The Effect of Size and Shape on Breakage Characteristic of Mineral

Modelling used to describe the size reduction processes have undergoes significant advances in recent year. Industry demands for more detailed information regarding breakage particle for comminution process. However, comminution process is governed by a large number of factors that influence the breakage of particle. These papers present how to evaluate the effect of size and shape in single particle breakage of pegmatite. In this project, drop weight test was conducted to stimulate the single particle in comminution machine. The shapes of particle used are flaky and equidimensional shape. In drop weight test, the breakage characteristics of different size fractions can be examined at various input energy, E is expressed in kWh/t. Relation between specific comminution energy level and the breakage index number (t 10 ) was established on the size fractional based so that the variation in impact breakage characteristics of different particle shapes can be observed. From the result obtained, it has shown that the size and shape of particle do have influence on the breakage function.