Ball Mills arc horizontal rotating cylindrical steel chamber of half filled with steel balls. The size reduction b accomplished by the impact of balls as they fall back after being lifted by the baffles fitted in the rotating chamber.

Ball Mill is fitted on a sturdy MS frame. Charging of balls and material is done by the means of opening provided in the chamber. The chamber is turning about the horizontal axis through a reduction gearbox and a motor. An arrangement is done for moving the Ball Mill at different speeds. A revolution counter is provided to find out the number of turns. Special arrangement is done to free the Ball Mill from reduction gearbox for charging and discharging the material.

Range of EXPERIMENTS

To study effect of rpm on the power consumption of a Ball Mill

To determine the efficiency of a Ball Mill for grinding a material of known W_i

To find the critical speed practically and theoretically and to study the effect of speed on efficiency

UTILITIES REQUIRED

Feed Product

1 kW, 1 supply

Set of sieves with sieve shaker for analysis.

TECHNICAL SPECIFICATIONS