MB rod mill

MB rod mill is widely applied to grind various ores, rocks and artificial sand in metal and non-metal mining, water resources, glass construction industries that require even granularity of products and less powder sand. Highly-efficient and energy-saving rod mill replaces engine sliding bearings support with rolling bearings support. Compared with the sliding bearing support, it can save energy about 10-20% and improves the productivity about 10-20% under the same power.

Rod mill drives the shell to revolve by the reducer and the gear reducer transmission or drives down directly by the gear driven by the low speed synchronous motor. There is proper ore grinding medium-steel stick inside the shell. Under the action of centrifugal force and the friction, the medium is lifted to a certain height and fall down freely. Materials continuously enter into the shell from the feeding inlet and are crushed by moving medium. Then, they will be discharged out of the machine by the force of overflow and continuous feeding. The rod mill features even granularity, large particles and less slime. Compared to the ball mill, the size distribution curve of open-circuit rod mill is the same as that of the close-circuit rod mill. The granularity character of products has relation to the crushed ores. The rod first hit the coarse particles and then smaller ones which reduces the risk of over-crushing. When the rod goes upward spirally along the liner mixed with coarse particles, just like the grizzly screen, fine particles will pass through the gap between rods which is beneficial to crush coarse particles and make them gathered in the beat area of the medium. Therefore, the products are comparatively even with less over-crushing.