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《Journal of Wuhan University of Technology(Transportation Science & Engineering)》 2014-03
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Experimental Studies on the Thixotropic Characteristics of Unclassified-tailings Paste Slurry

LIU Xiaohui;WU Aixiang;WANG Hongjiang;JIAO Huazhe;LIU Shizong;WANG Shaoyong;Key Laboratory of Educational Ministry for High Efficient Mining and Safety in Mental Mine;  
In this paper,according to the thixotropic behavior of tailings paste in flowing process,which was classified as shear failure and stand recovery.Some indexes such as thixotropic amountΔτ,thixotropic time te,structure failure coefficientλand structure recovery coefficientξwere put forward for quantitatively describing thixotropic process.By constant shear rate rheological experiment under various conditions,the influences of shear rate,paste concentrations,the addition of flocculent and standing time for thixotropic characteristics of tailings paste were studied.The results showed that:shear rate,paste concentrations and the addition of flocculent had various degrees positive effects;the higher the concentrations of tailings paste,the faster the speed of structure recovery in standing conditions.In the end,the experiment phenomena were explained,and their respective industrial interest were discussed.
【Fund】: 国家“十二五”科技支撑计划项目(批准号:2012BAB08B02);; 国家自然科学基金重点项目(批准号:50934002;51104011)资助
【CateGory Index】: TD926.4
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