酸性废水并入尾砂输送对尾砂特性影响的研究

Study on the Effect of the Combined Transportation of Tailings with Acid Waste Water on the Tailings Characteristics

为分析确定德兴铜矿酸性废水混入尾砂直接混合输送的可能性,开展了不同比例废水混入尾砂的工业试验,测试分析了酸性水混入后尾矿浆水质、尾矿输送与分级系统、尾矿分级性能、尾矿砂物理力学性质等参数的变化情况。试验表明,酸性废水混入尾砂后,将对尾砂特性及坝体稳定性带来不良影响。

For analysing the possibility of the combined transportation of tailings with acid waste water,industrial tests on the transportation of tailings mixed with acid water in various ratios were carried out and the changes caused by the acid water addition in the water quality of tailings pulp,the performances of the tailings classification,the tailings transportation and classification system and the physical and mechanical properties of the tailings sand were measured and analysed.The results have shown that the mixing of acid waste water into tailings can bring detrimental effects on the tailings characteristics and the stability of the dam body