在磨矿分级流程中,通过分级作业,将粒度组成较宽的物料,分成两个产物:细粒级产物叫溢流,粗粒级产物叫返砂或沉砂。在理想的条件下,大于分离粒度的粒子都进入粗粒级,小于分离粒度的粒子都进入细粒级。但实际生产中由于设备结构因素及操作条件等方面的原因,在两个产物中,往往有一定数量的混杂,即 Grinding classification process, through the grading operation, the particle size of the material composition is divided into two products: fine-grained product called overflow, coarse-grained product called sand or grit. Under ideal conditions, particles larger than the separation size enter the coarse fraction, and particles smaller than the separation size enter the fine fraction. However, the actual production due to equipment structure factors and operating conditions and other reasons, in the two products, there is often a certain amount of mixed, that is