energy savings in vertical roller mills

Mar 10 2015 The energy savings of the vertical roller mill decrease for marble and hematite with increasing surface from about 62 at 2000 Blaine and 3400 Blaine respectively to 35 at 6000 Blaine For the siderite ore the energy savings show different behavior increasing from 48 at 3000 Blaine to 60 at 6000 Blaine Reasons for this may be found in the