Industry Info

Regular maintenance is required for the roller extrusion granulator to reduce roller skin wear

2023/04/20
 

The roller is also the most easily worn accessory in the granulation operation of the roller granulator. As the main part of material granulation, the roller skin is gradually worn and produces uneven particles. How to reduce the wear of the roller granulator is the most important thing.

Severe wear on the roller surface can affect the production efficiency of the roller granulator and the particle size of the finished product. In severe cases, it is necessary to stop the machine and replace the roller surface with a new one. How to reduce material wear on the roller surface through multiple efforts during equipment use? The main reasons for severe wear of the roller skin of the roller granulator are as follows:

1. Uneven feeding can easily cause uneven wear of the roller skin.

2. It is directly related to the material of the roller skin itself. The roller skin with poor material has poor wear resistance, corrosion resistance, and short service life.

3. The surface shape, specifications, dimensions, and operating conditions of the roller can have an impact on the machine.

4. Affected by the hardness, size, and shape of the processed material. Materials that are too hard, too large, or too irregular can easily cause uneven wear of the roller skin.

The reason for the wear of the roller skin of the roller granulator is that during the physical granulation of the roller skin, the roller surface will gradually wear out. Therefore, it is necessary to ensure that the material is evenly fed into the granulator along the length of the roller. If the feeding is uneven, circular grooves will appear on the roller surface, affecting the normal operation of the granulator, and the product particle size is uneven. When feeding, the feeder not only needs to feed evenly and continuously, but its length should also be consistent with the length of the roller.

Long term operation of the equipment inevitably results in wear on the roller skin of the roller granulator, which requires us to regularly shut down for maintenance. If we can repair it in advance when the wear reaches a certain level, can we avoid the need to replace the new roller surface in the future?

When the roller granulator is granulating materials, the roller surface will gradually wear out, ensuring that the materials are evenly fed into the granulator along the length of the roller. If the feeding is uneven, circular grooves will appear on the roller surface, affecting the normal operation of the granulator, and the product particle size is uneven. When feeding, the feeder not only needs to feed evenly and continuously, but its length should also be consistent with the length of the roller.

The wear of the roller surface can also increase the discharge port, so it is necessary to adjust the movable roller. When adjusting, it is necessary to keep the two rollers parallel to each other to prevent tilting. A pair of roller granulator with movable rollers installed on the rocker arm or hydraulic compensation device, which automatically ensures that the axes of the two rollers are parallel when the movable rollers move.

There is a grinding wheel installed on the rack. When there are pits or grooves on the roller surface, the roller surface can be ground and repaired on the machine without removing it, or directly repaired on the roller surface. This requires the installation of a welding device on the granulator. Some roller granulators are equipped with an automatic axial reciprocating movement device for the rollers, which ensures uniform wear and tear on the roller surface.

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