The cause of the "blowing" is mainly due to the increase in the amount of minerals and the change in the amount of water (water pressure) caused by the sharp increase in grinding concentration. The sound becomes dull, I can't hear the impact of the steel ball. Observing the ammeter can see the current drop, which means that the motor has the least work at this time, and the mill has lost the grinding effect. If not promptly adjust, and soon the cylinder body material will cause the loss of metal from the mine to the mill spit out (commonly known as lean pull). Deal with the phenomenon of "swelling belly", the operator should not panic. It is necessary to first turn off the feeding machine, stop the feeding, and increase the amount of water in the rear of the mill. The discharge of the ore is appropriately reduced to increase the overflow concentration of the classifier. The purpose is to reduce the amount of returning and reduce the load on the mill. After careful treatment and adjustment, it usually takes about half an hour to return to normal, and some serious ones are still longer. When it is found that the discharge concentration of the discharge port is thinner and the discharge amount is gradually reduced, the sound of the steel ball striking the lining can be heard; the current meter can be found to return to normal, and these phenomena all indicate that the "flatness" has been solved. At this point, the mine and other operating conditions should be restored to allow the mill to work properly.
Self-aligning Ball Bearings have two rows of balls, a common sphered raceway in the outer ring and two deep uninterrupted raceway grooves in the inner ring. They are available open or sealed.
The bearings are insensitive to angular misalignment of the shaft relative to the housing , which can be caused, for example, by shaft deflection.
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Accommodate static and dynamic misalignment
The bearings are self-aligning like Spherical Roller Bearings or CARB bearings.
Excellent high-speed performance
Self-Aligning Ball Bearings generate less friction than any other type of rolling bearing, which enables them to run cooler even at high speeds.
Minimum maintenance
Due to low heat generation the bearing temperature is lower, leading to extended bearing life and maintenance intervals.
Low friction
Very loose conformity between balls and outer ring keeps friction and frictional heat at low levels.
Excellent light load performance
Self-aligning Ball Bearings have low minimum load requirements.
Low noise
Self-aligning ball bearings can reduce noise and vibrations levels, for example, in fans.
What is the cause of the swelling of the mill? What is the performance? How to deal with it?
The concentration of grinding concentration is directly related to the amount of ore. If the concentration is too large or too small, it will have an adverse effect. When the concentration is too large, the slurry flow rate is slowed down, and the impact of the grinding medium (steel ball, steel rod) becomes weak. For overflow ball mills , the concentration of the ore may be thicker; while the lattice ball mill may show swelling.