深锥固体通量与絮凝剂单耗和料浆浓度的数学关系

深锥浓密机的面积或占地大小主要由其固体通量决定。通过量筒静态沉降实验，计算得到深锥浓密机固体通量，分析了絮凝剂单耗、料浆浓度对深锥浓密机固体通量的影响，得到了两种因素对深锥浓密机固体通量的影响规律。结果表明，尾矿在5～30 g·t?1的絮凝剂单耗下，基本呈现二次函数关系；料浆的固相质量分数为6%～26%时，固体通量呈现先增大后减小的趋势，与实验所得的规律相契合。通过对絮凝剂单耗和料浆浓度耦合效应下的固体通量方程回归分析，得到三者之间的数学关系，进而确定二者对固体通量的贡献为:料浆浓度>絮凝剂单耗。结合絮凝剂及料浆浓度对固体通量的影响分析，总结了絮凝剂单耗和料浆浓度贡献值不同的原因。最后，结合单因素和耦合条件下的数学方程，对深锥浓密机的设计和运行提出工程建议。在深锥浓密机运行过程中，需要优先保证料浆浓度，其次是絮凝剂单耗。 

Mathematical relationship between the solid flux of deep cone thickener,flocculant unit consumption,and slurry concentration

Tailings thickening is an important process of paste filling technology. At present, a deep cone thickener is often used for tailings thickening. The sedimentation rate of tailings affects the solid flux of the deep cone thickener and determines the area occupied by the deep cone thickener. At present, the addition of flocculant to tailings has become a common practice to improve the efficiency of tailings thickening. Thus, the influence of various factors on the solid flux of the deep cone thickener needs to be investigated. In this study, the solid flux of the deep cone thickener was calculated through the static sedimentation experiment of the graduated cylinder, and the influence law of the flocculant unit consumption and slurry concentration on the solid flux of the deep cone thickener was analyzed, and the influence of the two factors on the solid flux of the deep cone thickener was determined. Results showed that the tailings exhibit a quadratic function relationship when the flocculant unit consumption is 5–30 g·t?1. At 6%–26% solid mass fraction of slurry, the solid flux first increases and then decreases, which is consistent with the experiment. The regression analysis of the solid flux equation under the coupling effect of flocculant unit consumption and slurry concentration shows that the contribution of the two factors to solid flux is slurry concentration > flocculant unit consumption. Based on the analysis of the influence of flocculant unit consumption and slurry concentration on solid flux, the reasons for the different contribution values of flocculant unit consumption and slurry concentration were summarized. According to the mathematical relationship between flocculant unit consumption, slurry concentration, and solid flux obtained from the research, engineering suggestions for the design and operation of the deep cone thickener were proposed. During the operation of the deep cone thickener, the slurry concentration should be guaranteed first, followed by the flocculant unit consumption.