高泥氧化锌矿脱泥/不脱泥浮选对矿浆流变性能的影响  

Effect of Desliming/Non-Desliming Flotation on Pulp Rheological Properties of Highly-mudded Zinc Oxide Ore

作　　者：王琛 刘润清[1] 孙伟[1] 曹学锋[1] 郭衍哲[1] WANG Chen;LIU Run-qing;SUN Wei;CAO Xue-feng;GUO Yan-zhe(School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,Hunan,China)

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙410083

出　　处：《矿冶工程》2018年第5期44-47,50,共5页Mining and Metallurgical Engineering

基　　金：国家自然科学基金(51374247);中南大学中央高校基本科研业务费专项资金(2018zzts794)

摘　　要：研究了某高泥氧化锌矿不脱泥浮选和脱泥浮选时的最佳矿浆浓度,2种方式的最佳矿浆浓度分别为17.77%和24.40%。基于现有悬浮液流变学理论进行了公式推导和试验数据拟合,得出矿浆浓度与矿浆粘度间存在3次多项式的关系。在不脱泥浮选和脱泥浮选中,各自最佳浮选指标下的矿浆浓度和表观粘度都不同,但还原粘度均在17～18之间。还原粘度已将矿浆的诸多因素包含在内,是比矿浆浓度更根本的衡量指标,可作为衡量矿浆分散程度的量化标准。该研究对含泥矿物浮选有一定指导意义。Based on the study, the optimal pulp densities for non-desliming and desliming flotation of a highly-mudded zinc oxide ore were determined to be 17.77% and 24.40%, respectively. Formula derivation and experimental data fitting based on suspension rheologieal theory show that there is a cubic polynomial relationship between pulp density and viscosity. In non-desliming and desliming flotation tests, pulp density and apparent viscosity were different under their optimal flotation results. However, the reduced viscosity was kept within the range of 17- 18. It is a more fundamental index compared with pulp density as it involves many factors of pulp, and can be used as a quantitative criterion to measure the dispersion degree of pulp. This research result can provide guidance for the flotation of muddy minerals.

关 键 词：浮选 氧化锌矿石 脱泥浮选 不脱泥浮选 还原粘度 矿浆浓度 矿浆粘度 

分 类 号：TD923[矿业工程—选矿]