How To Change Cone Crusher Liners
Liners that go beyond their expected operating time could cause mechanical problems for the crusher. When a liner is pulled to far will stretch and break, and the stretching of a thin or damaged mantle can result in serious damage to the surface of the crusher.
There is no way to know when the liners have become worn-out. But, there are two indications that it's time to replace them:
Manufacturing amount
If you see a drop of 10% in production or throughput it's a sign that your Cone Mill Liners Foundry, needs to be replaced. Once you would like a full report on mill liners foundry, navigate to this website.
Liner thickness
If the liner is wearing uniformly throughout the chamber, you may want to replace it when it has worn down to approximately 1" (2.5 cm) thick at the lowest point. When it is about 3/4" to 5/8" (1.9 cm to 1.6 centimeters) thick the liner is likely to crack, causing the backing material to start to disintegrate. The liners will then begin to break loose. If the liners break loose and continue to move, they could damage the seat in the support bowl, or the head of the Cone crusher.
Some Cone Crushers feature an automatic liner change reminder. When new concave and mantle lines are put in place the automatic reminder will be reset. When the crusher is operating it monitors production capacity and calculates wear rate of the liner. If the cone's liners get to the point of maximum wear, the system sends a flashing reminder to "Change Cone" on the cone setting meter. Once the wear components are changed, reset the automated reminder system to continue effective and efficient crushing.
Important note: Do not place the concave lining of an existing crusher with an old mantle or a brand new liner into a crusher that has an old liner. The mingling of worn and new parts can alter the appearance of the crushing chamber and hinder the flow of feed into the crushing chamber. This will reduce the tons per hour produced.
A proper distribution of feed can increase the life of your liner
It is important to properly feed the crusher in order to maximize the wear life from your Shredder Parts and maximize the performance of your crusher.
Feeding methods that are not correct
Wear and tear on the liner can be caused by the segregated distribution of feed that supplies large material to one side and smaller material to the opposite side. This can also lead to bounce in the ring if the chamber pressure is higher than the pressure that is holding it down.
A feed that isn't properly centered, or that only sends a small portion part of the feed to just one crusher side, could cause wear on the liner and ring bounce that is not as good, and a poor shape of the particle. The crusher isn't performing at its best performance if it doesn't make use of the entire chamber.
Proper feeding technique
Choke feeding your Cone Crusher is the most effective way to prolong its life. Choke feeding lets you fill the chamber completely with materials. This helps push the material through the chamber. Choke feeding can also reduce the air pockets in the crushing chamber, reducing the development of long, flat particles.