How to Reduce the Energy Consumption of Ball Mill from Daswell

Generally speaking, energy Consumption of the ore grinding occupies about 45% to 55% of the total and production cost of that amounts for 40% to 60% of the total.Therefore,it has great practical significance to probe into the ways to reduce the energy consumption of ore grinding. At this moment, the commonly adopted ways are the following:

1. Adopting grate ball mill instead of overflow ball mill.

Compared with overflow ball mill, the grate ball mill has low pulp surface on the throat to make the passing speed of ore pulp quick. In addition, the capacity of grate ball mill is 20%to 30% higher than overflow ball mill with the same specification and the former can save about 25% electricity.

2. Adopting antifriction bearing instead of sliding bearing.

The friction coefficient of antifriction bearing is lower, and the power dissipation ball mill needs to overcome the frictional resistance is lower than that of sliding bearing. In normal conditions, there is no need to replace the main bearing, the antifriction bearing can work for 10 years. It saves the maintenance cost and improves the running rate of the ball mill equipment.

3. Adopting pneumatical clutch instead of common clutch.

Pneumatical clutch can reduce the startup time of the motor so as to decrease the startup current's impact to the network and decrease the installation power.

4. Adopting rubber scaleboard

Rubber scaleboard is a kind of nonmetallic material with high property of wear-resistance. And practices prove that the unit energy consumption of wet ball mill can reduce to some degree after adopting the rubber scaleboard, it usually can reduce 10%. What's more, the service life of the rubber scaleboard is 2 or 3 times longer than the alloy scaleboard.The most remarkable thing is that besides reducing energy consumption, the rubber scaleboard can also reduce noise so as to improve the working environment.

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