Introduction
Press granulator is a kind of equipment for industrial granulation. It is widely used in feed, food and pharmaceutical industries. Its advantages are fast granulation, simple operation and easy maintenance. In the process of operation, some common faults are prone to occur, and the following is a brief analysis of some common faults of press granulator and their solutions.
1. Lack of Pelletizing Pressure
Causes of fault: 1. Faulty gear speed; 2. Chain wear too much; 3. Internal leakage of spring set or cylinder; 4. Pelletizing pressure under setting range.
Solution: 1. Change or reinstall gear and therefore adjust gear speed; 2. Change the chain; 3. Disassemble the spring set or cylinder and seal it; 4. Re-adjust the pressure.
2. Uneven Pelletizing
The reasons for the failure are: 1. The internal clearance of the mold is too large; 2. The feeding amount is inconsistent; 3. The adjustment of the gear speed is not suitable.
Solution: 1. Correctly adjust the clearance of the mold; 2. Make sure the feeding amount is consistent; 3. Re-adjust the gear speed.
3. Low Pelletizing Rate
Causes of failure: 1. The grease or dust in the gearbox leads to friction resistance; 2. The mold clearance is too large; 3. The pelletizing pressure is lower than the setting value and the pelletizing force is weak; 4. The material has poor fluidity.
Solution: 1. Clean the gearbox and add lubricating oil; 2. Readjust the mold clearance; 3. Re-adjust the pelletizing pressure to the required value; 4. Improve the fluidity of material.
4. Water Leakage
The main cause of this failure is that the sealing ring or O-ring is damaged.
Solution: Disassemble the granulator and replace the damaged sealing ring or O-ring and reassemble the granulator.
Conclusion
These are some of the common faults of press granulator and their solutions. In the process of use, we must pay attention to the daily maintenance of the machine, timely clean up the dirt and debris in the machine, keep the rotating parts clean and lubricated, and do a good job in preheating and tensioning of the transmission parts. Ensuring the correct use and timely maintenance of the press granulator can greatly reduce the occurrence of faults and ensure the normal operation of the machine.
