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马钢姑山铁矿主要金属矿物为赤铁矿,采出的矿石通过跳汰机分选,每年要排放16～18万吨尾矿,要用23亩左右的农田或水塘作堆场。排放的尾矿不仅占用农田、污染环境,而且要消耗大量的运输能源。自1978年以来,姑山矿对跳汰尾矿能否利用问题,进行了长期的试验研究和实践。到1983年上半年为止,用尾矿作混凝土骨料修建的民用建筑、工业建筑已达37849米~3,用于修筑道路14100米,井巷支护混凝土100米~3,为国家节省资金25万元(不包
Magang Gushan Iron Mine main metal minerals hematite, ore by jig sorting, each year to discharge 16-180000 tons of tailings, use about 23 acres of farmland or pond for yard. Emissions of tailings not only occupy farmland, pollute the environment, but also consume a large amount of transport energy. Since 1978, Gushan Mine has conducted long-term experimental studies and practices on the utilization of tailings. By the first half of 1983 civil buildings constructed of tailings for concrete aggregate had reached 37,849m ~ 3 for the construction of roads of 14,100m and of mine roadways supporting concrete of 100m ~ 3, saving the state 25 Million (not including