1. Reasons for longitudinal tearing of PVC conveyor belts:
1. Vibration and impact cause fasteners to loosen and fall off, causing lining plates, guide plates, etc. to fall.
2. Foreign objects are mixed into the material, which are hard and angular, blocking and squeezing.
3. The rollers are damaged and the roller frames are scratched.
4. The conveyor belt is hung by the frame after serious deviation.
5. The sweeper is rolled into the roller (return sweeper), the bolts are loose, and there is a sign of bouncing.
2. Reasons for cracking of PVC conveyor belts:
1. Due to the limitation of space size, the conveyor belt is bent many times.
2. The joints have been repeatedly joined more than twice for various reasons.
3. Reasons for tearing of vulcanized joints of PVC conveyor belts:
1. The diameter of the redirection roller is small, and the conveyor belt is subjected to large bending stress.
2. The quality of the conveyor belt joints is poor, especially when there are more than three joints on a belt, the tensile strength is significantly reduced, or the canvas layer is cut off during gluing, or the grinding leaks, and the strength here is reduced.
3. For reversible conveyors, since there is only one direction when the upper and lower joints are overlapped, it is easy to be scratched by the sharp corners of the cleaner, unloader and other equipment on the belt.
4. The conveyor has a short working cycle, frequent starts, and large instantaneous tension.
4. Causes of damage to the rubber surface of the PVC conveyor belt:
1. The gap between the guide trough liner and the belt is not appropriate, causing abnormal wear, or foreign objects are embedded in the gap, causing abnormal wear or scratches.
2. The material flow rate at the guide trough is inconsistent with the conveyor belt speed, the drop is large, and the rubber surface wear is accelerated. 3. The roller is damaged, causing abnormal wear or scratches on the belt.
4. Illegal operation, welding slag burns during maintenance, and scratches on the cleaner, etc.
5. The slip of the belt can also cause abnormal wear of the belt.
