某细粒黄金尾矿浓缩沉降及流变特性研究  

Research on thickening and rheological properties of certain fine gold tailings

作　　者：李琳[1] 吕剑桥 崔曼 刘静静 娄田田 王俊祥[1] Li Lin;LüJianqiao;Cui Man;Liu Jingjing;Lou Tiantian;Wang Junxiang(College of Chemical and Biological Engineering,Shandong University of Science and Technology;Linqu R&D Center of Enterprise Technology Innovation)

机构地区：[1]山东科技大学化学与生物工程学院 [2]临朐县企业技术创新研发中心

出　　处：《黄金》2023年第1期99-101,105,共4页Gold

基　　金：山东省自然科学基金项目(ZR2019BEE075);山东省高等学校青创科技支持计划(2020KJD001)。

摘　　要：以山东某金矿选矿厂分级所得的低浓度细粒尾矿为研究对象,采用絮凝沉降工艺进行高效浓缩,考察了絮凝剂用量对细粒尾矿沉降特性的影响,同时基于布金汉方程研究了不同浓度细粒尾矿胶结料浆的管道输送特性。结果表明:絮凝剂的加入对细粒尾矿沉降具有显著的促进作用,当絮凝剂用量为60 g/t时,细粒尾矿的沉降速度可达8.80 cm/min。胶结料浆流变特性参数测定和管道输送阻力计算,为胶结料浆浓度控制及其在充填管道中的顺利输送提供了重要依据。Based on the low-concentration fine tailings obtained from the classification of certain gold ores in Shandong Province,the effective thickening of the tailings was carried out by flocculation and sedimentation process.The effect of flocculant dosage on the sedimentation characteristics of the fine tailings was investigated.At the same time,the pipeline transportation properties of cemented slurry of fine tailings with different concentrations were studied with the help of the Buckingham equation.Test results showed that the addition of flocculant significantly promoted the sedimentation of fine tailings.When the dosage of the flocculant was 60 g/t,the sedimentation rate of fine tailings reached 8.80 cm/min.The measurement of rheological parameters of cemented slurry and the calculation of pipeline transportation resistance provided an important basis for the concentration control of cemented slurry and its smooth transportation in the filling pipeline.

关 键 词：细粒尾矿 分级利用 絮凝沉降 输送特性 流变特性 

分 类 号：TD982[矿业工程—选矿]