Optimized mill lining design can result in up to 40% less wear parts related downtime
The overall cost of a mill lining is determined largely by the cost associated with installation and maintenance. A drop in production, scheduled as well as unscheduled, can prove very expensive.
Some lining parts in a mill are more exposed to wear than others, and the wear life of the mill lining components can therefore, be very different. This means that fully utilizing the wear life of all lining parts in a mill may not be the most optimal solution since it can lead to added downtime and production loss.
How to improve the lining economy?
It might be more cost efficient to replace lining parts that are not fully worn out at the same time as worn out parts to avoid additional maintenance stops. After all, the purchase price of a mill lining often accounts for only a fraction of the cost for lost production in the replacement of liners.
However, your total cost can be reduced and your revenue increased by making sure that the different lining parts are designed to minimize the number of maintenance stops. Preferably, the wear life of the lining parts should be balanced so that they can be replaced at the same time or have equal increments of wear life. Metso does this by modifying the design or by combining different materials.
Moreover, it is of utmost importance that the liner wear is closely monitored, to allow for proper action. This could be done by using the Metso Followit program.
Metso uses mill performance and total cost comparison (TCC) simulations to optimize different liner parts so that they can be replaced at the same time and has developed solutions and software for this purpose.
Metso has the market’s widest range of grinding wear parts and services mean we can select exactly the right parts for your mill. We can offer and combine Metallic, Poly-Met, Rubber, Orebed and Megaliner mill liners as well as Grinding media.
Metso Poly-Met mill lining – a true problem solver.
Metso Poly-Met mill linings combine the most desirable properties of rubber and steel to maximum advantage. The shell plates can withstand high impact as they are made of highly resistant alloys in combination with rubber which substantially dampens the impact forces and also results in a lower lining weight. This makes Poly-Met an outstanding solution, particularly in heavy applications. The rubber imparts flexibility, facilitating ease of maintenance, and in combination with extremely hard metallic inserts maintain an efficient profile over the entire lining life.
Metso offers a complete Poly-Met solution including lifter bars, plates and grates. Alloys and profiles are selected based on your specific application and operating conditions. Different lining materials such as rubber, metallic and Poly-Met can be combined in the same mill to achieve optimal performance.
What makes your grinding mill unique? Make sure you have the right parts for the job with Metso.
Find out how Metso grinding wears and services can make the big difference for your mill here.