%0 Journal Article
%T 焦家金矿尾矿旋流器溢流流变特性研究<br>Study on Overflow Rheological Characteristics of Tailings Cyclone for Jiaojia Gold Mine
%A 陈国栋
%A 王志明
%A 张超
%A 王丽
%J Advances in Geosciences
%P 118-127
%@ 2163-3975
%D 2023
%I Hans Publishing
%R 10.12677/AG.2023.132011
%X 以焦家金矿旋流器溢流的细粒尾矿为主要原料，通过对尾矿开展化学成分分析、物相组成分析、粒度分布、密度、塌落度测定、料浆流动性试验等研究，查明了尾矿的基本性质，提出了适宜的输送工艺参数。高浓度尾砂料浆的流变特性服从屈服假塑形体流变规律；当剪切速率达到20 s<sup>？1</sup>后，尾砂料浆的流变特性都近似服从宾汉体流变规律。随着尾矿浓度的增大，粘度及屈服应力逐渐增大，而塌落度与扩展度都有减小的趋势，最佳尾矿料浆适宜固结浓度为70%~72%。<br />
Takes the fine-grained tailings of cyclone overflow of Jiaojia gold mine as the main raw material, the basic properties of tailings were found out and the appropriate transportation process parameters were put forward through chemical composition analysis, phase composition analysis, particle size distribution, density, slump determination and slurry fluidity test. The rheological properties of high concentration tailings slurry obey the rheological law of yield pseudoplastic body. When the shear rate reaches 20 s<sup>？1</sup>, the rheological properties of tailings slurry approximately obey Bingham fluid rheological law. With the increase of tailings slurry concentration, the viscosity and yield stress gradually increase, while the slump and extension degree have a decreasing trend. The optimal consolidation concentration of tailings slurry is 70%~72%.
%K 微细粒尾矿，流变特性，塌落度，扩展度，充填倍线<br>Fine Tailings
%K Rheological Characteristics
%K Slump
%K Extension Degree
%K Stowing Gradient
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=61583