| Message: | CITIC HIC ball mill components for body
In mine equipment, the ball mill is one of the necessary equipment, and the ball mill is one of the main working parts of the ball mill. Ball mill barrel in the work, in addition to receiving the static load of the grinding media, but also by the impact of grinding media, and the cylinder is a rotating, so the stress generated on the cylinder is changed. The metal material of the cylinder body is of high strength and good plasticity, and can be welded with common structural steel Q235, and the cylinder of the large mill is made of 16Mn steel.
Every bin on the cylinder should have a grinding door (also known as Kong Men). Grinding door is convenient for personnel to enter, inserts for lining board, partition board, filled or emptied grinding media, and stop grinding mill inspection operation. The position of each bin should be staggered on both sides of the cylinder, and the centrifugal force generated by the gravity of the grinding gate. In order to ensure the strength of the cylinder, the shape of the grinding door is generally round, oval or round shape, so as to avoid the crack caused by the stress concentration and cause the damage of the cylinder.
Mill operation and stopped for a long time when the length of the cylinder is not the same, this is due to the different barrel temperature caused by thermal expansion and contraction caused by. In order to ensure that the gear meshing normally, near the mill transmission device of unloading terminals are not allowed to have any axial movement, therefore, to be in the feed end set to adapt to the axial thermal deformation of the structure: A is reserved clearance between shaft neck of hollow shaft shoulder and bearing; another is the bearing seat and between the floor horizontal mounting a plurality of steel and, when heat expansion and cold contraction of a cylinder body, feed end of main bearing base along the roller moving. |
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