Application of wear-resistant ceramic lining in ball mill

Application of wear-resistant ceramic lining in ball mill

The use of wear-resistant ceramic lining in ball mill is a new requirement for many high-quality material grinding processes. Compared with ordinary ball mills, the characteristics of ball mills using wear-resistant ceramic lining are that the ball mill cylinder is equipped with impact-resistant and wear-resistant ceramic lining, which is used with ceramic balls. The grinding fineness is high and the metal impurities are few. It not only improves the service life of the equipment and the purity of the materials, but also expands the scope of application. From high-purity silica to alumina and zirconium oxide special ceramics, from medicine to glaze, it can provide grinding functions in various medium, fine and ultra-fine crushing operations.

The ceramic wear-resistant lining of the ball mill consists of three parts: the ball mill straight plate, the ceramic guard plate and the bolts. This design has a simple structure, is easy to install, and is convenient for later maintenance. The ball mill straight plate is a rectangular blunt plate, and the ceramic guard plate is a ceramic plate with the same shape as the ball mill straight plate. The upper and lower corresponding positions of the ball mill straight plate and the ceramic guard plate are respectively provided with screw holes. The ball mill straight plate and the ceramic guard plate are connected by bolts. The head of the bolt is located on one side of the ceramic guard plate, and the screw and nut matching ends of the bolt are located on the outer wall of the ball mill straight plate. This kind of ball mill wear-resistant ceramic liner is installed with the same ceramic guard plate on the inner wall of the ball mill straight plate, and the ceramic guard plate bolts are fixed on the ball mill straight plate.

The ball mill is generally a horizontal cylindrical rotating device, which consists of a feeding part, a discharging part, a rotating part, a transmission part (reducer, small transmission gear, motor, electronic control) and other main parts. The material is fed from the feeding device through the hollow shaft of the feed and evenly enters the mill's first bin. There are stepped lining plates or corrugated lining plates in the bin, and grinding balls of different specifications are installed inside. The centrifugal force generated by the rotation of the cylinder brings the grinding balls to a certain height and then falls, which has an impact and grinding effect on the material. After the material is roughly ground in the first bin, it enters the second bin through a single-layer partition board. The bin is inlaid with a flat lining board and contains ceramic grinding balls to further grind the material. The powder is discharged through the discharge plate to complete the grinding operation.

During the entire grinding process, the grinding balls will exert huge impact and friction on the lining plate in the bin. During the material breakage process, the sharp edges and irregular shapes will also cause serious wear on the lining plate. In this working environment, ordinary wear-resistant lining plates will soon be worn through, while the use of impact-resistant and wear-resistant ceramic lining plates can provide better protection, reduce equipment wear, thereby extending the service life of the mill, reducing production costs, and improving corporate benefits.