Proper equipment maintenance is essential for ensuring efficient operation. Preventive maintenance can effectively reduce failure rates and extend equipment life.

1. Regular Cleaning: Promptly remove debris and blockages from the equipment to maintain internal cleanliness and reduce frictional losses.
2. Lubrication and Maintenance: Follow the manufacturer's specified lubrication cycle and promptly add lubricant or grease to reduce component wear.
3. Replacement of Consumable Parts: Punches, dies, and other parts are prone to wear after a period of use. Spare parts should be prepared in advance to avoid downtime.
4. Troubleshooting: Maintain an equipment fault log and regularly inspect key equipment components to identify potential problems.

1. Pulverizer
Function: Crush larger raw materials into fine particles suitable for pelleting. For example, for wood materials, wood chips and branches can be crushed into sawdust. For biomass pellet production, materials like crop straw can be reduced to uniform small pieces or powder through a pulverizer.

2. Dryer
Function: If the moisture content of the raw materials is too high, it will affect the pellet quality and storage performance. A dryer can reduce the moisture content of the raw materials. For example, in feed pellet production, some fresh grasses or grains contain a lot of moisture. After drying, the moisture content of the raw materials can be reduced to an appropriate range, generally around 10%-15%, which is beneficial for subsequent processing.

3. Screw Feed Conveyor
Sawdust from the pulverizer is fed to the small pellet machine via a screw feeder.

4. Pellet Making Equipment
Pellet Machine (Pellet Mill)
Function: Press the pre-treated raw materials into pellets. In biomass pellet production, the raw material is squeezed through the die and rollers of the pellet mill into pellets of a specific shape and size. For example, biomass pellets with a diameter of 6-10mm are produced for combustion for heating or power generation.

5. Cooler
Function: Freshly produced pellets are hot and soft. A cooler lowers the pellet temperature, hardens the pellets, and improves their strength and stability. During the production process, pellets exiting the pellet mill may reach temperatures of 70-90°C. After cooling, the temperature generally drops to near room temperature, for example, around 30-40°C.