The ceramic material is ground to a specified particle size in aindustrial Raymond mill apparatus as a result of the impact of the mill body on impact collision and grinding. However, the grinding process of the ceramic raw material in the barrel of the Raymond mill for limestone is very complicated.

If a single material particle is used as a research object, it may repeatedly receive the impact collision stress and the grinding extrusion stress during the grinding process of the Raymond mill. This causes the existing or newly formed cracks present on the surface of the material particles to expand, thereby forcing the material to plastically deform or break.

When the material particles are continuously ground and crushed by a industrial Raymond mill, it is difficult to further grind a certain level of new particles. The main reason is that the cracks on the surface of the newly formed material particles are fine, and the minimum crushing stress required for the expansion of this fine crack is sharply increased. Even if the final crushing stress required to grind the finely divided ceramic raw material in the ceramic Raymond mill may increase to force the particles to plastically deform, it is not enough to crush the material, that is, the material particles are no longer finely ground and have been ground too fine.