Ball mill is the key equipment for grinding after the crushing process, which is widely used in the manufacture industries, such as cement, silicate, new building material, refractory material, fertilizer, ferrous metal, nonferrous metal and glass ceramics and can be used for the dry and wet grinding for all kinds of ores and other grind-able materials. 1) between balance wheel and middle wheel of ball mill gear box, mesh, Tooth elevation do not install according to the regulation, this will cause the ball mill high speed shaft pinion drives one side intermediate shaft big gear wheel, while ball mill intermediate shaft pinion drives balance wheel, ball mill balance wheel drives the other side intermediate shaft that makes ball mill gear box cannot form two sides load sharing rotation, occur beat voice, it is dangerous. 2) ball mill should not work under the situation of overload and underfeeding. 3) ball mill should rotate according to the specified direction ,otherwise it will not discharge or damage the machine. The stages of load test run are:
(1) Add certain materials and 1/3 quantity of steel mill (max. ball load refers to ball mill instruction) test for 12~~24hours. (2) Add 2/3 quantity of steel ball run for 24~48 hours
(3) According to the discharge situation of ball mill, the output of accepted products refers to the actual ball load of the same kind beneficiation plan t to makes sure the reasonable ball load of this ball mill, then test for at least 72hours. 4) in the above process, the time of test run and increase of the load capacity should according to the big wheel gear and pinion and the running-in situation (tooth surface, temperature rise, noise, contact)of gear box. Full load test run will be process till gear surface contact precision reaches the designed requirement. 5) during test run, cooling and lubricating system of ball mill should work smooth; main bearing, transmission bearing, gear box temperature should be normal. 6) after the test...
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