多宝山铜业选矿二分厂浮选精细化管理与控制  

Management and control of flotation refinement in No.2 concentrator of Duobaoshan copper industry

作　　者：高亮 徐继林 刘洋 莫振军 赵玉杰 GAO Liang;XU Ji-lin;LIU Yang;MO Zhen-jun;ZHAO Yu-jie(Heilongjiang Duobaoshan CopperIndustry Inc.,Heihe 164343,Heilongjiang,China)

机构地区：[1]黑龙江多宝山铜业股份有限公司,黑龙江黑河164343

出　　处：《矿冶》2023年第1期44-50,共7页Mining And Metallurgy

摘　　要：黑龙江多宝山铜业二选矿分厂采用铜钼混合浮选工艺,细度管控及浮选药剂添加制度对流程稳定性及尾矿指标影响较大,特别是捕收剂及调整剂的使用需要严格把控。基于实验室不同磨矿细度下浮选闭路实验及药剂用量实验结果,制定现场调试方案。最终确定最佳入浮细度在66%以上,根据黄药用量及硫化钠用量实验确定一粗一扫黄药用量110 g/t、硫化钠用量10 g/t。通过入浮细度管控及改良药剂制度,使精矿及尾矿指标均有较大改善。尾矿指标降低0.01个百分点、精矿指标上升3个百分点、回收率上升2个百分点。Heilongjiang Duobaoshan copper No.2 concentrator adopts the copper molybdenum mixed flotation process.The concentration and fineness control and flotation reagent addition system have a great impact on the process stability and tailings indicators.In particular, the use of collectors and regulators should be strictly controlled.Based on the results of closed-circuit flotation test and reagent dosage test under different grinding fineness in the laboratory, the on-site commissioning scheme is formulated.Finally, the optimum concentration and fineness for floating is determined to be above 66%.According to the experiment of xanthate dosage and sodium sulfide dosage, the dosage of xanthate for one roughing and one sweeping is determined to be 110 g/t, and the dosage of sodium sulfide is determined to be 10 g/t.By controlling the concentration and fineness of flotation and improving the reagent system, the indexes of concentrate and tailings have been greatly improved.Tailings index decreased by 0.01%,concentrate index increased by 3%,and recovery rate increased by 2%.

关 键 词：浮选 浓细度(-0.074 mm含量) 闭路实验 浮选指标 

分 类 号：TD953[矿业工程—选矿]