Abstract:In the construction of intelligent mine, the second-stage concentrator of Chengmen Copper Mine developed and put into use the SAB grinding intelligent system. In practical production, the SAB grinding intelligent system was continuously optimized, and the grinding process was stabilized by taking advantage of its high efficiency and coordination. On this basis, the analysis of the particle size composition of grinding products and the research of cyclone structure are carried out. By optimizing the cyclone structure, the particle size of grinding products is stabilized, the grinding and classification efficiency is improved, and better operation conditions are created for flotation process, which has reference value in the first-stage grinding and classification research and the application and popularization of cyclones.