When the temperature of the roller rises abnormally, immediately stop production and conduct an investigation. From the sealed fan, step by step inspection is carried out in the direction of the wind, so as to plug the loopholes, seal and unblock them in time.

Due to the harsh working environment of ultrafine vertical mill, which is accompanied by a large amount of powder for a long time, the filter screen of the fan is easy to be blocked, so the technicians should clean it frequently and try to do it once every half a month.

And because the temperature of the working environment is high, the air duct is prone to softening and deformation or air leakage. It should also be checked every half a month to kill the fault in the cradle.