Authors: Wu, AX; Cheng, H; Yang, Y; Zhang, L
Editors: Wu, A; Jewell, R
Conference: 20th International Seminar on Paste and Thickened Tailings, 16-18 June, Beijing
Published: University of Science and Technology Beijing, Proceedings of the 20th International Seminar on Paste and Thickened Tailings, pp.2-11, Beijing
As paste technology can effectively ensure safe mining conditions and realize green mining, it has been popularized and widely applied in China in recent years. Meanwhile, with the development of intelligent control, precise preparation and personalized filling, studies on paste technology in China have also been deepened. In this paper, the basic concepts and characteristics of paste technology were introduced, and the development of paste technology in China was analyzed statistically. It systematically analyzed the latest research progress in thickening dewatering of unclassified tailings, pipeline transportation of structure flow, multi-field influence in stopes, development of new materials and construction of paste engineering laboratory. The practical effects of paste technology in underground backfill and surface deposition were also introduced. In the future, paste technology will achieve great breakthroughs by digitization and intelligence and realize adaptive control of concentration, precision preparation of paste, personalized filling of stopes and 3D and modular design and assembly of system, leading mining industry in China to the path of green development.
Wu, AX, Cheng, H, Yang, Y & Zhang, L 2017, 'Development and challenge of paste technology in China', in A Wu & R Jewell (eds), Proceedings of the 20th International Seminar on Paste and Thickened Tailings
, University of Science and Technology Beijing, Beijing, pp. 2-11.
Ao, S.F., Cui, M.J., Shi, Z.L., Zhang, C.H., Zhang, X., Hong, W. and Chen, L.K. 2016, ‘The industrial practice and application of resources comprehensive utilization technologies in Huize Lead-zinc Mine’, China Mining Magazine, vol. 25, no. 11, pp. 102-106.
Chen, H.J. and Liu, Q.J. 2009, ‘Harms and resource-like treatment of the solid wastes from metal mines’, Metal Mine, no. 4, pp. 154-156.
Chen, Y.G. and Zhang, K.N. 2005, ‘Comprehensive treatment and application of solid waste of mines’, Resources Environment and Engineering, no. 4, pp. 311-313.
Cui, Y., Pang, J.L. and Zhang, D. 2013, ‘Optimization of mining pumping filling system for paste and paste-like’, Journal of Liaoning Technical University (Natural Science Edition), no. 7, pp. 891-895.
Cui, Z.D. and Sun, H.H. 2010, ‘The preparation and properties of coal gangue based sialite paste-like backfill material’, Journal of China Coal Society, vol. 35, no. 6, pp. 896-899.
Fall, M., Célestin, J. and Sen, H.F. 2010, ‘Potential use of densified polymer-pastefill mixture as waste containment barrier materials’, Waste Management, vol. 30, no. 12, pp. 2570-2578.
Fu, C.H., Ni, W., Zhang, X.F., Wang, Z.J. and Tian, M.Y. 2011, ‘Slag-fly ash based cementitious materials special for high performance concrete’, Journal of University of Science and Technology Beijing, vol. 33, no. 5, pp. 606-613.
Ghirian, A. and Fall, M. 2013, ‘Coupled thermo-hydro-mechanical–chemical behaviour of cemented paste backfill in column experiments. Part I: Physical, hydraulic and thermal processes and characteristics’, Engineering Geology, pp. 195–207.
Jewell, R.J. and Fourie, A.B. 2002, ‘Paste and Thickened Tailings ‒ A Guide’, Australian Centre for Geomechanics, Perth, pp. 2-30.
Ji, X.W. and Yan, Q.W. 2006, ‘Technology research on cement backfilling based on unclassified tailings and water quenched slag in chihong company’, Nonferrous Metals (Mine Section), no. 2, pp. 11-13.
Jiao, H.Z., Wu, A.X., Wang, H.J., Liu, X.H., Yang, S.K. and Xiao Y.T. 2011, ‘Experiment study on the flocculation settlement characteristic of unclassified tailings’, Journal of University of Science and Technology Beijing, no. 12, pp. 1437-1441.
Li, F.X. and Chen, Y.Z. 2009, ‘Properties and microstructure of marine concrete with composite mineral admixture’, Journal of Wuhan University of Technology-Materials Science Edition, vol. 24, no. 3, pp. 497-501.
Li, H.Q. and Fang, L.G. 2004, ‘Investigation on the characteristics of paste pumping into the empty area and the reducing pumping resistance’, Journal of Hunan University of Science and Technology (Natural Science Edition), vol. 19, no. 1, pp. 31-34.
Li, Y.B. 2004, ‘Experimental study and application of paste pumping filling technology in mining area No.2 of Jinchuan Nickel Mine’, Nonferrous Metals (Mine Section), no. 5, pp. 9-11.
Liu, Q.Q. 1998, ‘LDV measurements and experimental study of water and sediment two phase flow’, Journal of Sediment Research, no. 2, pp. 74-82.
Liu, T.Y. 2001, ‘Technology and application on cut and fill mining’, Metallurgical Industry Press, Beijing.
Lu, S.L. 2011, ‘Research of world energy issues and China energy security’, PhD thesis, Party School of the Central Committee of CPC, Beijing.
Qian, M.G., Miao, X.X., Xu, J.L. and Cao, S. 2008, ‘On scientized mining’, Journal of Mining and Safety Engineering, vol. 25, no. 1, pp. 1-10.
Ruan, Z.E. 2015, ‘Numerical simulation of the flocculation and settling behavior of the whole-tailings particles in deep-cone thickener’, Master thesis, University of Science and Technology Beijing, Beijing.
Wang, B. 2014, ‘Research on the evaluation of green mining in China’, PhD thesis, China University of Geosciences (Beijing), Beijing.
Wang, D.C., Yu, M.Z. and Wang, X.K. 2000, ‘Experimental study on the particle motion in open channel flow’, Journal of Basic Science and Engineering, no. 3, pp. 301-309.
Wang, G.Q. 1989, ‘Theoretical and experimental study on the motion of solid-liquid two-phase flow and particle flow’, PhD thesis, Tsinghua University, Beijing.
Wang, X.M., Gu, D.S. and Zhang, Q.L. 2010, ‘Filling theory and pipeline transportation technology in deep mine’, Central South University Press, Changsha.
Wang, Y., Wang, H.J. and Wu, A.X. 2011, ‘Mathematical model of deep cone thickener underflow concentration based on the height to diameter ratio’, Journal of Wuhan University of Technology, no. 8, pp. 113-117.
Wang, Y., Wu, A.X., Wang, H.J., Yang, X.X., Zhou, F.L. and Zhou, B. 2014, ‘Further development of paste definition from the viewpoint of yield stress’, Journal of University of Science and Technology Beijing, no. 7, pp. 855-860.
Wang, Y., Wu, A.X., Wang, H.J., Yin, S.H., Liu, H.J. and Kang, C.D. 2013, ‘A method to determine deep cone thickener volume and its application’, Journal of China University of Mining and Technology, no. 1, pp. 45-49.
Wu, A.X., Cheng, H.Y., Wang, Y.M., Wang, H.J., Liu, X.H. and Li G.C. 2016, ‘Transport resistance characteristic of paste pipeline considering effect of wall slip’, The Chinese Journal of Nonferrous Metals, no. 1, pp. 180-187.
Wu, A.X., Jiao, H.Z., Wang, H.J., Yang, S.K., Yao, G.H. and Liu, X.H. 2012, ‘Mechanical model of scraper rake torque in deep-cone thickener’, Journal of Central South University (Science and Technology), no. 4, pp. 1469-1474.
Wu, AX, Liu, X.H., Wang, H.J., Wang, Y.M., Jiao, H.Z. and Liu S.Z. 2014, ‘Resistance characteristics of structure fluid backfilling slurry in pipeline transport’, Journal of Central South University (Science and Technology), no. 12, pp. 4325-4330.
Wu, A.X. and Wang, H.J. 2015, ‘Theory and technology of paste backfilling on metal ore’, Science Press, Beijing.
Wu, A.X., Wang, Y. and Wang, H.J. 2016, ‘Status and prospects of the paste backfill technology’, Metal Mine, no. 7, pp. 1-9.
Wu, A.X., Wang, Y.M. and Wang, H.J. 2015, ‘Estimation model for yield stress of fresh uncemented thickened tailings: Coupled effects of true solid density, bulk density, and solid concentration’, International Journal of Mineral Processing, vol. 143, pp. 117-124.
Wu, A.X., Wang, Y.M., Wang, H.J., Ai, C.M., Zhou, B., Yang, X.X. and Zhou, F.L. 2014, ‘Paste fill system designs for a broken and water-rich copper mine’, in R.J. Jewell, A.B. Fourie, P.S. Wells and D. Van Zyl (eds), Proceedings of the 17th International Seminar on Paste and Thickened Tailings, Australian Centre for Geomechanics, Perth, pp. 654-655.
Wu, A.X., Wang, Y.M., Wang, H.J., Yin, S.H. and Miao, X.X. 2015, ‘Coupled effects of cement type and water quality on the properties of cemented paste backfill’, International Journal of Mineral Processing, vol. 143, pp. 65-71.
Wu, A.X., Yang, S.K., Wang, H.J., Jiao, H.Z. and Xiao, Y.T. 2011, ‘Status and trend of paste disposal technology for superfine unclassified tailings’, Mining Technology, no. 3, pp. 4-8.
Xie, H.P., Gao, F., Ju, Y., Ge, S.R., Wang, G.F., Zhang, R., Gao, M.Z., Wu, G. and Liu, J.Z. 2017, ‘Theoretical and technological conception of the fluidization mining for deep coal resources’, Journal of China Coal Society, vol. 42, no. 3, pp. 547-556.
Xu, Z.J., Hou, H.P., Zhang, S.L., Ding, Z.Y., Ma, C.Z., Gong, Y.L. and Liu, Y.J. 2012, ‘Effects of mining activity and climatic change on ecological losses in coal mining areas’, Transactions of the Chinese Society of Agricultural Engineering, vol. 28, no. 5, pp. 232-240.
Yan, A.Y., Ni, W., Huang, X.Y., Zhang, J.W., Li, Y.Q. and Xu, D. 2016, ‘Solidification/stabilization of Pb2+ within a blast furnace slag-steel slag based cementing agent for paste backfilling’, Journal of University of Science and Technology Beijing, no. 7, pp. 899-905.
Yu, N.Z. 2016, ‘Green mining and paste filling’, Nonferrous Metals Design, no. 1, pp. 1-5.
Zeng, J.J., Shui, Z.H. and Wang, G.M. 2010, ‘The early hydration and strength development of high-strength precast concrete with cement/metakaolin systems’, Journal of Wuhan University of Technology- Materials Science Edition. vol. 25, no. 4, pp. 712-716.
Zhang, D.S., Liu, H.L., Fan, G.W., and Wang, X.F. 2015, ‘Connotation and prospection on scientific mining of large Xinjiang coal base’, Journal of Mining and Safety Engineering, vol. 32, no. 1, pp. 1-6.
Zhu, L.P., Ni, W., Huang, D., Hui, M. and Gao, S.J. 2011, ‘Whole-tailings backfilling materials with fly ash’, Journal of University of Science and Technology Beijing, vol. 33, no. 10, pp. 1190-1196.
Zou, Y. 2016, ‘Study on water hammer characteristics of solid-liquid mixture for coarse particle in pipe flow’, Master thesis, Minzu University of China, Beijing.