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为了落实毛主席关于“开发矿业”的指示,根据一机部、冶金部、煤炭部于1974年元月在山东兗州联合召开的竖井机械化攻关科研项目落实会议的安排,长沙矿山研究院与铜陵冶金井巷公司两单位,在阜新煤矿学院协助下,研制成功了环形吊架,在竖井掘进中得到了实际应用,到1975年10月31日为止,该吊架已使用85个循环,掘进井筒210米。4个月来的试验使用表明,环形吊架是一种很好的打眼(特别是打深眼)设施。该吊架工作可靠,结构简单,制
In order to implement Chairman Mao’s directive on “mining development”, according to the arrangement of the shaft mechanization research project jointly held by Ministry of Machine Building, Ministry of Metallurgy and Ministry of Coal Industry in January 1974 in Yanzhou, Shandong, Changsha Research Institute of Mining and Tongling Metallurgy Well Lane Company two units, with the help of Fuxin Coal Mining Institute, the successful development of the ring hanger, shaft in the tunneling has been the practical application until October 31, 1975 so far, the hanger has been used 85 cycles, tunneling 210 Meter. The 4-month trial shows that the hanger is a good hole-drilling (especially deep-eyed) facility. The hanger reliable, simple structure, system