Wear part, processing apparatus and processing plant for mineral material
View Patent ↗A wear part for a mineral material processing apparatus includes an outer wear surface which comprises an initial phase wear surface to be put in crushing contact with an opposite wear surface, and an end phase wear surface to be taken vertically into use in the crushing process from under the initial wear surface when the wear is progressing. The wear part comprises an end phase wear surface with a protrusion to be put in use when the wear of the outer wear surface is progressing. By means of the protrusion working life of the wear part can be prolonged. A mineral material processing apparatus and a mineral material processing plant.
1. A mineral material processing apparatus comprising an outer wear part and an inner wear part that form a crushing chamber therebetween and which inner wear part is arranged to be moved along an eccentric rotation movement in relation to the outer wear part, wherein the inner wear part comprises an outer wear surface which comprises a working life initial phase wear surface to be put in crushing contact with an opposite wear surface of the outer wear part, and a working life end phase wear surface to be brought vertically into use as part of the crushing chamber in the crushing process from under the working life initial wear surface when the wear is progressing, wherein the working life end phase wear surface includes a protrusion configured to be located outside of the crushing chamber during an initial phase of the working life and to form part of the crushing chamber when the wear of the outer wear surface is progressing.
2. The mineral material processing apparatus according to claim 1 , wherein the protrusion forms a limitation to a flow-through of material between the outer and inner wear surfaces.
3. The mineral material processing apparatus according to claim 1 , wherein the protrusion comprises a step shaped surface that forms an angle with the end phase wear surface, which end phase wear surface continues below the initial phase wear surface.
4. The mineral material processing apparatus according to claim 3 , wherein the step shaped surface of the protrusion is directed along a generally horizontal plane.
5. The mineral material processing apparatus according to claim 3 , wherein the step shaped surface of the protrusion is inclined in relation to a generally horizontal plane.
6. The mineral material processing apparatus according to claim 1 , wherein the inner wear part comprises two or more successive protrusions.
7. The mineral material processing apparatus according to claim 1 , wherein the protrusion is formed of a material which is more wear resistant than a base material of the inner wear part, which material forms the protrusion in the end working life phase wear surface when the wear is progressing.
8. The mineral material processing apparatus according to claim 1 , wherein the material that forms the protrusion is embedded at least partly inside the inner wear part.
9. The mineral material processing apparatus according to claim 1 , wherein the inner wear part comprises a separate skirt part located vertically under the initial phase wear surface, which skirt part comprises the working life end phase wear surface.
10. The mineral material processing apparatus of claim 1 wherein the mineral material processing apparatus is a cone crusher.
11. The mineral material processing apparatus of claim 1 wherein the mineral material processing apparatus is a gyratory crusher.
12. The mineral material processing apparatus of claim 1 wherein the mineral material processing apparatus is a cone crusher.
13. A mineral material processing plant comprising a frame, a base for enabling an independent movement, a feeder for feeding material to be crushed and a crusher for crushing the material to be fed, wherein the base and the feeder are attached to the frame, the crusher further comprising an outer wear part and an inner wear part including an outer wear surface which comprises a working life initial phase wear surface to be put in crushing contact with an opposite wear surface of the outer wear part, and a working life end phase wear surface to be brought vertically into use in the crushing process from under the working life initial wear surface when the wear is progressing, wherein the working life end phase wear surface includes a protrusion configured to be located outside of the crushing chamber during an initial phase of the working life and to be put in use when the wear of the outer wear surface is progressing.
14. The mineral material processing plant of claim 13 wherein the mineral material processing plant is a cone crusher.