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矿山是有色金属工业的基础,“七五”期间要把有色金属工业提高到一个新的水平,矿山是不容忽视的。不把矿山建设放到应有的地位,则发挥我国有色金属工业的资源优势将成为一句空话。我公司所属九个矿山,除新华钼矿、大井银铜矿分别为新建、在建矿山外,其余矿山都已达到或超过设计服务年限,进入开采后期。普遍面临着保有矿量不断减少、品位显著降低、开采深度增加、条件劣化、难度增大、产量下降、劳动生产率降低、成本升高、经济效益明显下降等重重困难。
Mines are the foundation of the nonferrous metal industry. During the “Seventh Five-Year Plan” period, the nonferrous metal industry should be raised to a new level. The mines can not be ignored. If we do not put the mine construction into its proper place, it will become a nonsense to give play to the resource advantages of China’s non-ferrous metal industry. Nine mines belonging to our company, except Xinhua Molybdenum Mine and Dajingyin Copper Mine, are newly built. Except for mines under construction, the remaining mines have reached or exceeded the designed service life and entered the later stage of exploitation. In general, there are many difficulties such as keeping the amount of mineral deposits under control, significantly reducing the grade, increasing the mining depth, deteriorating conditions, increasing the difficulty, decreasing the output, lowering the labor productivity, increasing the cost and obviously lowering the economic benefits.