The gold ore grinding ball mill is the most widely used equipment in industyr grinding, the grid type ball mill and overflow ball millis used in the mineral processing industry and other industrial sectors .Dry type grid type ball mill is mainly used for industrial milling, mainly used for grinding materials industries. Application of Dual Shaft Mixer Machine Double shaft mixer is mainly used to mix the shale, coal gangue, and slag etc throughly by its two screw blade shafts. The main wearing parts is alloy wear-resistant material, and the mixing shaft has been heat treated, making the machine have a long service life and reducing its cost.