Summary of the most problematic parts and solutions of the pellet machine

The feed pellet machine and biomass pellet machine is a key equipment in the pelletizing industry. Its working efficiency will directly affect the final output and quality. Do you know which parts of the pellet machine are most likely to have problems? What are the solutions?

Excessive machine noise

Bearing damage, poor gear meshing, loose fasteners.

Troubleshooting and solution: Check the bearings and replace them in time if damaged; adjust the gear meshing clearance to maintain a good meshing state; check the fasteners to ensure that there is no looseness.

Abnormal machine vibration

Unstable foundation, damaged parts in the gear box, and loose bolts.

Troubleshooting and solution: Check the equipment foundation to ensure that it is stable and without shaking; check the parts in the gear box and replace damaged parts; check the bolts and tighten the loose parts.

Mold blockage

Unreasonable design of the feed port, excessive moisture in the raw material, unreasonable gap between the roller and the ring die, and inappropriate compression ratio of the ring die.

Troubleshooting and solutions: Improve the design of the feed port and optimize the flow path of the raw materials; control the moisture content of the raw materials to avoid excessive moisture; adjust the gap between the roller and the ring die to a reasonable distance; adjust the appropriate ring die compression ratio according to the characteristics of the raw materials.

Motor overheating shutdown

Motor overload, poor ventilation, too high or too low power supply voltage.

Troubleshooting and solutions: Check the motor load to avoid overload operation; clean the area around the motor to ensure good ventilation; check the power supply voltage and adjust it to the normal range.

Ring die roller wears too fast

Raw material hardness is too high, the ring die or roller material is not suitable, and the installation is improper.

Troubleshooting and solutions: Check the hardness of the raw materials and select the appropriate ring die or roller material; replace high-quality RICHI ring die rollers; ensure that the ring die or roller is installed correctly and maintain the appropriate gap.

Ring die cracking

Hoop wear; improper installation; improper transmission plate, wear ring, ring die; foreign matter in the ring die; using too thin a ring die.

Troubleshooting and solutions: Update the clamp; correctly install the clamp of the ring die; correctly install the wear-resistant ring and the flange of the clamp; do a good job of removing iron and impurities. Use RICHI Machinery high-quality ring dies and ring dies with reasonable parameters.

Frequent bearing damage

There are hard foreign objects in the raw materials; the gap between the roller and the ring die is too large; inappropriate grease is used; too little grease is added to the roller; broken bearing end covers and seals are used; poor quality roller bearings produced by other manufacturers are used.

Troubleshooting and solutions: Improve raw material cleaning; correctly adjust the gap between the roller and the ring die; use grease as required; add enough grease as required; replace the bearing end covers and seals.

Uneven pellets

Uneven wear of the roller or ring die, inappropriate moisture content of the raw materials, and unstable feeding speed.

Troubleshooting and solutions: Check the wear of the roller or ring die, and replace severely worn parts in time; adjust the moisture content of the raw materials to the optimal granulation moisture content; stabilize the feeding speed and maintain uniform feeding speed.

Insufficient output and full load of motor

Due to excessive steam addition (only for raw materials that are particularly sensitive to temperature and humidity); too thick ring die; poor steam quality and high water content; insufficient conditioning of raw materials; too large gap between roller and ring die; excessive wear of roller and ring die; poor formulation or too large crushing particle size.

Troubleshooting and solutions: less steam should be added; ring die thickness suitable for raw materials should be used; readjust the air supply system; increase steam addition or extend conditioning time; readjust the gap; replace roller and ring die; adjust formulation or replace small-aperture screen.