Zhang, L, Wang, H, Wang, J, Zhang, J & Sun, H 2017, 'Flow characteristics of paste slurry under low atmospheric pressure in high altitude areas', in A Wu & R Jewell (eds), Paste 2017: Proceedings of the 20th International Seminar on Paste and Thickened Tailings
, University of Science and Technology Beijing, Beijing, pp. 74-86, https://doi.org/10.36487/ACG_rep/1752_09_Zhang
This paper establishes a relationship model between low atmospheric pressure and flow characteristics under high altitude conditions based on the theory of viscous fluid mechanics. It analyses and demonstrates that the plastic viscosity of the paste slurry is influenced by changes of atmospheric pressure. An orthogonal experiment is designed using an inclined pipe and measuring the corresponding rheological parameters in Beijing and Lhasa, respectively. Results show that low atmospheric pressure has little effect on the yield stress of the paste slurry, but has certain impact on the plastic viscosity of the slurry.
Bair, S., Winer, W.O. 1990, ‘The high shear stress rheology of liquid lubricants at pressures of 2 to 200 MPa’, Journal of Tribology. vol. 112, no. 2, pp. 246-252.
Belem, T., Benzaazoua, M. 2004, ‘An overview on the use of paste backfill technology as a ground support method in cut-and-fill mines’, in Villaescusa and Potvin (Eds.), Proceedings of the 5th Int. Symp. Ground support in Mining and Underground Construction, pp. 8-30.
Belem, T., Benzaazoua, M. 2008, ‘Design and application of underground mine paste backfill technology’, Geotechnical and Geological Engineering. 2, vol. 26, no. 2, pp. 147-174.
Berrich, E., Aloui, F., Legrand, J. 2011, ‘Inverse method for the dynamical analysis of wall shear rates using three-segment probes in parallel plate rheometer’, Chemical engineering science. vol. 66, no. 17, pp. 3969-3978.
Clark, C.C., Vickery, J.D., Backer, R.R. 1995, ‘Transport of total tailings paste backfill: results of full-scale pipe test loop pumping tests. US Department of the Interior’, Bureau of Mines.
Dzuy, N.Q., Boger, D.V. 1983, ‘Yield stress measurement for concentrated suspensions’, Journal of Rheology, vol. 27, no. 4, pp. 321-349.
Gillies, R.G., Sun, R., Sanders, R.S. 2007, ‘Lowered expectations: the impact of yield stress on sand transport in laminar, non-Newtonian slurry flows’, Journal of the South African Institute of Mining and Metallurgy, vol. 107, no. 6, pp. 351-358.
Hirai, N., Eyring, H. 1959, ‘Bulk viscosity of polymeric systems’, Journal of Polymer Science, vol. 37, no. 131, pp. 51-70.
Hogarth, W.L., Parlange, J.Y., Rose, C.W., Fuentes, C., Haverkamp, R., Walter, M. T. 2005, ‘Interpolation between Darcy–Weisbach and Darcy for laminar and turbulent flows’, Advances in water resources, vol. 28, no. 10, pp. 1028-1031.
Huang, Y.C., Sun, H.H. 2003, ‘Experimental study on the rheological characteristic of paste-like slurry with tailings as aggregate’, Mental Mine, no. 6, pp. 8−10.
Jewell, R.J., Fourie, A.B. 2006, in R.J. Jewell and A.B. Fourie (eds), Paste and Thickened Tailings ‒ A Guide, 2nd edition, Australian Centre for Geomechanics, Perth, Australia, pp. 25−37.
Karasu, S., Toker, O.S., Yilmaz, M.T., Karaman, S., Dertli, E. 2015, ‘Thermal loop test to determine structural changes and thermal stability of creamed honey: Rheological characterization’, Journal of Food Engineering, vol. 150, pp. 90-98.
Liu, T.Y. 2001, ‘Application of filling mining technology’, Beijing: Metallurgical Industry Press, pp. 45-46.
Liu, X.H., Wu A.X., Wang, H.J., Jiao, H.Z, Liu, S.Z., Wang, S.Y. 2014, ‘Experimental study on thixotropic properties of unclassified-tailings paste slurry’, Journal of Wuhan University of Technology (Transportation Science and Engineering), vol. 23, no. 2, pp. 539-541.
Meng, F.Y. 2011, ‘Hydrodynamics and Fluid Machinery’, Higher Education Press, Beijing, pp. 51−57.
Nasir, O., Fall, M. 2009, ‘Modeling the heat development in hydrating CPB structures’, Computers and Geotechnics, vol. 36, no. 7, pp. 1207-1218.
Rawlins, C.A., Phillips, H.R. 2001, ‘Reduction of mine heat loads’, Proceedings of the 7th international mine ventilation congress, pp. 381-389.
Wallevik, J.E. 2009, ‘Rheological properties of cement paste: thixotropic behavior and structural breakdown’, Cement and Concrete Research, vol. 39, no. 1, pp. 14-29.
Wang, H.W. 2010, ‘Optimum material proportion and transportation parameter of multiphase complex paste backfill’, Central South University, Changsha.
Wang, S.Y., Wu, A.X., Yin, S.H., Han, B., Wang, H.J. 2015, ‘Influence factors of pressure loss in pipeline transportation of paste slurry’, Chinese Journal of Engineering, no. 1, pp. 7-12.
Wang, W., Zhu, H., Kee, D.D., Khismatullin, D. 2010, ‘Numerical investigation of the reduction of wall-slip effects for yield stress fluids in a double concentric cylinder rheometer with slotted rotor’, Journal of Rheology, vol. 54, no. 6, pp. 1267-1283.
Wang, X., Zhao, X.Y., Qu, Y.Y., Hu W.W., Chen, J., Wu, M. 2008, ‘Experimental research on particle characteristics and rheological properties of high concentrationed mud’, Metal Mine, vol. 1, pp. 107−109.
Wang, X.M., Li, J.X., Xiao, Z.Z., Xiao, W.G. 2004, ‘Rheological properties of tailing paste slurry’, Journal of Central South University of Technology, vol. 11, no. 1, pp. 75-79.
Wu, A.X., Jiao, H.Z., Wang, H.J., Li H., Yi, H.B., Liu, X.H., Liu, S.Z. 2013, ‘Yield stress measurements and optimization of paste tailings’, Journal of Central South University: Science and Technology, vol. 44, no. 8, pp. 3370−3376.