Ball mill is a slightly inclined or horizontal rotating cylinder which is partially filled with balls, usually stone or metal, which grind material to the necessary fineness by friction and impact with the tumbling balls. Ball mills normally operate with an approximate ball charge of 30%. Ball mills are characterized by their smaller (comparatively) diameter and longer length, and often have a length 1.5 to 2.5 times the diameter. The feed is at one end of the cylinder and the discharge is at the other. Ball mills are commonly used in the grinding stages of mineral processing. Industrial ball mills can be as large as 8.5 m (28 ft) in diameter with a 22 MW motor, However, small versions of ball mills can be found in laboratories where they are used for grinding sample material for quality assurance.
Ball Mill is the cylindrical device used in grinding materials after the crushing process. It is widely used in the manufacturing industry, such as cement, silicate, new building material, refractory material, fertilizer, ferrous metal, nonferrous metal and glass ceramics and can be used for the dry and wet grinding for all kinds of ores and other grindable materials.
Features of Ball Mill
1. Using large diameter double row spherical roller bearings, instead of the original tile type sliding bearing alloy,thereby, it reduces friction, energy consumption and make it easy to starting mill.
2. It retains the old ball mill end cover structure form, and uses large diameter inlet and outlet, therefore it has large processing quantity.
3.Optional choice of the overall frame, the installation is accurate, easy installation.
4.Instead the joint feeder to drum feeder, features no inertial impact to keep stable operation, thus it reduces the downtime and maintenance time.
Technical Parameter of Ball Mill