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Modern Mining ›› 2013, Vol. 29 ›› Issue (05): 17-19.

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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

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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