In response to the issues of poor settling of fine-grained tailings,turbidity of water overflow,and inadequate homogeneity of slurry caused by polarization of particle size in a specific mine,a method of rapid flocculation and sedimentation using a combination of flocculant and carbide slag was proposed.The stirring effect of a high-power mixer was investigated through numerical simulations.Firstly,the basic physical properties of tailings were determined through experiments to determine the optimal dosage of carbide slag.Secondly,the homogeneity of slurry after mixing fine-grained tailings in a high-power mixer was analyzed using numerical simulation technology.Finally,industrial experiments were conducted to verify the filling effect.The results are concluded as follows.The optimal flocculant is BKY10,the optimal flocculant dosage is 40 g/t,the optimal tailings slurry feed mass concentration is 10％,and the optimal carbide slag dosage is 4000 g/t.The DQJ01 dual axis horizontal high-power mixer can fully disperse the materials,with good mixing effect and high homogeneity of the prepared filling slurry.After the completion and debugging of the mine filling system,it can be used normally and the filling effect is good,laying the foundation for reducing ore loss and impoverishment,improving the economic benefits of the mine,and protecting the ecological environment.
关键词
细尾砂/絮凝沉降/均质化搅拌设备/电石渣/充填体强度
Key words
Fine-grained tailings/Flocculation and settlement/Homogenization mixer/Carbide slag/Strength of filling body
维普
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