The determination of alloy and optimum design for cement mill liners is crucial to give best mill protection. For quarrying industries and mineral processing, mill liners with good material which require less maintenance are indispensable in order to increase the efficiency and performance of the mills. Less maintenance costs along with long lifetime of mill machines, in addition to low expenses, can bring maximum profits to your company.
In this article, you will learn about cement mill liners. Liners are used to protect mill machine from damage. Due to constant process of grinding and crushing the material, the liners are impacted. In addition to it, liners are also impacted by corrosion of pulp. Because of these factors, liners will continue to be worn out and eventually damaged. At this point, a replacement of liner is necessary to protect the mill and prolong its service life.
Design of Cement Mill Liners
The design of cement mill liners depend on various factors which include material ground, maximum ball diameter, rotation speed, mill drilling, shell liner type and grinding media filling degree etc.
Types of Cement Mill Liners
Following are the types of cement mill liners.
1. Lifting Liners
Lifting liners not only cut the wear of grinding balls and but also prolong the life of mills. In addition to it, lifting liners have low maintenance costs and requirements. They have great grinding efficiency along with reduced power consumption. Furthermore, because of continuous lifting action, lifting liners have reduced wear rates. You can use lifting liners for solid fuel mills, cement and raw tube mills.
2. Feed End Liners
Feed end liners are another type of cement mill liners. They consist of manganese to high-chrome alloys. In addition to it, they also contain martensitic steels. The alloy used in feed end liners depend on the running conditions, expected lifetime of the mill and design of the casting. There also various installations available which require less maintenance costs and requirements. Moreover, the installation time of these liners is also less. You can also get the liners tailored according to your needs.
3. Classifying Liners
Another type of cement mill liners is classifying liners. They are the best form of cement mill liners because they maintain and keep the smooth flow of material. In addition to it, they are also energy efficient. Classifying liners are designed in such a way that they prevent reprocessing of material. This is done by appropriate distribution of material that needs to be ground. With their ability to classify grinding balls according to their diameter, classifying liners make sure that the material is ground efficiently with low energy consumption.
Final Word
While the scarcity of literature makes it hard to suggest the best cement mill liner, the majority are of the view that classifying liners are better than others. This is because they make sure that material is ground finely by classifying the grinding balls of different diameters in different compartments. This allows for homogenous distribution of raw material.
