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多年来,如何有效地回收利用尾矿资源,提高镍金属回收率,一直是困扰吉镍集团技改工作的一个难题。2003年3月,吉镍集团在此项目上取得突破性进展,决定采用重——浮联合流程工艺,对尾矿中的有价金属进行再回收利用。此项工程已于3月份破土动工。 吉镍集团选矿现有工艺流程为单一的磨矿——浮选流程,矿石经两磨一选最终产出精矿和尾矿,其中尾矿量占原矿的80％左右,全年可产尾矿24万吨,镍金属品位在0.3％左右,按此测算,每年排放到尾矿库的镍金属含量约700
Over the years, how to effectively recycle tailings resources and improve nickel metal recovery has always been a problem that has plagued Ji Ni Group’s technical reform work. In March 2003, Ji Nickel Group made breakthrough progress in this project, and decided to adopt heavy-float combined process technology to recycle the valuable metals in the tailings. The project broke ground in March. Ji Ni Group beneficiation process existing as a single grinding ore - flotation process, the ore by the final election of two grinding concentrate and tailings, tailings account for about 80% of the ore, the whole year can be tail 240,000 tons of ore, nickel metal grade is about 0.3%, according to this calculation, the annual discharge to the tailings of nickel metal content of about 700