Common faults and maintenance methods of biomass pellet making machine

 

The normal operation of the biomass pellet making machine can ensure the production efficiency, so the daily maintenance and maintenance of the biomass pellet making equipment is very important. Due to the long-term operation of the biomass pellet making machine, various failures will inevitably occur, which requires us to accumulate a wealth of experience in troubleshooting for a long time. The following is the maintenance method of our factory for the common faults of the biomass pellet making machine for your reference.

Raw materials cannot enter the pelletizing room 

Cause of issue:

1. The conditioner is blocked or the feed port is arched
2. Failure of the feeder auger transmission
3. The feeder auger is blocked 

Repair method:

1. Clear the conditioner or feed port
2. Check the feeder auger drive device and troubleshoot
3. Clean the material on the feeder auger 

There are raw materials entering the granulation chamber but no granules can be pressed

Cause of issue:

1. Die hole blocked
2. The raw material has too much moisture
3. Die roll gap is too large
4. The feeding scraper is severely worn
5. Die roll is severely worn

Repair method:

1. Clear the feed in the die hole
2. Control the moisture in raw materials and steam
3. Re-adjust the gap between ring die and press roller of biomass pellet making machine
4. Replace the scraper and die roller 

The biomass pellet making machine motor cannot start

Cause of issue:

1. There is material accumulation in the biomass pellet mill pelletizing room
2. There is a problem with the circuit
3. The travel switch cannot touch the gate or the lever on the gate

Repair method:

1. Clear accumulation
2. Check the circuit and troubleshoot
3. Check the status of the travel switch

Noise, severe vibration

cause of issue:

1. The bearing is damaged
2. Severe wear of ring molding roller
3. The gap between the ring die and the pressure roller is too small
4. There is foreign matter in the conditioner or feeder
5. The spindle bearing is too loose.

Repair method:

1. Replace the bearing
2. Replace the mold roll
3. Properly increase the gap between the ring die and press roller of biomass pellet making machine
4. Clean up foreign objects
5. Tighten the nut to reduce the clearance 

Unreasonable fluctuations in the host load of the granule or uneven granule quality

cause of issue:

1. The steam supply of the steam pipe is insufficient or the pressure changes from time to time
2. Unstable material conveying
3. Deflection plate scraper wear causes uneven feeding

Repair method:

1. Check the steam pipeline
2. Adjust the feeding speed
3. Replace the deflector scraper 

The biomass pellet making machine stops while it is working

cause of issue:

1. The V-belt tension is not enough to make the speed controller move
2. The speed control instrument parameter setting is unreasonable
3. Part or all of the V-belt is severely worn or broken
4. The main shaft rotates due to overload or impurities stuck between the pressure roller and the ring die, and the travel switch falls off
5. The pressure of the hoop is not enough, or the brake disc is slipped with grease, which causes the spindle to rotate and the travel switch is disengaged
6. Line failure

Repair method:

1. Re-adjust the tension of the V-belt or check the pressure value on the pressure gauge of the hydraulic system, if necessary, reset the pressure value (be careful when adjusting)
2. Reset its parameters
3. Reset the spindle and travel switch
4. Reset the hydraulic pressure of the hoop or clean the brake disc
5. Reset the spindle and travel switch
6. Check the line

The biomass pellet making machine is often blocked

cause of issue:

1. Uneven distribution of materials worn by the deflection scraper
2. Pressure roller wear
3. The press rollers on top of each other are stuck
4. Wrong assembly position of deflection scraper
5. Feed water content is too high

Repair method:

1. Replace the deflection scraper with a new one
2. Replace with a new press roller
3. Check the pressure roller
4. Reassemble the deflection blade
5. Reduce moisture content

No matter which pellet machine manufacturer you purchased from, as long as the pellet machine equipment fails, you can refer to the above common faults and maintenance methods of the biomass pellet making machine for analysis and treatment. If you still cannot solve your problem, you can contact us to discuss.