Retrofit of ball mill and the application of dynamic and static hydraulic bearing technic

The paper introduces the retrofit of mill,which is done without change of the places of motor,reducer and foundation.The output is increased by means of enlarged mill's chamber.Part of discharging end is made into cone type to ensure the retaining time of material in the mill.And dynamic and static hydraulic bearing technology is applied to avoid additional energy.The modified ball mill has been running for over half year,achieving satisfied results.