how to calculate energy efficiency grinding mill
Feed Mill EfficiencyEngormix. May 08 2012 · Roller mills are more energy efficient than hammer mills when grinding friable materials the advantage for corn is 5 at sizes smaller than 500 microns becomes 2530 at 800 microns and increases to perhaps >80 at a size of 3000 microns (CPM 1992).The hammer mill (Figure 4) remains the industry standard for size reduction.