This machine changed the structure of the original mill, making the body and chassis integrate, so it can be hung on the basis of one-time plane when installed. Main bearing adopts double-row radial spherical roller bearings, and it is used in conjunction with the improved and sand automatic lifting device of the classifier, so it can reduce the friction torque, reduce the energy consumption by 30%, Mill discharge end adds a cone cylinder body can make a reasonable distribution in cylinder medium, changing the original lattice-type forced discharging to control the discharge overflow type, and it can improve fine-grained grinding, and the treatment can be increased by 15% -20%. The cylinder body adopts ZGMN13 lining board, and we also can still set up a permanent magnetic material liner for users, increasing the service life of liner plate 5 times, which is for users to choose.