Study of the rheological characteristics of copper tailings and calculation of resistance in pipeline transportation

YANG Chao; GUO Li-jie; ZHANG Lin; HU Li-ming; XU Wen-yuan

doi:10.13374/j.issn2095-9389.2017.05.003

Volume 39 Issue 5

May 2017

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YANG Chao, GUO Li-jie, ZHANG Lin, HU Li-ming, XU Wen-yuan. Study of the rheological characteristics of copper tailings and calculation of resistance in pipeline transportation[J]. Chinese Journal of Engineering, 2017, 39(5): 663-668. doi: 10.13374/j.issn2095-9389.2017.05.003

Citation:

YANG Chao, GUO Li-jie, ZHANG Lin, HU Li-ming, XU Wen-yuan. Study of the rheological characteristics of copper tailings and calculation of resistance in pipeline transportation[J]. Chinese Journal of Engineering, 2017, 39(5): 663-668. doi: 10.13374/j.issn2095-9389.2017.05.003

Citation:

YANG Chao, GUO Li-jie, ZHANG Lin, HU Li-ming, XU Wen-yuan. Study of the rheological characteristics of copper tailings and calculation of resistance in pipeline transportation[J]. Chinese Journal of Engineering, 2017, 39(5): 663-668. doi: 10.13374/j.issn2095-9389.2017.05.003

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Study of the rheological characteristics of copper tailings and calculation of resistance in pipeline transportation

doi: 10.13374/j.issn2095-9389.2017.05.003

1) Beijing General Research Institute of Mining & Metallurgy, Beijing 102628, China
2) State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China

Received Date: 2016-07-20

Abstract

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.
- mining engineering,
- tailings,
- rheological characteristic,
- slump test,
- frictional resistance loss

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References(5)

References

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