If the open mill equipment installation, electrical protective measures are not taken, prone to electrical short circuit, UOB mechanical implementation of the control system installation program, and after repeated tuning PID parameters, and put into operation the day after satisfactory results mill price from stable the amount of material occurs silo normal start, but the frequency modulation does not go up, ball mill drive to start, but the frequency of 20Hz when transferred from the stop trip, fault records show that "motor short circuit" mill, with the shake table to measure the motor insulation is low, only After 0.5MQ, take welding processing power on 24 hours, insulation up to 10M (qualified), power-on test, the frequency of 30Hz transferred from the stop trip took place, still shows "motor short circuit", open phase motor star point resistance measurements and found that U phase and W-phase phase short circuit occurs, replace the motor fault elimination. Failure Analysis: mill outdoor installation, improper scene rain measures before starting the rainfall, causing the motor damp, not dry motors that turn cause localized phase short circuit, our approach to occur: increased motor rain measures ceramic ball, rigorous testing before starting the motor insulation. Mill equipment is one of the main products Dahua Machinery Co., cement mill, Dahua Machinery is one of the country's largest manufacturer and supplier of ball mill, located in the Central Plains, and convenient transportation, production quality assurance, and excellent after-sales service, On the ball market has a good reputation. Dahua machinery for your mill focuses on the process of starting, due to the dynamic load caused by the transmission gap. Mill equipment start-up power mode, currently still used around the ball most of the transmission mode and the central transmission, directly driven by small and medium sized ball wound motor or squirrel cage motor, and large ball mill is used to implement segmentation starter clutch device, when the ball mill at different When the dynamic processes in nature, should create a different dynamic model for mill start-up process, you can set up two quality single degree of freedom elastic system dynamics model. When the mill equipment direct start, the moment of inertia of the rotor mill (including the work of the media and load) and coaxial with the motor drive system was transformed into an equivalent moment of inertia, starting torque motor output is seen as the starting transient increased to a constant value When the ball through the clutch segment starts, the moment of inertia of the driven clutch parts, clutch friction torque is passed, is a function of time for different clutch operating system, growth law is different and the same with the direct start from. Stirred ball mill, ball mill in Qitaihe City, Dahua machinery provided by Gongyi City Dahua Machinery Limited. Gongyi City Dahua Machinery Co., Ltd. (www.dhqmj.com/) strong, credible, in Zhengzhou, Henan's industry-specific equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Dahua machinery and you hand into the brilliant, for a better future!