Only in this way can we get good production indicators. Whether the ultrafine vertical mill can feed ore evenly depends on the operator's observation at all times. Generally, large fluctuations occur during shift handover. Therefore, some places must be carefully inspected.  The inspection items include: the main bearing and transmission bearing of the mill, the transmission system of the classifier and the operation of the feeder, whether the amount of lubricating oil is sufficient, understanding the supplement of grinding medium Whether the ore reserves, mill discharge, classifier overflow and sand return in the ore bin are normal.  Only by doing these carefully can we ensure the smooth operation of the ultrafine vertical mill and stable production indicators.