In order to prevent clogging, facilities for preventing coarse materials and debris (such as chip removal screens) can be installed in the feed tank of the LUM ultrafine vertical mill group.

At the same time, the feed tank should be emptied in time when the machine is stopped, so as not to cause problems when driving again. Because of precipitation and high concentration, it can cause clogging.

Underflow concentration and discharge abnormality During the operation process, the operator of the LUM ultrafine vertical mill needs to observe the underflow discharge state of the cyclone frequently, and regularly check the underflow concentration and fineness.

If the underflow concentration fluctuates or "underflow is trapped" All should be adjusted in time. Under normal working conditions, the underflow discharge of the LUM ultrafine vertical mill should be "umbrella".

If the concentration of the underflow is too large, the underflow will be discharged in a "columnar" or intermittently "lumpy" shape.