A cutting head assembly
AssigneeOptima Mining Systems Pty Ltd
InventorBenjamin Charles Michael BROWN
Life of this patent
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Abstract
A cutting head assembly for excavating rock fragments from a mine wall is disclosed. In an embodiment, the cutting head assembly comprises a primary breakage mechanism actuable to apply, to the mine wall, a breakage force for breaking rock fragments from the mine wall. A surface of the cutting head assembly catches the rock fragments broken from the mine wall and has one or more ports associated therewith. A secondary breakage mechanism is operatively associated with the surface and actuable to apply a force for reducing the size of at least some of the rock fragments caught by the surface so as to allow at least the reduced size rock fragments to pass through a respective port for transportation to downstream processing.
Claims25
A cutting head assembly for excavating rock fragments from a mine wall, the cutting head assembly comprising:
- a primary breakage mechanism actuable to apply, to the mine wall, a breakage force for breaking rock fragments from the mine wall;
- a surface for catching the rock fragments broken from the mine wall, the surface having one or more ports associated therewith;
- and a
- secondary breakage mechanism operatively associated with the surface, the secondary breakage mechanism actuable to apply a force for reducing the size of at least some of the rock fragments caught by the surface so as to allow at least the reduced size rock fragments to pass through a respective port for transportation to downstream processing.
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A cutting head assembly for excavating rock fragments from a mine wall, the cutting head assembly comprising:
- a primary breakage mechanism actuable to apply, to the mine wall, a breakage force for breaking rock fragments from the mine wall;
- a housing comprising a fluid passageway and a surface for catching the rock fragments broken from the mine wall, the surface having one or more ports associated therewith, wherein the fluid passageway extends between the one or more ports and an outlet;
- a secondary breakage mechanism operatively associated with the surface and proximal to the one or more ports, the secondary breakage mechanism actuable to apply a force for reducing the size of at least some of the rock fragments caught by the surface so as to allow at least the reduced size rock fragments to pass through a respective port;
- and
- wherein, in use, the secondary breakage mechanism actuates subsequent to the primary breakage mechanism and a suction pressure applied to the outlet transports the reduced sized rock fragments via the one or more ports to the outlet for downstream processing.
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Dependencies are inferred from the claim text.