When it comes to mill liners, they are critical production equipment that you need for carrying out various tasks. The continuous grinding helps crush the ore to access the valuable metals underneath. Anyone involved in the extraction of valuable metals requires a mill liner. Hence, there is a select the right mill lining system. The good news is that this post looks at the main factors that should be considered to make the right choice.
What Is A Mill Lining System?
A mill lining system is a system that helps protect the mill shell from erosion that is caused by the abrasion and impact of the mill charge. It ensures that the mill contents tumble according to the required manner. Make sure to find a mill lining system wherein the mill liner profile has been constructed using high wear resistant materials.
- Design Configuration
One of the most important factors that need to be considered when choosing a mill lining system is its design configuration. Since there is ongoing optimization of the system, you need to make sure that you understand which design configuration to opt for as it influences the effectiveness of the grinding process. There are different types of mill designs. They include scrubber, rod, ball, and semi-autogenous, and auto mills. The most common varieties include ball and semi-autogenous mills.
- Grinding Action
You need to monitor the grinding action of the mill lining system when selecting a China mill liners manufacturer. You should also consider the grinding media characteristics as well as the mill size. By focusing on these points, you will have no trouble selecting the right liner geometry and material. The lining system can be made from composite material or rubber depending on the material and mill size. Abrasion resistant hardened plates may be required where high energy is involved.
- Intended Application
There is a reason why a mill lining system is needed. It is used for various purposes. This is why you need to determine the intended application to make the right choice. Keep in mind that SAG and ball mills use grind material through various actions. They are normally applied in different stages. As for SAG mills, they tend to have a much larger diameter than their length. They help reduce the large feed size of the ore.
Further grinding is only carried out later. On the other hand, ball mills are much smaller in terms of their diameter but have a longer length. They are used for tertiary, secondary, and primary applications wherein the material is reduced from 200mm to form very fine product sizes that are later measures in mesh or microns.
Composite and Rubber Mill Lining Systems
Back in the day, grinding mills used to be lined with cast metal linings. Thus, lining system selection was only influenced by cost and the level of wear protection. Over the years, design techniques and materials used have progressed. This has resulted in superior alternatives emerging.