所有用来加速赤泥悬浮固体颗粒沉降的聚合物絮凝剂,都会使赤泥底流场应力增加,从而使其流动性变差。在某一固体颗粒浓度下,场应力会随聚合物添加剂量的增加而增加,但是这也取决于所采用的聚合物种类。对比不同相对分子质量絮凝剂在赤泥中的作用效果,得出结论,当聚合物絮凝剂相对分子质量大于某一最小值时,赤泥的流变学性质不再随相对分子质量增加而发生变化。因此,对于可能产生的最低场应力,絮凝剂相对分子质量越大越好,这样就可以实现在要求的沉降速率范围内使用最低剂量絮凝剂的生产目标。 All polymer flocculants used to accelerate the sedimentation of red mud suspended solids will increase the stress on the red mud bottom flow field and cause poor fluidity. At a given solids concentration, the field stress will increase as the amount of polymer additive increases, but this also depends on the type of polymer employed. By comparing the effect of different molecular weight flocculants in red mud, it is concluded that when the relative molecular mass of the polymer flocculant is greater than a certain minimum, the rheological properties of the red mud no longer occur as the relative molecular mass increases Variety. Therefore, for the lowest possible field stress, the larger the relative molecular mass of the flocculant, the better the production target of using the lowest dose of flocculant within the required settling rate.