Ф 2.2 X7.5 meters of second-hand ball mill 
Ball mill - troubleshooting 
1, the ball mill operation, there are rules of knocking sound, and sound is very big. Is part of the plate bolts not tight in the ball mill rotates, lining board hit ball mill grinding cylinder. Based on sound judgment ball mill lining board site, find out the loose bolts, fastening separately. 
2, ball mill and motor bearing temperature rise, in excess of the prescribed. With the hand touch bearing is partial or total temperature is too high, from the following several check processing mill. 
Lubrication points, lubricating oil brand and equipment used in the shop instructions. 
Metamorphism. 
Congestion, or not directly into the lubricating points of lubricating oil, oil shortage caused by fever. 
Gap of 1/3 ~ 1/2 more appropriate. 
The above problems, according to its reasons, only the side clearance of the bearing shell is too small, or at the bottom of the contact Angle is too big, must use grinding cylinder hydraulic one thousand jins bumps, take out from one side of shaft bearing, blow grind tile edging separately. 
3, ball mill reducer bearing heating: 
Besides according to ball mill bearing temperature check, should check whether reducer of the vent plug, to unclog the vent. 
4, ball mill motor reducer after start-up, vibration, the main reason is: 
Bearing outer ring. 
Processing method: according to the rules of good to wheel clearance adjustment, make the two axis concentric. Tighten the connecting bolt coupling at the same moment of symmetry. 
Extract ball rotor rotor imbalance, separately for static balance. 
5, ball mill reducer drive a great vibration of the grinding machine: 
Mill lining board installation, no secondary grouting, or after the second grouting anchor bolt fastening is good, no use hoist rotating grinding cylinder, the displacement of end mill cylinder body, and two axis is not always online, after making the reducer drives the mill and vibration generation. 
Methods: to readjust, the ball mill grinding machine axis and axis of reducer in the same plane axis line. 
Large ball mill large volume, heavy weight, make the foundation sink; On them. Beside the foundation settlement monitoring points; Observations, found that sank, adjust. 
6, ball mill reducer running abnormal voice: 
For normal operation of the ball mill reducer voice, should be evenly smooth. Friction gear such as a slight tapping, hoarse voice, no significant changes in operation, can continue to observe and find out the reason, parking ball mill processing, such as voice is more and more big, should immediately stop the ball mill for inspection. 
It is important to note that the balance of the ball mill reducer wheel not according to stipulations of meshing teeth with middle wheel elevation installation, can cause the intermediate shaft on one side of the ball mill of high-speed shaft pinion driven wheel, ball mill and intermediate shaft pinion drive the balance wheel, ball mill balance wheel is turned to drive on the other side of the intermediate shaft, the ball mill reducer without the formation of both rotation, some sound, this is dangerous. 
The ball mill product parameters 

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