鉴于生产中采用大型磨机具有生产效率高,生产功耗低,节省人力等优点,因此,在国内新建或扩建选厂的设计一般是优先考虑磨机大型化的方案。近几年来,我国一些选厂为了挖掘生产潜力,曾对原有磨机进行改造,并取得了成效。而这些改造方案,多般是倾向于磨机筒体的加长。但由于选厂受到磨机规格大小、投 In view of the production of large-scale mill with high production efficiency, low power consumption, saving manpower, etc. Therefore, the design of new or expanded plant in the country is generally given priority to large-scale mill program. In recent years, some of our selected factories in order to tap the potential of production, the original mill has been transformed, and achieved success. And these transformation programs, as much as tend to mill cylinder lengthening. However, due to mill size selection mill, cast