TN1032 : Investigation of mechanization and automation capability in coal mines, Case study: Zemestan Yurt coal mine
Thesis > Central Library of Shahrood University > Mining, Petroleum & Geophysics Engineering > MSc > 2021
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Abstarct: Mechanization and automation in underground coal mines play an essential role in improving mining conditions and increasing productivity under stable safety conditions. In this research, the capability of mechanization and automation in Zemestan Yurt coal underground mine is investigated in three parts: extraction, transportation and monitoring of the mine environment. The most important issue for mechanization is the susceptibility of coal laxyers to mechanization. Factors affecting the mechanization capability of coal laxyers including seven criteria of slope, thickness, uniformity, quality of roof and floor stone, extent and water in the work front were scored by FAHP. By defining membership functions and fuzzy decision performance, Mine coal laxyers were defined in five categories. The coal laxyer of this mine has a very weak ability for mechanization. By examining the transportation sector of the mine and to increase efficiency, by FAHP according to nine criteria of accessibility, safety, maintenance, energy and fuel costs, training costs, flexibility, initial capital price, useful life and production capacity an optimal transportation system suitable for incline Tunnel 3 has been selected. Studies have shown that the conveyor system is the best transportation system in incline Tunnel 3. Due to the manual gas metering method in this mine, ZigBee wireless network has been introduced. With the help of OPNET software, an environmental monitoring system was simulated for the incline Tunnel 3. The results show network stability with a delay of 0.011 seconds. With the possibility of this system, the cost of its basic equipment was estimated at 263719000 Rial. Finally, using MATLAB software, a fuzzy model with the input of nitrogen, oxygen, carbon monoxide and methane gas and ambient temperature was presented to determine the intensity of combustion in the mine environment. The results of gas measurement in the three proposed stations show that station number three is in the mode of moderate combustion intensity, which is a worrying and significant situation.
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#Keywords: Zemestan Yurt coal mine #Mechanization #FAHP #Optimal transportation system #ZigBee network simulation #Modeling of mining environment monitoring system Keeping place: Central Library of Shahrood University
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