The rod mill and ball mill are commonly used grinding equipment, widely utilized in mining, metallurgy, building materials, chemical industry, and other industries. The rod mill is primarily used for rough grinding and initial fine grinding, typically employed to process low hardness ores. On the other hand, the ball mill is utilized for fine grinding and multi-stage grinding, making it suitable for handling ores and materials with higher hardness. As a result of the distinct process characteristics between the rod mill and the ball mill during the grinding process, there are also certain variations in their application scenarios.
★ Rod mill and ball mill process characteristics
◆ The rod mill uses steel rods as the grinding medium, and materials are ground through frictional forces generated by axial tension and extrusion. It features a simple structure and easy operation, with the ability to grade materials using different sieve plates. However, due to varying loads on the steel rods, ensuring consistent grinding quality and efficiency can be challenging. Uneven particle size distribution is also a common issue.
◆ The grinding medium of the ball mill is the steel ball. The multi-stage fine grinding, fine grinding and grading are carried out through the distributed grinding mode of axial rolling and oblique rolling. Compared with the rod mill, the quality of grinding medium in the ball mill is more uniform, resulting in higher grinding efficiency and a more uniform product particle size distribution. Additionally, Luoyang Dahua Ball mills can also be equipped with devices such as linings and partitions for efficient grinding and grading of different materials.
★ Luoyang Dahua rod mill
1. Special discharge structure and environmental protection measures to ensure uniform discharge, large discharge volume, and low pollution.
2. Large crushing ratio, good purification effect.
3. Rolling bearing support, energy saving 10~20%.
4. Special feeder machine, large feeding volume, equipped with slow driving device, dry oil injection device and other auxiliary machines, can also be configured according to user requirements, and can do non-standard design and manufacturing.
★ Luoyang Dahua ball mill
1. Well adapted to the materials, it has large production capacity with continuous production to meet the requirement of large-scale production.
2. Large crushing ratio with the biggest more than 300, it is easy to adjust fineness of grinding materials.
3. It is used in dry and wet crushing.
4. Simple and strong structure, reliable operation, easy to maintain and high running rate.
5. Good seal and negative operation.
