A ball mill is widely used in cement, silicate, new construction material, refractory material, chemical fertilizer, ferrous metal and non-ferrous metal as well as ceramics. It is widely applied to dry or wet grinding for ores and grindable materials. Ball mill is the key milling equipment after material has been crushed.
Ball Mills are a horizontal cylindrical rotation device, driven by a brim gearwheel; there are two chambers and a grid. Material goes into the first chamber through the feeding inlet, inside the first chamber, there are stage liners and ripple liners as well as steel balls with various kinds. The shell rotates which generates eccentricity, this force brings ball to a certain height and then balls drop down by gravity, the impact is the grinding force to the material. After the primary grinding in the first chamber, material goes into the second chamber through segregate screen, in the second chamber, there are flat liners and steel section, after the secondary grinding, material is discharged through the discharging screen. It is formed by a feeding part, discharging part, rotation part and driving part (gear box, small transmission gearwheel, motor and electric control). The central hollow shaft is cast steel, the inner line can be changed, the rotation big gearwheel is made by cast hobbling processing, and there are wearable liners with favorable anti-wear ability. A main advantage of this piece of equipment being the reliability and stability of it.
Note: According to the discharging method and material type, both dry type ball mills and wet type ball mills are available.