Abrasion resistant wear part for VSI crusher rotor

Patent metadata

Field	Value
Publication number	US-10695767-B2
Application number	US-201515327579-A
Country	US
Kind code	B2
Filing date	Jun 26, 2015
Priority date	Jun 26, 2015
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

An abrasion resistant wear plate is mountable within a rotor or a vertical shaft impact crusher to protect the rotor from material fed into the rotor. The wear plate includes a main body that mounts and supports at least one abrasion resistant insert to define, in part, a contact face over which feed material is configured to flow.

First claim

The invention claimed is:

1. An abrasion wear resistant plate mountable to protect a rotor within a vertical shaft impact crusher from material fed into the rotor, the wear resistant plate comprising:
a metallic main body including a work plate having a plurality of holes, wherein each of the plurality of holes extend completely across a depth of the work plate;
at least one non-metallic tile secured within each of the plurality of holes in the work plate of the main body to form at least part of a planar contact face arranged to face material fed into the rotor, the at least one non-metallic tile having an abrasion wear resistance greater than that of the main body, wherein the at least one non-metallic tile is substantially free of tungsten carbide; and
a support plate non-detachably coupled to the work plate via mating contact between an upward facing surface of the support plate and a downward facing planar surface of the work plate, wherein each at least one non-metallic tile is secured within each of the plurality of holes in the work plate such that a downward facing surface of the at least one non-metallic tile is mated against the upward facing surface of the support plate.

2. The plate as claimed in claim 1 , wherein the at least one non-metallic tile is mounted in the work plate of the main body such that the planar contact face of the at least one non-metallic tile comprises a combination of an exposed wear surface of the tile and a work surface of the metallic main body, the exposed wear surface being co-aligned with the work surface to form a continuous single planar surface contacted by the material.

3. The plate as claimed in claim 1 , wherein the metallic main body is made of a steel alloy.

4. The plate as claimed in claim 1 , wherein the metallic main body comprises nodular iron.

5. The plate as claimed in claim 1 , wherein a thickness in a direction perpendicular to the contact face is less than 50 mm.

6. The plate as claimed in claim 1 , wherein the at least one non-metallic tile comprises a plurality of non-metallic tiles having substantially the same size and/or shape.

7. The plate as claimed in claim 1 , wherein the at least one non-metallic tile comprises any one or a combination of aluminium oxide (alumina), zirconium oxide (zirconia), silicon carbide, boron carbide, silicon nitride or boron nitride.

8. The plate as claimed in claim 1 , wherein the at least one non-metallic tile is bonded to the main body via an adhesive.

9. The plate as claimed in claim 1 , wherein the at least one non-metallic tile is bonded to the main body via encapsulation of at least part of a perimeter of the at least one non-metallic tile by the main body during a casting of the plate.

10. A distributor plate releasably mountable to protect a rotor within a vertical shaft impact crusher from material fed into the rotor, the distributor plate comprising:
an abrasion wear resistant plate, the abrasion wear plate including a metallic main body having a work plate including a plurality of holes, wherein each of the plurality of holes extend completely across a depth of the work plate;
at least one non-metallic tile secured within each of the plurality of holes in the work plate of the main body to form at least part of a planar contact face arranged to face material fed into the rotor, the at least one non-metallic tile having an abrasion wear resistance greater than that of the main body, wherein the at least one non-metallic tile is substantially free of tungsten carbide; and
a support plate non-detachably coupled to the work plate via mating contact between an upward facing surface of the support plate and a downward facing planar surface of the work plate, wherein each at least one non-metallic tile is secured within each of the plurality of holes in the work plate such that a downward facing surface of the at least one non-metallic tile is mated against an upward facing surface of the support plate.

11. The distributor plate as claimed in claim 10 , comprising a plurality of non-metallic tiles, wherein a surface area of the at least one non-metallic tile at the contact face, or where the wear plate includes the plurality of non-metallic tiles, has a combined surface area of the non-metallic tiles at the contact face that is less than a surface area of main body at the contact face.

12. A protective wear part arranged to sit radially outside a central distributor plate mountable to protect an upper or lower disc of a rotor within a vertical shaft impact crusher, the protective wear part comprising an abrasion wear resistant plate including a metallic main body having a work plate having a plurality of holes, wherein each of the plurality of holes extend completely across a depth of the work plate, and at least one non-metallic tile secured within each of the plurality of holes in the work plate of the main body to form at least part of a planar contact face arranged to face the material fed into the rotor, the at least one non-metallic tile having an abrasion wear resistance greater than that of the main body, wherein the at least one non-metallic tile is substantially free of tungsten carbide, and a support plate non-detachably coupled to the work plate via mating contact between an upward facing surface of the support plate and a downward facing planar surface of the work plate, wherein each at least one non-metallic tile is secured within each of the plurality of holes in the work plate such that a downward facing surface of the at least one non-metallic tile is mated against the upward facing surface of the support plate.

13. The wear part as claimed in claim 12 , comprising a plurality of non-metallic tiles, wherein a surface area of the at least one non-metallic tile at the contact face, or where the wear plate includes the plurality of non-metallic tiles, has a combined surface area of the non-metallic tiles at the contact face that is less than a surface area of main body at the contact face.

14. The plate as claimed in claim 1 , wherein the work plate and the support plate are made of different abrasion resistant material.

15. The distributor plate as claimed in claim 10 , wherein the work plate and the support plate are made of different abrasion resistant material.

16. The wear part as claimed in claim 12 , wherein the work plate and the support plate are made of different abrasion resistant material.

Assignees

• Sandvik Intellectual Property

Inventors

• Kjaerran Knut
• Forsberg Andreas
• Dallimore Rowan

Classifications

• B02C13/1807

  the material to be crushed being thrown against an anvil or impact plate (with horizontal axis B02C13/09; centrifugal acceleration of material through radially extending channels B02C19/0025; centrifugal acceleration of material by means of an open top rotor B02C19/0031) · CPC title

• B02C13/1814

  by means of beater or impeller elements fixed on top of a disc type rotor · CPC title

• B02C2013/28681

  Feed distributor plate for vertical mill · CPC title

• B02C2210/02

  Features for generally used wear parts on beaters, knives, rollers, anvils, linings and the like · CPC title

• B02C13/1835 Primary

  by means of beater or impeller elements fixed in between an upper and lower rotor disc · CPC title