一种尾矿物料的压滤脱水试验研究  

Experimental Study on Pressure Filtration Dewatering of Tailings Material

作　　者：王太海[1,2] 陈建宏[1] 黄振艺[2] WANG Taihai;CHEN Jianhong;HUANG Zhenyi(School of Resources and Safety Engineering,Central South University,Changsha 410083,Hunan,China;China Aluminium Co.,Ltd.,Guangxi Branch,Pingguo 531400,Guangxi,China)

机构地区：[1]中南大学资源与安全工程学院,湖南长沙410083 [2]中国铝业股份有限公司广西分公司,广西平果531400

出　　处：《黄金科学技术》2018年第3期379-386,共8页Gold Science and Technology

基　　金：国家自然科学基金项目"矿山采掘计划可视化编制"(编号:51374242);广西新世纪十百千人才工程专项基金"铝土矿在线智能采矿(编号:20141026)联合资助

摘　　要：针对堆积型铝土矿开发应用过程中洗矿尾矿固液分离难题,在应用压滤脱水技术处理铝土矿微细尾矿的试验研究基础上,开展铝土矿尾矿泥的压滤脱水半工业―工业试验研究,探讨压滤机滤室腔型、滤布、入料浓度和助滤介质等因素对矿泥压滤效率的影响。研究发现压滤机滤腔结构、滤室厚度等制造参数对尾矿泥压滤脱水效率有显著影响,滤布的透气、滤水性能对压滤生产影响较大,入料浓度与压滤效率呈显著的正相关关系,添加改性助滤剂有利于提高压滤效率和降低滤饼含水率。该研究可为完善压滤生产技术,寻求经济合理的配套生产工艺、设备,实施大规模工业化的压滤生产提供科学依据。这种提升压滤效率和降低处理成本的方法途径探索,对矿山尾矿及其他难处理物料的固液分离具有较好的借鉴价值。The solid-liquid separation of bauxite washing tailings is a challenge during the development and application of Karst accumulation bauxite deposits.On the basis of experimental study on the application of pressure filtration dehydration technology in the treatment of bauxite fine tailings to carry out semi-industrialindustrial test research,the influence of filter chamber type,filtering cloth,material concentration and filter media on the filtration efficiency of mud was discussed.The study find out the significant impact on efficiency of pressure filtering for tailings mud with structure and thickness of filter chamber,the great influence of filtering production for permeability and filterability of filtering cloth,the positive correlation between material concentration and efficiency of pressure filtering,join in the aid during filtering is conducive to increase filtering efficiency and to reduce the moisture content of filtering cake,to provide scientific basis for improving the production technology of pressure filtering,providing a more economical compression filter supporting production technology and equipment,and the implementation of large scale,industrialized and economical pressure filtration.The method of improving the efficiency of filter press and reducing the cost of treatment has a good reference value for the solid-liquid separation of similar mine tailings and other difficult materials.

关 键 词：岩溶堆积型铝土矿 尾矿泥 固液分离 压滤脱水 压滤机 助滤介质 压滤效率 

分 类 号：TD926[矿业工程—选矿]