Rod Mill

Power saving

Compared with the older equipment, the power saving is more than 40%. The particle size of the product is more uniform, and the coarse particles and slime are less. Compared with the particle size characteristics of the products of the rod mill and the ball mill, the product size characteristics of the open-circuit rod mill are almost the same as that of the closed-circuit ball mill.

Uniform discharge and high yield

The use of advanced controllable inlet and outlet rod mill technology, combined with the actual user's grinding materials with appropriate grinding body, a change of the traditional ball mill surface contact to line contact, so that Huali brand sand making machine discharge particle size is more uniform, higher yield, suitable for different hardness (Mohs hardness 5.5~12) of the ore.

Information

The rod mill is driven by the motor through the reducer and the surrounding big gear or by the low-speed synchronous motor directly through the surrounding big gear to drive the cylinder to turn. The cylinder is equipped with a suitable grinding medium - steel rod. Under the action of centrifugal force and friction force, the grinding medium is raised to a certain height and falls in a throwing or draining state. The ground material enters the cylinder continuously through the feed port, is crushed by the moving grinding medium, and drains the product out of the machine through the overflow and the continuous feed force to carry out the next process operation .

When the product particle size is required to be 80% less than 2.0% to 0.5mm, the rod mill is generally used, the product particle size of the rod mill is generally not more than 4.7mm, the minimum is not less than 0.4mm, the rod mill feed particle size is 80% less than 20mm to 4mm, and the maximum feed particle size can also be up to 50mm. Due to the material of the grinding rod and other reasons, the length of the grinding rod can not exceed 6.1 meters, otherwise it will cause bad results such as disorderly rod, so the specification of the rod solving machine has not exceeded the specification 4.6×6.3 meters.

When the ore is fed into the rod mill, the coarse particles are at the feed end and the fine particles are at the discharge end: therefore, the rod group cannot be completely parallel and tilted during operation, which is also a reason to limit the length of the grinding rod.

The crushing ratio of the rod mill is 15:1 to 20:1, the conventional grinding process of most foreign mills is composed of crusher, rod mill and ball mill, and the rod mill is not used in China's concentrator, and the ball mill's ore size is on the high side, resulting in energy consumption, grinding medium consumption and liner consumption. Rod mill Because the rod is in line contact, the large material is first ground, and has a selective grinding effect, so the product size range is narrow, the product size is uniform, the over-grinding phenomenon is less, and the grinding efficiency is higher.