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南京谷里铜矿是一座采选联合作业的小型黄铜矿,原矿入选品位为1％左右。铜精矿品位在七十年代为14～18％,进入八十年代后,由于推行全面质量管理和经济责任制等先进管理方法,使精矿品位迅速上升到25％以上,到1982年,精矿品位达28.36％,突破当时冶金部部标特级品标准。江苏省冶金厅于1982年3月进行抽样检查,铜精矿品位高达30.41％,居全国同类型中小矿山之首位。当年九月,该产品被评为江苏省优质产品,并于1983年9月,又被评为冶金部优质产品。主管部门据此考核矿山铜精矿品位指标为27.5％(内控选铜回收率为93％)。
Nanjing Gu Li Copper Mine is a small chalcopyrite mining operations, the selected grade of ore is about 1%. Copper concentrate grade in the seventies for 14 ~ 18%, into the eighties, due to the implementation of total quality management and economic responsibility system and other advanced management methods, the concentrate grade quickly rose to more than 25%, by 1982, refined Mineral grade reached 28.36%, breaking the Ministry of Metallurgy Ministry superscript special grade standards. Jiangsu Provincial Metallurgical Office in March 1982 for sampling, copper concentrate grade as high as 30.41%, ranking first in the country with the same type of small and medium mines. That year in September, the product was rated as high-quality products in Jiangsu Province, and in September 1983, has also been rated as Metallurgical Department of quality products. The competent department accordingly assessed the grade of copper concentrates in the mines as 27.5% (internal control copper recovery rate of 93%).