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介绍了预粉磨工艺流程和主要粉磨设备在铁矿山的应用 ,并进行了比较 ,实践证明广义磨是一种可以在铁矿山中广泛推广应用的预粉磨设备
Introduced the pre-grinding process and the main grinding equipment in iron mines, and compared the practice has proved that broad grinding is a widely used in iron mines in the pre-grinding equipment