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现代矿业 ›› 2013, Vol. 29 ›› Issue (05): 17-19.

• 采选工程 • 上一篇    下一篇

基于H-B指数的谦比希铜矿全尾砂浆临界浓度确定

胡文达1,2,3,焦华喆1,2,王贻明1,2,吴爱祥1,2,张晋军1,2,3,施发伍1,2,3   

  1. 1.金属矿山高效开采与安全教育部重点实验室;2.北京科技大学土木与环境工程学院;3.中色非洲矿业有限责任公司谦比希铜矿
  • 出版日期:2013-05-15 发布日期:2013-06-13
  • 基金资助:

    * 国家自然科学基金项目(编号:50934002,51104011,51074013);长江学者和创新团队发展计划资助项目(编号:IRT0950);低品位难处理黄金资源综合利用国家重点实验室开放基金(编号:ZJKY2011(B)KFJJ004)。

Confirmation of Critical Concentration of Full Tailings Slurryof The Chambishi Copper Mine which based on H-B Index

Hu Wenda1,2,3,Jiao Huazhe1,2,Wang Yiming1,2,Wu Aixiang1,2,Zhang Jinjun1,2,3,Shi Fawu1,2,3   

  1. 1.Key Laboratory of Metal Mine High Efficient Mining and Safety of Ministry of Education;2.Civil and Environmental Engineering School of University of Science and Technology Beijing;3.Chambishi Copper Mine of China Nonferrous Metals Africa Mining Co.,Ltd.
  • Online:2013-05-15 Published:2013-06-13

摘要: 基于H-B流变模型预测谦比希铜矿全尾砂浆重力脱水极限浓度。利用桨式转子流变仪检测不同浓度浆体流变曲线,然后采用H-B模型回归浆体流变参数,最后分析得到流动指数n=1时的浆体浓度为极限浓度。结果表明,流动指数n值随浓度增大而单调减小;浓度为69%、70%左右时,n值最接近1,n=1时的回归浓度为69.11%;全尾砂浆脱水的工业预测值最大约为69%。

关键词: H-B流变指数, 全尾砂浆, 脱水浓缩, 临界浓度

Abstract: Limiting concentration of full tailings slurry of Chanbishi Copper Mine by gravity dehydration was predicted based on H-B rheological model. Using propeller type rotor rheometer to test slurry rheology curve of different concentration, then adopted H-B model regress slurry rheology parameters, finally obtained slurry concentration is the limiting concentration when flow index n=1 through analysis. The results indicated, flow index n value monotonically reduced with concentration increasing; when concentration was around 69%、70%, n value was mostly close to 1, regression concentration was 69.11% when n=1; the maximum industry predictive value of full tailings slurry dehydration was around 69%.

Key words: H-B rheological index, Full tailings slurry, Dehydration concentration, Critical concentration