limestone has high whiteness, soft texture, easy dispersion and suspension in water, good plasticity, high cohesiveness, and excellent electrical insulation performance; It has good acid resistance, low cation exchange capacity, good fire resistance and other physical and chemical properties.

Therefore, ultrafine vertical mill for limestone processing has become a necessary mineral raw material for dozens of industries such as papermaking, ceramics, rubber, chemical industry, coating, medicine and national defense. It is reported that Japan also uses limestone to replace steel to make cutting tools, lathe bits and internal combustion engine casings.

Especially in recent years, with the rapid development of modern science and technology, the application of limestone has become more extensive. Some high-tech fields have begun to use limestone in large quantities as new materials, and even the high-temperature porcelain parts of atomic reactors, space shuttles and spaceships are also made of limestone. Calcined limestone for paper making is made from high-quality coal series limestone through beneficiation, superfine grinding and calcination.

It has relatively complete hexagonal sheet structure, good porosity, reasonable particle size distribution range and excellent light scattering. At the same time, because of its high whiteness, low wear value and good oil absorption, it is an excellent paint pigment, which is mainly used for surface coating in the paper industry. It has the characteristics of reducing production cost, improving paper performance, improving ink absorption, good compatibility with other components and high viscosity.