🌲 Wood Pellet Machine Operation Manual
1. Introduction
The wood pellet machine is a device used to compress raw materials such as sawdust, wood shavings, rice husks, and crop stalks into biomass fuel pellets. It is widely used in biomass fuel plants, boiler rooms, power plants, and other industries.
2. Main Components
- Feeding system (inlet)
- Press roller and die (flat die or ring die)
- Main motor
- Reduction gearbox
- Control system
- Discharge outlet
3. Pre-Operation Checklist
- Ensure the machine is installed stably and firmly;
- Verify that the power supply voltage matches the machine’s specifications;
- Check whether all lubricants (especially for bearings and gearbox) are adequately filled;
- Remove any foreign objects inside the machine to prevent blockage or damage;
- Perform a dry run for 5 minutes to check for abnormal sounds or vibration.
4. Operating Steps
1. Start-Up
- Turn on the main power of the control cabinet;
- Start the main motor;
- Observe for smooth and stable operation.
2. Preheating
- For first-time use, feed in waste material mixed with oil to lubricate and polish the die;
- New dies must be conditioned to prevent blockage during operation.
3. Feeding
- Feed dry sawdust or blended raw material evenly (recommended moisture content: 10%–15%);
- Avoid overfeeding or feeding excessively wet material.
4. Monitoring Discharge
- Pellets should form properly, be solid, and not crumble;
- If pellets are irregular (e.g., too powdery or blocked), adjust the roller pressure or die temperature accordingly.
5. Routine Maintenance
- Clean the die and rollers after each shift;
- Regularly replace lubricating oil (especially in the gearbox);
- Check and tighten all bolts and fasteners regularly;
- If the machine is not used for an extended period, clean it and apply anti-rust oil;
- Replace the die when it is significantly worn.
6. Safety Precautions
- Operators must be trained and never insert hands into the feed port;
- Do not process raw materials containing nails, stones, or other hard impurities;
- If there are unusual noises or smoke, stop the machine immediately for inspection;
- Ensure all electrical components are protected from water, dust, and short circuits.
7. Common Faults and Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| Pellets not forming | Moisture too high/low, clogged die | Adjust moisture level, clean the die |
| Discharge blockage | Overfeeding, die too cold | Reduce feed rate, preheat the die |
| Abnormal noise | Damaged roller bearing, foreign object inside | Stop machine, check and remove object |