Crushing is to make ore, raw materials and fuel crushing reach the required certain granularity, the principle is:
(1)Provide the proper feeding granularity for rod grinding, ball grinding and autogenous grinding or provide the qualified grinding medium for autogenous and pebble gringding.
(2)Coarse grain materials achieve primary monomer separation, so as to separate through way of coarse grain grading, for example, dense medium jigging,dry magnetic separation and washing etc .
(3)Provide proper person and raw materials,such as making the high quality iron ore reaches the required granularity to smelt directly. Different purpose needs different grain size, so therer are various kinds of crushing procedure.