Abstract:
To solve the issues of high labor intensity, low operational efficiency, and poor power supply safety associated with on-site short-distance power supply in the 8701 fully mechanized mining face of Datong Meiyukou Mine, a remote automation transformation of the power supply system for the underground fully mechanized mining face was carried out. A remote centralized power supply system for the power center was proposed, with power supply trains arranged in the chamber. The lines were optimally designed to eliminate harmonic interference, achieving remote integration of the power supply system. Through application practice in the 8701 fully mechanized mining face of Datong Meiyukou Mine, it was found that the remote integrated power supply system for fully mechanized mining faces can significantly improve the power supply efficiency of coal mining equipment, enhance the on-site working environment, reduce labor intensity, and increase the continuity of coal mining operations. The monthly mining interruption time was reduced from 9 hours to 3 hours, the continuity of coal mining operations improved by 60.1%, and the cable failure rate decreased from 5.7% to 1.4%, effectively ensuring underground operational safety and coal production.