A New Grinding Medium in the Application of Collophane Grinding

Yunnan Dianchi surrounding areas’ phosphate rock is rich in resources, but high grade phosphate rock is less and less. Currently used methods are mainly floatation concentrate, but most of phosphate rock are difficult to flotation of collophane with fine particle size distribution. It requires grinding to negative 90% fineness of 0.074mm content for flotation. The existing grinding system is difficult to maintain the stability of the grinding fineness and steel consumption is also large, so it can’t reach the design capacity of flotation plant. This article reference in other minerals as grinding medium steel forging successful application and to explore the application of the grinding system in the collophane from dianchi areas. The experiment of laboratory can stabilized the grinding fineness, reduced the excessive grinding and the consumption of steel, achieved good results.