Mill workflow and precautions: 1, start grinding mill and its ancillary equipment start-up sequence is as follows: (1) mill main bearing and gear lubrication, high buoyancy systems and water cooling system; (2) cited fan, dust collector and out-feed conveyor equipment; (3) mill discharge device; (4) main motor; (5) feeding equipment; 2, during operation check run before and after the operation, should to be checked. (1) Check the mill lubrication, cooling is normal; (2) Check the mill operation is stable, the amplitude of the main bearings should not exceed 0.1mm; (3) main bearing temperature should not exceed 60 ℃; (4) the entire seal is good, should be seamless gray, oil spills, leaks; (5) Check all bolts, anchor bolts and cylinder liner bolts are loose, loss, broken; (6) motor and its control system should work properly , operation power supply and voltage should be within the specified range; (7) high buoyancy system is working properly, launch control is sensitive; (8) Check the signal devices are sensitive; (9) gear, the gear unit and the motor should be in accordance with their relevant documents and drawings to be checked. (10) operation to observe the hollow shaft, the oil ring is rotating with oil, the hollow shaft temperature is normal, if found hollow shaft fever, close to Burnt, should take immediate measures for forced cooling may not stop immediately, so as to avoid "hold Axis. " While paying attention to check the lubrication oil, temperature, time refueling. 3, the emergency stop grinding mill operation, the occurrence of one of the following exceptions, you should immediately contact with the job, according to a predetermined order parking, checking and troubleshooting. (1) Main bearing vibration exceeds a predetermined value; (2) main bearing temperature exceeds 60 ℃,; (3) due to the cooling water system and lubrication system failure Less oil temperature is too high; (4) the entire connection bolts loosening, fracture or fall off; (5) compartment plate due to blockage affecting production; (6) mill internal parts break and fall off; (7) reducer, motor abnormal vibration, noise, temperature when; (8) discharging a serious blockage of the screen cylinder material discharged together with the scum. 4, before and after the cessation of the mill started operating requirements (a) before starting a slow drive through the mill slow revolution (LP opened before lubricating device) and then press the start sequence is initiated; (2) mill stopped To prevent prolonged stop grinding cylinder deformation caused by the slow drive through the following intervals Mo rotating body, 10 min, 10 min, 20 min, 20 min, 30 min, 60 min, 60 min, 60 min. And during this time so as to avoid high pressure pump start shrink scratch pad, each mill is rotated through 180. . 5, the mill stopped long Precautions (1) winter long stop grinding, the mill body temperature to be completely the same as the ambient temperature drops, the cooling water and then stop, and use compressed air to blow water main bearing, put a clean memory ; (2) the grinding poured, to prevent deformation of the cylinder. 6, grinding grading loading by the engineering and technical personnel and craft depending on site conditions determine the actual grading scheme.