Application of Alumina Grinding Ball in Grinding Process of Kaolin

Kaolin is a silicate mineral.Due to its water-containing silicate chemical composition and layered structure,it has special properties that many of the minerals do not have.Kaolin is mainly used in papermaking,ceramics and refractory materials,followed by coatings,rubber fillers,enamel glazes and white cement raw materials,and a small amount is used in industrial sectors such as plastics,paints,pigments,grinding wheels,pencils,daily cosmetics chemicals,and building materials.

Ultra-fine crushing is one of the main processing procedures of calcined kaolin.The ultra-fine crushed calcined kaolin produced by the wet method can produce products with high added value and a broad market.In the wet ultrafine crushing process,the main equipment is an ultrafine stirring mill or a ball mill.When the grinding equipment is fixed,one of the main factors affecting the grinding effect of kaolin is the grinding medium.

The working principle of kaolin superfine grinding: the original kaolin enters the feeding bin through the grab machine,and after measurement,it is fed into the spiral feeding device by the conveyor belt and fed into the vertical ultrafine grinding.The center moves to the edge.After the process of compaction,degassing,and grinding,the material is taken up by the hot air entering from the wind ring at the edge of the grinding disc,and dried instantly,and the finer particles are taken to the separator for separation.

In the grinding process,the choice of grinding balls is very important.Alumina grinding balls have the characteristics of high strength,high hardness,high whiteness,and low abrasion.The specific gravity can greatly improve the grinding efficiency and thus increase the effectiveness of the ball mill The volume reaches the effect of increasing the amount of grinding material added.In addition,from the perspective of cost savings,the low wear of alumina grinding balls can greatly increase the service life of the grinding balls and reduce the number of purchases and costs.The Mohs hardness of kaolin is 6 and the Mohs hardness of alumina grinding balls is 9.High hardness and high whiteness can greatly improve the crushing efficiency and reduce the pollution of materials.