Coal caving cycle
AssigneeYancoal Technology Development PTY Ltd
InventorsMaohu Matthew Wang, Steven Chandler
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Abstract
A coal caving system (1) including a plurality of shields (3) with canopies (6) which are selectively operated to allow coal to cave onto a rear conveyor (37). In one aspect, the invention provides a shield control method including controlling the shield (3) to automatically open a door (6) associated with a rear canopy of the shield (3) responsive to a position of a shearer of the system.
Claims26
A shield control method including controlling a shield of a coal caving system to automatically open a door associated with a rear canopy of the shield to allow coal to cave onto a conveyor.
A method of operating a long wall top coal caving system which includes a front and rear conveyor extending beneath shields which include canopies that define caving doors, wherein the caving doors are sequenced to automatically open in a first cycle to regulate limited caving onto the rear conveyor.
A controller for a long wall top coal caving system, the caving system including a front and rear conveyor extending beneath shields which include canopies, wherein the controller includes a processor configured to automatically to open the canopies to allow caving onto the rear conveyor.
The controller of claim 17, wherein the controller is in communication with a plurality of sensors from one or more components of the long wall top coal caving system, wherein the processor is configured to:
- receive one or more feedback signals indicative of operation of the one or more components;
- determine, based on the one or more feedback signals, if the canopies are to be opened;
- and
- in response to a positive determination, actuate one or more drives associated with the canopies to allow caving onto the rear conveyor.
A shield control method, substantially as described with reference to the drawings and/or examples.
A method of operating a coal caving system, substantially as described with reference to the drawings and/or examples.
A caving system, substantially as described with reference to the drawings and/or examples.
Dependencies are inferred from the claim text.