Process for controlling longwall shearing and heading machines along a cutting horizon between coal and rock
First Claim
1. A process for controlling reaming and advance machines along a cutting horizon between coal and rock, based on a cutting tool configuration affixed to a machine, fitted with a sensor able to differentiate between coal and rock areas, whose measuring values are transformed into actuating impulses, which guide the cutting tools to the cutting horizon, comprising:
- taking mineral samples from behind the cutting tool at one of a perpetual rate or short intervals;
analyzing the mineral samples in the sensor;
comparing the analysis to a standard value; and
using deviations from the standard value as measured values for the actuating impulses.
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Abstract
Process and device for controlling longwall shearing and heading machines along a cut horizon between coal and rock. The horizon is produced by a cutting tool arrangement attached to the machine and followed by a sensor which distinguishes between coal and rock. The values measured by the sensor are converted to control impulses which guide the cutting tool in the cut horizon. Mineral samples are taken, continuously or at short distances apart, behind the cutting tool arrangement, and the sample material is analyzed in the sensor. The result of the analysis is compared with a standard value and the deviation from the theoretical value is used as the value of the control impulses.
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Citations
26 Claims
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1. A process for controlling reaming and advance machines along a cutting horizon between coal and rock, based on a cutting tool configuration affixed to a machine, fitted with a sensor able to differentiate between coal and rock areas, whose measuring values are transformed into actuating impulses, which guide the cutting tools to the cutting horizon, comprising:
- taking mineral samples from behind the cutting tool at one of a perpetual rate or short intervals;
analyzing the mineral samples in the sensor;
comparing the analysis to a standard value; and
using deviations from the standard value as measured values for the actuating impulses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
- taking mineral samples from behind the cutting tool at one of a perpetual rate or short intervals;
Specification