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How to reduce the wear of the roller surface during the granulation of the double roller granulator

2022/04/14
Severe roll surface wear will affect the production efficiency of the double roller granulator and the finished product size of the material. If it is serious, it will be necessary to stop the machine and replace the new roll surface. How to reduce the wear of the material on the roll surface during the use of the equipment? ?

double roller granulator
 
When the double roller granulator is granulating the material, the roller surface will gradually wear out. Therefore, it is necessary to ensure that the material is fed into the granulator evenly along the length of the roller. If the feed is uneven, annular grooves will appear on the roller surface, which will affect the normal operation of the fertilizer granulator, and the product size will be uneven. When feeding, the feeder not only needs to feed evenly and continuously, but its length must be consistent with the length of the roller.

The double roller granulator is sometimes equipped with a grinding wheel on the machine frame. When there are pits or grooves on the roll surface, the roll surface can be ground and repaired on the machine without removing the roll surface, or directly on the roll surface. Repair, which requires a build-up welding device on the fertilizer granulator. Some roller granulators are equipped with roller automatic axial reciprocating movement device, so that the roller surface wears evenly.

In addition, the wear of the roller surface will increase the discharge port, so the movable roller needs to be adjusted. When adjusting, you need to pay attention to keeping the two rollers parallel to each other to prevent skew. The movable roller is installed on the rocker arm or the double roller granulator with hydraulic compensation device. When the movable roller moves, it will automatically ensure that the axes of the two rollers are parallel.