How to deal with the malfunction of ball mill better

Common equipment failure (and prevention, treatment)

 

1, when the mill is working, there are rules and beat the sound, the sound is great. Some liner bolts not tightened, the ball mill lining plate rotates, percussion mill cylinder. According to the sound judgment plate ball mill lining, find loose bolts, fastening separately.

 

2, the ball mill and motor bearing temperature rise, more than the provisions. Hand try to touch the bearings, is partial or all the temperature is too high, from the following inspection processing ball mill

 

-Check the lubrication points of each part of the ball mill, whether the lubricating oil grade is consistent with the equipment instruction

 

-Check whether the lubricating oil and grease in the ball mill have gone bad

 

-Check whether the lubrication line of ball mill is blocked or that the lubricating oil does not go directly into the lubrication point, and the oil is insufficient to cause heat

 

-The side clearance of the ball bearing bush is too small, the gap between the Bush and the shaft is too large, the contact point is too much, and the uniform oil film on the bush can not be formed

 

-Rolling mill bearing grease too much or too little, too much grease form rolling stirring to produce heat, and to heat. Too bad lubrication, should add enough oil amount in accordance with the regulations, usually bearing clearance 1/3 ~ 1/2 is appropriate.

 

-Tight sealing device of hollow shaft mill both ends of the body, or is a sealed body iron in direct contact with the shaft.

 

The above problems are dealt with according to their causes, but the side gap of the bearing bush is too small or the contact angle at the bottom is too large. The cylinder can be jacked up with an oil pressure jack, and the Bush will be pulled out from the side of the shaft, and then scraped into the tile mouth

 

3,Ball mill reducer bearing heat: in addition to the ball mill bearing temperature check, should check the reducer exhaust hole is blocked, to clear the exhaust hole

 

4,The vibration of the ball mill motor with speed reducer is the main cause of vibration:

 

-The two wheel clearance of the coupling of the ball mill is too small to compensate for the movement of the motor caused by the self engaging magnetic center at the start of the motor

 

-The aligning method of the ball mill coupling is wrong, causing the two shafts to be out of joint

 

-The connecting bolts of the ball mill coupling are not screwed relative to each other, and the degree of fastening force is different

 

-The outer ring of bearing ball mill. Methods: processing activities in accordance with the provisions of the gap on the wheel, the two axes concentric to the bolt. The same torque fastening coupling. Symmetric rotor imbalance, will find out the rotor static balance ball mill separately.

 

5,When the ball mill reducer drives the mill, great vibration occurs:

 

-The balance shaft of the ball mill and the reducer is not in a straight line, and the reason is that the shaft is not in a straight line:

 

Install the mill liner, not two or two times after grouting, grouting of the anchor bolt is not fastened, grinding cylinder rotation winch, the grinding end of the cylinder displacement, while the two axis is not in a straight line, the speed reducer drives the vibration mill. Method: to re adjust. The ball mill mill reducer axis and the axis in the same plane axis.

 

-Large ball mill is big in size and heavy in weight. It makes the foundation sink and displacement. Monitoring points are set up beside the foundation. Observation is made and adjustment is found when sinking

 

6,The ball mill reducer abnormal sound. The normal operation of the ball mill reducer should be sound, smooth and uniform. Such as gear minor percussion sound, rubbing the hoarse voice of the no change in operation, can continue to observe, identify the reasons for the mill parking for processing, such as voice more and more, should be immediately stopping mill check. It is worth noting that the ball mill reducer balance wheel and a middle wheel gear not according to the specified installation elevation, will cause a large shaft gear pinion drive side of high speed ball mill, ball mill and pinion drive shaft balance wheel balance wheel, ball mill and in turn drive the other side The intermediate shaft causes the ball mill speed reducer not to form both sides to carry the rotation, produces the RBI sound, this is very dangerous

                         [Click on the ball mill liner introduction](/categories/ball-rod-mill-liner/)



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