Raw material ores is exploited from mountain are big size,so it is necessary to crush firstly,in this process,the raw materials will be feed into primary crusher by feeder,then come into secondary crusher.The materials will go into screen after first and secondary crusher, the suitable size material (≤25mm) will go to next step. Oversize(>25mm) material will go back to secondary crusher to crush again. This forms a closed crush circuit.
In this process, material will be grinded into suitable sizes (about 200 mesh) for beneficiation.After grinding material will come to classifier. In classifier, suitable size material will go to next step. Coarse material will go back to ball mill for grind again. This process is a closed grind circuit.
In this process, materials will be separated by flotation, magnetic separator or gravity concentrating machine. We will get the materials that we need.