Iron Ore Dressing Ball Mill: 1.large applacation range, 2.simple structure, 3.easy maintenance, 4.large capacity. Ball Mill, Ore Dressing Grinding Mill ... , so the capacity is increased. Working principle of Ball Mill, Ore Dressing Grinding Mill When the Ball Mill works, motor and ... , so the barrel rotates. When the barrel rotates, Steel balls or other grinding media in the barrel are lifted to a ...