Authors: Wu, A-X; Jiao, H-Z; Wang, H-J; Yang, S-K; Li, L; Yan, Q-W; Liu, H-J

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Wu, A-X, Jiao, H-Z, Wang, H-J, Yang, S-K, Li, L, Yan, Q-W & Liu, H-J 2011, 'Status and development trends of paste disposal technology with ultra-fine unclassified tailings in China', in R Jewell & AB Fourie (eds), Proceedings of the 14th International Seminar on Paste and Thickened Tailings, Australian Centre for Geomechanics, Perth, pp. 477-489.

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Currently, China mostly deals with ultra-fine unclassified tailings using surface low-concentration discharge or underground backfilling. The former requires too much time for tailings slurry to consolidate, and creates poor stability for the tailings dam, and the latter has concentration problem, which can cause segregation. At the present time, China is trying to develop surface paste discharge and paste filling technologies. The paper describes the evolution of surface paste disposal in China, analyses the application requirements and technical characteristics of surface paste disposal, and describes the progress of paste filling technologies in terms of tailings dewatering and thickening, mixing and preparation, and pipeline transport. Both the Wushan Copper Mine and Huize lead-zinc mine are typical of the mines in China to use relevant technology to deal with ultra-fine unclassified tailings. These mines have the largest scale of production and higher automisation respectively in surface paste disposal and paste filling, and achieve great application success. The paper analyses the problems existing in the application of paste disposal technology with ultra-fine unclassified tailings in China, which mainly include the limitation of equipment manufacturing ability and high investment in the surface paste stacking and filling, and the key technology is developing. It puts forward the development trends of paste disposal technology, which will make breakthroughs in terms of basic theories and specific equipment for unclassified paste disposal, the spread of qualification to adopt paste disposal technology, and co-disposal technology of tailings and rock dumps.

Blight, G.E. and Bentel, G.M. (1983) The behaviour of mine tailings during hydraulic deposition, Journal of the South African Institute of Mining and Metallurgy, Vol. 83, No. 4, pp. 73–86.
Cui, L., Wang, J.B., Sun, H.R. and Li, Y.H. (1998) Study on improving the density of discharged sand pulp from silo, Gold, Vol. 6, pp. 20–22.
Cui, X.Q., Lu, X.J. and Ge, H.C. (2006) Experimental study of classifying thickening of total tailings in a gold mine, Express Information of Ming Industry, Vol. 10(10), pp. 33–36.
Cui, X.Q., Lv, X.J., Ge, H.C. and Liu, L. (2007) Application classified thickening process in tailing dehydration of Beiminghe iron mine, China Mining Magazine, Vol. 16(2), pp. 73–76.
Du, T., Yun, B.J., Zhang, D.W. and Liu, Q.L. (2009) Discusses the harms and measures on safety management of tailings pond, Journal of Hebei Polytechnic University (Natural Science Edition), Vol. 5, pp. 9–12.
Fourie, A.B., Blight, G.E. and Papageorgious, G. (2001) Static liquefaction as a possible explanation for the Merriespruit tailings dam failure, Canadian Geotechnical Journal, Vol. 38, pp. 707–719.
Geng, M.X. (2002) The application of the system of hydraulic fill and consolidated fill with tails, Gold, Vol. 21(26), pp. 26–29.
Gonzales, V. (2005) Cobriza’s Cu tailings surface stacking, in Proceedings Eighth International Seminar on Paste and Thickened Tailings (Paste05), R.J. Jewell and S. Barrera (eds), 20–22 April 2005, Santiago, Chile, Australian Centre for Geomechanics, Perth, pp. 261–274.
He, Z.X. and Gu, D.S. (2008) Development of research on hydraulic transport of mine filling in pipelines, Nonferrous Mines, Vol. 60(3), pp. 116–120.
He, Z.X., Xie, K.W., Zhang, C.Q. and Xie, C.J. (2000) Activating mixing technology and its application in mine backfill, Gold, Vol. 9, pp. 18–20.
Jiao, H.Z., Wang, H.J., Wu, A.X., Ji, X.W., Yan, Q.W. and Li, X. (2010) Rule and mechanism of flocculation sedimentation of unclassified tailings, Journal of University of Science and Technology Beijing, Vol. (6), p. 702.
Li, D.Q., Yang, C.X. and Shi, S.H. (2009) Research of the application of total tailing high density backfilling technology in deep underground mine, Metalmine, Vol. 7, pp. 13–16.
Lin, Y.S. and Zhang, W. (2006) Geohazard and risk assessment for tailing reservoir, Journal of Guilin University of Technology, Vol. 10, pp. 486–490.
Liu, X.H., Wu, A.X. and Wang, H.J. (2009) A primary discussion on the thickening law of paste-filling, Metal Mine, September, p. 38.
Liu, X.H., Wu, A.X. and Wang, C.L. (2010) Research on application of the microseismic monitoring system in Yunnan Huize Lead-Zinc Mine, Metal Mine, Vol. 1, pp. 35–37.
Liu, Y.B., Chen, J.Z. and Yang, Y.R. (2006) Numerical simulation of liquid-solid two-phase flow in slurry pipeline transportation, Journal of Zhejiang University (Engineering Science), Vol. 5, pp. 859–864.
Luo, M.J. (2009) A Discussion about dry storage of tailings, Journal of Nonferrous Metals Engineering and Research, Vol. 30(6), pp. 27–29.
Qi, H.L. (2007) A discussion on disposal methods of alumina red mud, Journal of Nonferrous Metals Engineering and Research, Vol. 28(23), pp. 121–125.
Rao, P.P. (2008) Research on the stability of the Plains Red Mud Tailings Dam in the Alumina Refinery of Ping Guo in Guangxi, Guangxi University, 6 p.
Sun, Y., Liu, H.F. and Liu, J.M. (2009) Current problems in the disposal of non-ferrous metallic tailings, Metal mine, Vol. 5, pp. 6–11.
Theriault, J.A., Frostiak, J. and Welch, D. (2003) Surface disposal of paste tailings at the Bulyanhulu Gold Mine, Tanzania, paper presented at Sudbury Mining and Environment Conference, Sudbury, Ontario, Canada.
Wang, H.J., Wu, A.X, Xiao, W.G., Zeng, P.H., Ji, X.W. and Yan, Q.W. (2009) The Progresses of Coarse Paste Fill Technology and its Existing Problem, Metal Mine, Vol. 401, pp. 1–5.
Wang, R., Zhang, J.R. and Dai, S.J. (2010) Utilization situation and development direction of non-ferrous metal mine tailings in China, Modern Mining, Vol. 6(6), pp. 6–9.
Wang, T. and Guo, Z.S. (2008) Discusses on the identification of dangerous harmful factors and safety management measures in tailings pond gold, Vol. 4, pp. 51–55.
Wei, Z.A. (2004) Research on the characteristics and dam stability of fine grained tailings, Chongqing University, 4 p.
Xie, W., Sui, L.J. and He, Z.X. (2008) Current situation of tailings disposal technology and assumption, Express Information of Mining Industry, Vol. 5(5), pp. 10–12.
Xie, X.Y., Tian, W.Q., Wang, Y.H. and Zhang, X.K. (2009) The safety analysis of current situation and management countermeasure on tailing reservoir in China, Journal of Safety Science and Technology, Vol. 5(2), pp. 5–9.
Yuan, Z.G., Zhao, J. and Zhang, X.M. (2008) Application and practice of downward delamination cemented tailings filling stoping method in Daling Mine, Gold, Vol. 5(29), pp. 25–29.
Zhang, C.Q. (2000) Optimizing the structures and parameters of enforced activation agitators for highly concentrated cemented fill, Gold, Vol. 4, pp. 26–28.
Zhang, C.S., Wang, C. and F.Y. (2004) Study on restraining surficial mud on unclassified tailings filling body, Mining & Metallurgy, Vol. 9, pp. 1–5.
Zhang, J.R., Xu, H. and Rao, J. (2005) Recycling economy and resourceful disposal of mine tailings, Multipurpose Utilization of Mineral Resource, Vol. 6, pp. 29–32.
Zhou, H.Q., Quan, Y.H., Zheng, B.C. and Zhao, C.Z. (2007) Proportioning of paste backfilling materials to moisture and its allowable measurement error, Journal of Mining and Safety Engineering, Vol. 24(3), pp. 270–274.
Zhou, B. and Wu, A.X. (2002) The development and application of no (low) waste mining technology in underground mines, Express Information of Mining Industry, May, pp. 1–3.

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