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I. Basic principle of ball mill work
The ball mill is mainly composed of a cylindrical cylindrical body, an end cap, a bearing, and a generic gear.
Cylinder: a steel ball or steel rod having a diameter of 25 mm to 150 mm, referred to as a grinding medium, with an amount of 25% - 50% of the entire cylinder.
End cover: There is an end cap at both ends of the cylinder, and the screw is connected to the end of the cylinder, and the middle portion of the end cap is a hollow journal.
Bearing: The hollow axial diameter is supported on the bearing, and the cylinder can be rotated.
Large tooth ring: fixed on the cylinder.
II. Introduction to the mill
The milling operation is carried out in the ball mill, and the body of the barrel is brought to a certain height with the rotation of the cylinder, the medium is falling, loading The ore in the cylinder is subject to a violent impact of the medium; on the other hand, since the rotation of the mood in the barrel is in the cylindrical axis, between the grinding medium and its extrusion of the ore in contact with the cylindrical contact area. And grinding, thus grinding ore.
Ball mill steel ball (grinding medium) is taken up and rose to a certain height when the cartridge is rotated, and due to the gravity of the steel ball itself, the last track is falling along a certain track. The steel ball in the region is affected by two power: one is rotated to apply to the steel ball in the tangent direction; one is opposite to the steel ball diameter and the force opposite to the above force, this force The generation is caused by the sliding movement of the steel ball itself. The above two types have constituted a pair of power for steel balls, since the steel ball is extruded in the middle of the barrel and adjacent steel balls, the force can make the steel ball to have a size unequal friction, steel When the ball is rotated with the cylinder shaft, the ball is falling in the region, which has a powerful impact in the region in the region, and the ore is broken. It can be said that ore in the mill is mainly ground by the effect of the earth, impact force, and extrusion.
Third, the spherical mill
overflow ball mill: With the rotation of the cylinder and the mushrooms, the materials such as the mine are gradually diffused to the right, and finally from the right hollow axis Out, there is a name.
Plaid Mill: Such machines have a plaid on the discharge side, consisting of several pieces of sector-shaped orifice plates, and the holes have a width of 7mm-20mm, the ore enters the plaid and end caps through the holes. In the space, the material is then lifted upwards, and the material delays the pull-down, and then the tapered block is retracted to the upper right to the hollow neck discharge machine.
Wind Dissu Ball Mill: The material is from the feed mouth into the ball mill. After the grinding of the material, the material is gradually movable from the grinding of the grinding, and the outlet end is connected to the duct in the system. The import of the selection machine, dust collector, and fan, when the wind discharge starts, the ball mill body is relatively low and negative pressure, and the abrasive material after breaking the pipeline, from the wind. When the powder powder will be separated from the coarse particles and re-feed into the ball mill import, the grinded material is from the separator.Separate recovery.
