安庆铜矿尾砂综合利用工艺技术研究及应用  

Study on comprehensive utilization process plan of Anqing copper mine tailings

作　　者：王红武 陈灿[2] 彭啸鹏 WANG Hongwu;CHEN Can;PENG Xiaopeng(Anqing Copper Mine of Tongling Nonferrous Metals Group Holding Co.,Ltd.,Huaining Anhui 246131,China;Tongling Nonferrous Design and Research Institute Co.,Ltd.,Tongling Anhui 244000,China;BGRIMM Technology Group,Beijing 100160,China)

机构地区：[1]铜陵有色金属集团股份有限公司安庆铜矿,安徽怀宁246131 [2]铜陵有色设计研究院有限责任公司,安徽铜陵244000 [3]矿冶科技集团有限公司,北京100160

出　　处：《有色金属（矿山部分）》2024年第5期157-162,共6页NONFERROUS METALS(Mining Section)

基　　金：国家重点研发计划青年科学家项目(2021YFC2900600);矿冶科技集团有限公司青年创新基金资助项目(04-2408)。

摘　　要：目的:随着开采年限增加,安庆铜矿已逐步面临尾矿库库容不足难题。为此开展了安庆铜矿尾矿综合利用工艺研究,以期实现尾砂资源化利用,降低排尾量,延长尾矿库使用年限。方法:通过安庆铜矿尾砂产出工艺调研,结合尾砂物化特性分析,研究形成了基于旋流分级联合震动脱水的尾砂综合利用工艺技术。并通过工业试验研究,分析了分级粗尾砂产品质量指标与利用效率。结果:试验结果表明,粗尾砂产品-74μm颗粒平均含量低于15%,含水率约18%,硫元素含量低于0.5%,均满足建筑用砂标准。工业试验的尾砂综合利用能力为30 t/h,利用效率为48%,每年可减少约20万t尾矿库排尾量,能有效缓解安庆铜矿尾矿库库容不足难题。意义:相关成果对于面临类似难题的矿山具有较好的指导意义和实用价值,为我国金属矿尾矿固废综合利用技术的发展起到促进作用。Purpose:With the increase of mining years,the Anqing copper mine has gradually faced the problem of insufficient storage capacity of tailings dam.Therefore,the study of comprehensive utilization technology of tailings at the Anqing copper mine has been conducted,aiming to achieve the resource utilization of tailings,reduce the amount of tailings disposal,and extend the service life of the tailings dam.Method:Through the research on tailings production processes of Anqing copper mine,and the analysis of physical and chemical characteristics of the tailings,a comprehensive utilization process technology of tailings based on cyclone classification combined with vibratory dewatering has been developed.And by conducting industrial trial,the quality indicators and utilization efficiency of classified coarse tailings were analyzed.Result:The tests results show that the average content of particles finer than-74μm of coarse tailings product is less than 15%,and the water content of coarse tailings product is approximately 18%,moreover the content of sulfur is less than 0.5%,which all meet the requests of standards for construction sand.The industrial trial demonstrated that the comprehensive utilization capacity of the tailings is 30 t/h,with an efficiency of 48%,and can then reduce the tailings discharge by around 200,000 t annually,which can effectively alleviate the Anqing copper mine’s problem of insufficient capacity of tailings dam.Significance:The related research results can provide guidance and practical value for mines facing similar challenges and contribute to the development of solid waste comprehensive utilization technology for metal mine tailings in China.

关 键 词：尾砂综合利用 尾砂建材化利用 尾砂消纳处置 金属矿尾矿 尾矿库排尾 

分 类 号：TD235[矿业工程—矿井建设]