Introduction

The continued popularity of the kaolin market has also encouraged local enterprises to invest in Kaolin mining and processing industries in many areas with high-quality kaolin resources. At present, all applications of kaolin must be processed into fine powder by grinding machine before it can be fully integrated into other materials. At present, the conventional processing equipment of kaolin fine powder below 400 mesh is R-type Raymond mill, high-pressure medium-speed mill, overpressure V-type mill, etc. It can process kaolin raw ore into 80-400 mesh products of different specifications. The complete configuration of the kaolin mill includes jaw crusher, bucket elevator, vibrating feeder, main mill, classifier, powder collector, pulse dust removal system, air compressor, electrical control system and the corresponding supporting grinding equipment. Vanguard's Kaolin grinder has a unique crushing chamber structure and advanced classification device to ensure that the equipment to achieve ultra-fine powder processing. Especially for the products with high whiteness requirements such as kaolin, calcite and lime calcium powder, it is suitable to process, which has the characteristics of high whiteness, fine granularity and no black slag.
Kaolin has high whiteness, soft, easily dispersed in water suspension, good plasticity, high cohesion, excellent electrical insulation properties, good acid-solubility, low cation exchange capacity, good fire resistance and other physical and chemical properties. Therefore, kaolin has become a necessary mineral raw material for dozens of industries, such as paper making, ceramics, rubber, chemical industry, coating, medicine and national defense. It has also been reported that kaolin has been used in Japan to replace steel in the manufacture of cutting tools, lathe drills and internal combustion engine enclosures. Especially in recent years, with the rapid development of modern science and technology, the application of kaolin has become more extensive. Some high-tech fields begin to use kaolin as a new material. Even the high-temperature porcelain parts of nuclear reactors, space shuttles and spaceships are made of kaolin. Calcined kaolin for paper making is made from high quality Coal-series Kaolin by mineral processing, ultrafine grinding and calcination. It has a complete hexagonal sheet structure, good porosity, reasonable particle size distribution and excellent light scattering characteristics. At the same time, because of its high whiteness, low wear value and good oil absorption, it is an excellent coating pigment, which is mainly used for surface coating in the paper industry. It has the characteristics of reducing production cost, improving paper performance, increasing ink absorption, good compatibility with other components and high viscosity.