adjustable manner, said crusher ring defining a circle;
- a plurality of impact breaker anvil brackets positioned in a horizontal plane upon said crusher ring, each of said brackets having at least one leg, each leg with two ends, each leg being fastened at one end to and extending inwardly from said crusher ring on a secant to the circle defined by said crusher ring and each said second end being connected to a notched cross arm;
- a plurality of impact breaker anvils positioned in selected ones of said cross arm notches to receive and fragment rock thrown by said rotor;
- a plurality of autogenous plate retaining brackets secured to and regularly spaced about said crusher ring beneath said anvil brackets, each of said plate retaining brackets including a pair of spaced, inwardly projecting radial portions, each of said portions being supported by a vertically projecting gusset having an inside, an outside, and a pair of vertically projecting locating lugs, each gusset being secured along a vertical edge thereof to said ring;
- a plurality of autogenous plates, each having an upwardly projecting lip on one edge and a pair of notched lateral edges, said notches of said notched lateral edges engaging said locating lugs, said plates extending horizontally inwardly towards said rotor to create a rock retaining ledge for autogenous crushing when releasably placed in said plate retaining brackets;
- wherein the exact sequence of autogenous plates and breaker anvils around said ring creates autogenous, semiautogenous, and/or impact crushing portions on said crusher ring.
- 15. A crusher ring for a vertical shaft impact crusher, said ring comprising a plurality of segments, and defining a circle, each of said segments containing at least one anvil retaining bracket having at least one leg, each leg with two ends and being attached at one end to and extending inwardly from a segment on a secant to the circle defined by said ring, each said second end being connected to a notched cross arm, and an autogenous plate retaining bracket having an annular portion and a pair of spaced, inwardly projecting radial portions defining said segments, each of said radial portions being supported by a vertically projecting gusset secured along a vertical edge thereof to its corresponding segment.
- 16. The crusher ring described in claim 15 wherein said segments are arranged so that every other segment is provided with an anvil in said anvil retaining bracket, and the remaining segments are each provided with an autogenous plate in said autogenous plate retaining bracket.
- 17. The crusher ring described in claim 15 wherein approximately a first half of the number of said segments is provided with anvils in said anvil retaining brackets and a second remaining half of the number of said segments is provided with autogenous plates in said autogenous plate retaining brackets.
Parent Case Info
This application is a continuation of U.S. patent application Ser. No. 06/909,662, filed 9/22/86, now abandoned.
US Referenced Citations (8)
Continuations (1)
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Number |
Date |
Country |
Parent |
909662 |
Sep 1986 |
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