The working principle of ball mill is that the motor drives the cylinder to rotate through the deceleration device. When the cylinder is rotated, the crushed ore and steel balls are brought to a certain height by the friction force and centrifugal force of the lining plate.

As a result of gravity, the ore will be thrown down and dropped, and the ore will be gradually crushed under the impact and grinding action. The crushed ore is discharged out of the barrel through the discharging part. After the discharged minerals are classified into qualified products in the screw classifier, the coarse sand is returned to the ball mill through the combined feeder to continue grinding.

The feeder feeds continuously and evenly, the ore enters the ball mill continuously and evenly through the combined feeder, and the grinded materials are discharged continuously from the ball mill. Ball mill is a continuous grinding equipment which can work 24 hours a day.