从目前国内铁矿基本情况和预磨技术在铁矿山应用中的碎磨要求出发,对常用的新型颚式破碎机、新型圆锥破碎机、高压辊压机和新型立式辊磨等预磨设备进行了综合比较,对主要预磨设备的介质磨耗也进行了对比分析。而后,重点介绍了广义立式磨作为一种新型节能技术设备在矿山预粉磨中的应用,并指出它是目前技术水平和工艺条件下较为理想的预磨设备。 Starting from the current basic situation of iron ore in China and the requirement of grinding in the application of iron mines in the pre-grinding technology, the pre-grinding of new commonly used jaw crusher, new cone crusher, high pressure roller press and new vertical roller mill Equipment for a comprehensive comparison of the main pre-grinding equipment, media wear also conducted a comparative analysis. Then, it mainly introduces the application of generalized vertical mill as a new type of energy-saving technology in the pre-grinding of mines, and points out that it is the ideal pre-grinding equipment under the current technical level and process conditions.