Rheological properties of tailing paste slurry

Abstract

The initial shear stress (τ) and plastic cohesion (η) are the most important parameters reflecting the rheological properties of the paste slurry. The rheological parameters as well as the quantitative relationship among the consumption of different fill materials were obtained through the experiment and research on these parameters. They can be used to predict the scope of the values of τ and η in production for a given ratio, which can reduce the conveying resistance of fill slurry along the pipelines and avoid the blockage of the pipelines. It is found that the rheological model of the total tailing slurry belongs to the Bingham type, which has a feature of strong internal structure and large initial shear stress. The calculation formula for the resistance loss of pipelines conforms nicely to the field test and the actual production in Jinchuan Nickel Mine.

Keywords

fill / rheological property / regression analysis / reliability / engineering average / tailing paste slurry

References

[1] PattersonA J C, LazarusJ H. The anomalous flow behavior of high-concentration total tailings used as backfill [A]. Proceedings of MINEFILL [C], 1993, Johanuesburg, Johanuesburg University: 261-275

[2] JamesF ABeneficial Impacts of Paste Tailings on Environmental Hazard Mitigation and Engineering Performance Improvement[D], 1997, Ontario, Department of Mining Engineering Queen’s University at Kingston: 40-46

[3] JamesF A, FerriHMining with Backfilling, an Operator’s Guide, an Interactive CD-ROM for Mining Operators and Engineers[M], 2002, Ontario, Department of Mining Engineering Queen’s University at Kingston

[4] LandriaultDAPaste backfill mix design for Canadian underground hard rock mining [A], 1995, Halitax, Nova Scotia: 14-18

[5] BuchanA J, SpearingA J S. The effects of corrosion on the wear rate of steel pipelines conveying backfilling slurry [J]. Journal of the South African Institute of Mining and Metallurgy, 1993, 22(6): 56-61

[6] BlossM J. Cemented rock fill research at Mount Isa Mines Limited 1997[A]. Proceedings of Minefill [C], 1998, Melbourne, The Australia Institute of Mining and Metallurgy: 95-101

[7] WU Ai-xiang, HU Hua, GU De-sheng, et al. The new development of continuous mass mining technology research in China[J]. Austral Inst Min Metall Publ Ser, 2000, (7): 877–880.

[8] AndreP. Noranda’s participation in continuous mining development[J]. CIM Bulletin, 1996, 89(1000): 38-39

[9] MorrisonD M. Deep hardrock mining: the future[J]. CIM Bulletin, 1996, 89(1000): 46-51

[10] LuXuanApplied Statistics [M], 1998, Beijing, Tsinghua University Press: 115-126(in Chinese)

[11] XiaoWei-guoThe Research of the Fill Technique in Deep Mining [D], 2002, Changsha, Central South University: 48-57(in Chinese)

[12] Probability and Statistics Teaching Group at Beijing UniversityOrthonormal Design [M], 1963, Beijing, Petroleum Chemistry Industry Press: 178-192(in Chinese)

[13] FarzamH. The USA of unique admixture technologies in mine backfill[J]. Technical Director, Business Development, Materials Builders, 1998, 3: 87-91

[14] CasteelK. Towards continuous flow underground[J]. World Mining Equipment, 1993, 11: 28-34

[15] PengXu-cheng, ZouHen-chunThe backfilling theory and its applications [M], 1998, Changsha, Central South University Press: 201-216(in Chinese)