Although many studies have been conducted to date to investigate the effects of grinding aids (GAs), none of them specifically examined the effect of GAs on transportation rate of material inside the ball mill. In this study, the effects of GA on transportation rate of the ground material inside the cement ball mill and the effects of this change on the whole grinding circuit were investigated. In this context, industrial tests were carried out with three different dosages of an amine-based commercial GA in a closed-circuit cement ball mill. During the tests, the throughput of the circuit and all operating parameters of the mill and air classifier were kept constant. Thus, in dependent of all other variables, the effects of GA on the overall circuit, ball mill and air classifier were able to be examined. When GA was added to the circuit, the residence time of the material inside the mill decreased and the mill product became coarser. In fact, though the coarser ground powder was fed to the classifier, the cut size of the classifier decreased and, as a result, final product became finer with increasing the GA dosage. The results of this study based on industrial data will provide a better understanding of the mechanism of action of GAs in grinding circuits and pave the way for more efficiently use of GAs in industrial applications.

尽管迄今为止已经进行了许多研究来研究助磨剂（GAs）的影响，但没有一个研究专门检查了GAs对球磨机内部物料输送速率的影响。在这项研究中，研究了GA对水泥球磨机内部磨料运输速度的影响以及这种变化对整个研磨回路的影响。在这种情况下，在闭路水泥球磨机中使用三种不同剂量的胺类商品化GA进行了工业测试。在测试期间，回路的通过量以及磨机和空气分级机的所有运行参数均保持恒定。因此，依赖于所有其他变量，可以检查GA对整个回路，球磨机和空气分级机的影响。将GA添加到电路后，物料在磨粉机中的停留时间减少，并且磨粉产品变得更粗糙。实际上，尽管将较粗的磨粉送入分级机，分级机的切块尺寸却减小了，结果，随着GA用量的增加，最终产品变得更细。基于工业数据的这项研究结果将提供对GA在研磨回路中作用机理的更好理解，并为在工业应用中更有效地使用GA铺平道路。