Ball mill feeder improvement. In the past, most of the ball mills used the scoop head feeder to feed. Due to the rough and self-weight and eccentricity of the scoop head, and the friction and impact of the sand and sand during the sand excavation, the ball mill produces periodic eccentric load. And the impact load, the motor runs under variable load conditions, not only the capacity increases but also the current fluctuation is large, showing a half-cycle acceleration, half-cycle deceleration shifting motion.
This periodic eccentric load and impact load have a great influence on the wear of the main bearing, the force of the barrel coupling bolt, the meshing of the large and small gears, and the heating of the motor, shortening the service life.
The above drawbacks can be avoided by using the drum feeder, but the sand returning system of the classifier needs to be modified, the classifier tank is lengthened, the installation angle is adjusted, the distance between the ball mill and the classifier is changed, and the automatic is added to the upper end of the classifier. The sand returning mechanism discharges the mineral from the upper part of the classifier, and uses the return sand flow trough to enter the feeder together with the original ore flow trough by the high difference self-flow, and the modified ball mill not only improves the reliability and maintainability of the equipment. And there are significant energy savings.
This periodic eccentric load and impact load have a great influence on the wear of the main bearing, the force of the barrel coupling bolt, the meshing of the large and small gears, and the heating of the motor, shortening the service life.
The above drawbacks can be avoided by using the drum feeder, but the sand returning system of the classifier needs to be modified, the classifier tank is lengthened, the installation angle is adjusted, the distance between the ball mill and the classifier is changed, and the automatic is added to the upper end of the classifier. The sand returning mechanism discharges the mineral from the upper part of the classifier, and uses the return sand flow trough to enter the feeder together with the original ore flow trough by the high difference self-flow, and the modified ball mill not only improves the reliability and maintainability of the equipment. And there are significant energy savings.
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