Expert analysis: Cause analysis and treatment measures for the rupture of the cone liner of the cone crusher

As the core equipment in the mine crushing process of the concentrator, the operation rate of the cone crusher often affects the operation cost of the entire mine to a great extent. During the crushing process of the crusher, the fixed cone lining plate and the fixed cone are fixed, the moving cone lining plate and the moving cone not only rotate at a slow speed, but also move with the lateral stroke of the eccentric sleeve, and the large pieces of ore are moving. The cone is broken during the rotation and lateral stroke movement, so the moving cone liner wears faster. The following is an introduction to the analysis of the reasons for the rupture of the cone lining plate of the cone crusher and the treatment measures.

1. Analysis of the reason for the rupture of the moving cone liner

1. The lining plate is not leveled and aligned during installation, and it is biased to one side. When the lining plate is broken, the load around the lining plate is uneven, resulting in the rupture of the lining plate.

2. When the lining plate is installed, the filler is not fully mixed and stirred evenly, and the filling strength is low, resulting in the rupture of the lining plate when it is broken.

3. When the lining plate is installed, the solidification time of the filler is not enough, the filling is not completely solidified, and the strength is low, which leads to the rupture of the lining plate when driving.

4. When the lining plate is installed, the locking screws are not fastened in place, the fastening strength is not enough, and the lining plate is loosened during the crushing process, resulting in the rupture of the lining plate.

5. When the lining plate is installed, the upper pressing and cutting ring is not welded firmly, or the welding seam is worn and welded during the crushing process, and the lining plate is loose, resulting in the rupture of the lining plate.

6. During the crushing process, the crushing cavity often enters the iron block, the hardness of the iron block is large, and the crushing load increases. When the rated load of the lining plate is exceeded, the lining plate is broken.

Second, the treatment measures for the rupture of the moving cone liner

1. The lining plate is leveled and aligned during installation, so that the load around the lining plate is evenly balanced when it is broken.

2. When the liner is installed, the filler is fully mixed and stirred evenly, so that the strength of the filler is high after solidification.

3. When the liner is installed, the solidification time of the filler is generally required to be about 16 hours, so that the filler is completely solidified and sufficient strength is ensured before it can be broken.

4. When the lining plate is installed, the locking screws are fastened in place, and the fastening strength is sufficient, and the lining plate is not easy to loosen during the crushing process.

5. When the lining plate is installed, the upper pressing cutting ring and the lining plate are firmly welded. During the crushing process, check whether the welding seam is opened once a month. If the welding is opened, it is welded firmly.

6. In the crushing process, in order to prevent the crushing cavity from entering the iron block frequently, a reasonable electromagnetic iron remover is installed on the head of the feeding belt to remove the iron block entering the crushing cavity, so that the material on the lining plate is balanced and uniform during the crushing process. .

When the load around the lining plate of the cone crusher is uniform, the performance of all aspects is optimized and in a better state, it can greatly reduce the production cost, improve the production efficiency, and bring greater benefits to the enterprise.