FRACTAL SURFACE OF ROCK OR ORE PARTICLES AND RELATED COMMINUTION ENERGY
矿岩粉碎颗粒分形结构与粉碎能耗的关系

Semi-automatic image analysis system is used for fractal dimension measurement of the outline of a rock or ore particle in comminution. The experimental data show that the fractal dimension of particle surface is in the range of 2.033--2.110, which is slightly higher with finer in particle size. Therefore, according to the theory that energy in comminution is proportional to the fractal surface area of particle, the formula which is same as Hukki's empirical equation is obtained and is stated as general form of three expressions based on the Kick's, Rittinger's and Bond's theory.