Pan pitch control in a longwall shearing system
First Claim
1. A method of monitoring a longwall shearing mining machine in a longwall mining system, the shearing mining machine including a shearer having a cutter drum, the method comprising:
- obtaining, by a processor, desired pitch angle information for the shearer;
receiving, by the processor, a pitch angle indicative of a current pitch position of the shearer;
determining, by the processor, whether the pitch angle is within a desired pitch angle range, the desired pitch angle range based on the desired pitch angle information, the desired pitch angle range including a high pitch angle threshold and a low pitch angle threshold; and
controlling, by the processor, a position of the cutter drum based on whether the pitch angle is within the desired pitch angle range;
wherein controlling the position of the cutter drum includes changing a vertical position of the cutter drum based on a difference between the pitch angle and at least one selected from a group consisting of the high pitch angle threshold and the low pitch angle threshold.
2 Assignments
0 Petitions
Accused Products
Abstract
A system and corresponding method of monitoring a longwall shearing mining machine in a longwall mining system, where the shearing mining machine includes a shearer having a cutter drum, the method includes obtaining, by a processor, desired pitch angle information, and receiving, by the processor, a pitch angle indicative of a current pitch position of the shearer. The method also includes determining, by the processor, whether the pitch angle is within a desired pitch angle range, and controlling, by the processor, a position of the cutter drum based on whether the pitch angle is within the desired pitch angle range. The desired pitch angle range is based on the desired pitch angle information.
70 Citations
19 Claims
-
1. A method of monitoring a longwall shearing mining machine in a longwall mining system, the shearing mining machine including a shearer having a cutter drum, the method comprising:
-
obtaining, by a processor, desired pitch angle information for the shearer; receiving, by the processor, a pitch angle indicative of a current pitch position of the shearer; determining, by the processor, whether the pitch angle is within a desired pitch angle range, the desired pitch angle range based on the desired pitch angle information, the desired pitch angle range including a high pitch angle threshold and a low pitch angle threshold; and controlling, by the processor, a position of the cutter drum based on whether the pitch angle is within the desired pitch angle range; wherein controlling the position of the cutter drum includes changing a vertical position of the cutter drum based on a difference between the pitch angle and at least one selected from a group consisting of the high pitch angle threshold and the low pitch angle threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A monitoring device for a longwall mining system including a shearer having a cutter drum and a sensor to determine a pitch position of the shearer, the monitoring device including:
a monitoring module implemented on a processor in communication with the shearer to obtain desired pitch angle information and receive a pitch angle indicative of a current pitch position of the shearer, the monitoring module including; an analysis module configured to determine whether the pitch angle is within a desired pitch angle range, the pitch angle range based on the desired pitch angle information, the pitch angle range including a high pitch angle threshold and a low pitch angle threshold; and a correction module configured to control a position of the cutter drum based on whether the pitch angle is within the desired pitch angle range wherein the correction module is configured to change a vertical position of the cutter drum based on a difference between the pitch angle and at least one selected from the group consisting of the high pitch angle threshold and the low pitch angle threshold. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
17. A longwall mining system comprising:
-
a shearer including a shearer body, a cutter drum coupled to the shearer body, a sensor coupled to the shearer body and configured to determine a pitch position of the shearer body; and a processor coupled to the shearer, the processor configured to obtain desired pitch angle information for the shearer, receive, from the sensor, a pitch angle indicative of a current pitch position of the shearer body, determine whether the pitch angle is within a desired pitch angle range, the desired pitch angle range based on the desired pitch angle information, the desired pitch angle range including a high pitch angle threshold and a low pitch angle threshold, and control a position of the cutter drum by changing a vertical position of the cutter drum based on a difference between the pitch angle and at least one selected from a group consisting of the high pitch angle threshold and low pitch angle threshold. - View Dependent Claims (18, 19)
-
Specification