Experimental study of dehydration-consolidation of full tailings filling slurry using electro-osmosis method
WANG Bingwen1，LI Quanming2，GAO Lijing1，XIONG Tingyong1，LI Yanan1，WANG Zhenyu1
(1. College of Resource and Safety Engineering，China University of Mining and Technology，Beijing 100083，China；2. China Academy of Safety Science and Technology，Beijing 100012，China)
Abstract：To explore the law of dehydration-consolidation of full tailings filling slurry in the case of Electro-osmosis，the dehydration test of the full tailings with cemented and non-cemented filling slurries were conducted on the self-made electro-osmotic dehydration and natural dehydration test device. After monitoring series factors, like the height of filling slurry，temperature，drainage，electric current，anode and cathode moisture content，power consumption and testing blocks strength of the backfills，the characteristics of dehydration- consolidation in full tailings filling slurry under different conditions were compared. The following conclusions are drawn：(1) The effect of electro-osmotic dehydration is obvious under the situation of full tailings non-cemented filling slurry；(2) The effect of electro-osmotic dehydration in the filling slurry is mainly related to the physicochemical properties of the filling slurry itself；(3) The energy consumption coefficient in the process of electro-osmosis is gradually increasing. The power supply can increase the temperature and resistivity of the backfills，with the anode seriously corroded；(4) When arranging the electrodes longitudinally，it can?t be energized when the overflow water has not been drained，otherwise violent electrolysis phenomenon will be observed.
王炳文1，李全明2，高利晶1，熊庭永1，李亚楠1，王振宇1. 全尾砂充填料浆电渗脱水固结试验研究[J]. 岩石力学与工程学报, 2019, 38(S1): 3163-3170.
WANG Bingwen1，LI Quanming2，GAO Lijing1，XIONG Tingyong1，LI Yanan1，WANG Zhenyu1. Experimental study of dehydration-consolidation of full tailings filling slurry using electro-osmosis method. , 2019, 38(S1): 3163-3170.
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2019, Vol. 38 
