工程科学学报2017，Vol.39Issue(5)：663-668,6.DOI:10.13374/j.issn2095-9389.2017.05.003
铜尾矿流变特性与管道输送阻力计算
Study of the rheological characteristics of copper tailings and calculation of resistance in pipeline transportation
摘要
Abstract
Rheological characteristics are fundamental to pipeline system design. Rheological tests were conducted to obtain the yield stress and viscosity index at different mass fractions. Slump tests were conducted to investigate the mobility of tailings slurry. Results show that the yield stress increases with the increase of mass fraction, especially when mass fraction is greater than 70%. After stirring in a high-speed activation stirrer, the yield stress in 70% mass fraction is decreased by 40. 9%. When the mass fractions are lower than 74%, high slump values are obtained. Based on the basic parameters obtained in the rheological tests, the key parameters of the pipeline system were calculated, including the critical flow rate and frictional resistance loss. These analyses results could serve as references for pipeline system design.关键词
采矿工程/尾矿/流变特性/坍落度/摩阻损失Key words
mining engineering/tailings/rheological characteristic/slump test/frictional resistance loss分类
矿业与冶金引用本文复制引用
杨超,郭利杰,张林,胡黎明,许文远..铜尾矿流变特性与管道输送阻力计算[J].工程科学学报,2017,39(5):663-668,6.基金项目
国家自然科学基金资助项目(51579132) （51579132）
国家国际科技合作专项资助项目(2014DFR70340) （2014DFR70340）
