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大庙铁矿是一个中型地下矿山。1956年下半年开始建设,1959年试生产,1960年初正式投入生产,当年达到设计规模。 1961年进行了调整,通过填平补齐,以及科研及挖、革、改,使生产工艺不断完善,产量持续上升,从1970年起连续12年突破设计能力。24年(59—82)以来,共生产矿石1268.8万吨,平均全员劳动生产率582.07吨/人·年,单位矿石成本7.61元,/吨。是我国黑色金属地下矿山投资少,建设快,生产效率高,经济效益好的矿山之一见(表1)、(表2)。
Damian Iron Mine is a medium-sized underground mine. Construction began in the second half of 1956, pilot production in 1959, formally put into production in early 1960, then reached the design scale. In 1961, it was adjusted to fill the gap, and scientific research and excavation, leather and reform, so that production technology continues to improve, production continued to rise, from 1970 onwards for 12 years break through the design capabilities. Since 24 years (59-82), a total of 12.688 million tons of ore have been produced, with an average full-time labor productivity of 582.07 tons / person year and a unit ore cost of 7.61 yuan / ton. It is one of the mines with less investment, fast construction, high production efficiency and good economic returns in China’s ferrous metal underground mine (Table 1) (Table 2).