Influence of Different Rheological Agents on the Filling Performance of Full Tailings Paste in a Mine
In order to ensure the safe and efficient transportation of the full tailings paste filling slurry in a mine,the effect of different types and dosages of rheological agents on rheological properties of the slurry and strength of the filling body were analyzed by qualitative and quantitative perspectives.The results show that after adding three types of rheological agents,the rheological properties of the paste filling slurry are significantly improved in general,and the more the dosage,the greater the decrease in rheological parameters.However,excessive dosage can cause segregation and sedimentation of the slurry.The addition of rheological agents has an impact on the strength of the filling material at 1 d,but has almost no effect on the strength at 3,7,14,and 28 d.The optimal rheological agent selection is YSKJ01,and when the dosage is 0.4％,the filling performance of the full tailings paste reaches the optimal value.From the microscopic perspective,the mechanism of the rheological agent to improve the rheological properties of the full tailings cemented filling slurry is expounded,which provides a reference for the design of the full tailings paste filling ratio of the mine.
Filling slurryRheological agentsRheological propertyStrength of filling body
万方数据
维普
