How to control grinding fineness effectively is an important factor to reduce cost and improve economic benefit. First of all, we should fully understand the influencing factors of grinding fineness.

1. Ore hardness

2. Crushing particle size and mesh size

3. Ball mill model, speed, feed rate, ball number, ball size

4. Main shaft lifting height of classifier

5. Blade wear

6. Overflow weir height of classifier

7. The lower opening height of the classifier, the lower opening size of the classifier, the upper opening height of the classifier, and the upper opening size of the classifier

8. Flow size at sand return

9. Feed water size of ball mill

10. Size of flushing water at discharge port of ball mill