How to Solve Common Problems in Making Wood Pellets at Home with Wood Chip Pellet maker Machine?
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The first common problem: loose, easily cracked, and crumbles easily when squeezed. There are two main reasons: the raw material moisture content is too high (above 18%) or too low (below 10%), or the gap between the pressure roller and the die is too large. Solution: First, check the moisture content of the raw material by hand. If it clumps and doesn't break apart, the moisture content is too high. Spread the raw material out to dry for 1-2 days, or use a household dryer to assist in drying. If it crumbles easily when squeezed, the moisture content is too low. Spray a small amount of water to adjust. If the moisture content is normal, adjust the gap between the pressure roller and the die, reducing it by 0.05-0.1mm to increase the extrusion pressure. This usually solves the problem quickly.
The second common problem: blockage at the feed inlet or compression chamber of the small biomass pellet maker machine. This is often caused by raw material particle size exceeding the standard (above 5mm), excessive feeding speed, or the raw material becoming damp and sticky. Solutions: 1. Immediately stop the machine and disconnect the power. Wait for the equipment to completely stop before cleaning. 2. If the feed inlet is blocked, gently clear it with a wooden stick or disassemble the feed hopper for cleaning. 3. If the pressing chamber is blocked, open the equipment maintenance door and use a special tool to clean the internal clumps of raw material and blockages in the die holes. After cleaning, check the particle size of the raw material and screen out any excessive material for re-crushing. 4. Control the feeding speed during subsequent feedings, maintaining a uniform low-speed feed to avoid re-blocking.
3. Common problem: Biomass sawdust pellet machine motor overheating and frequent tripping. The main causes are equipment overload (too much feed), unstable voltage, or poor motor heat dissipation. Solutions: Immediately stop the machine to cool it down. Check the feed rate and reduce the feed speed to ensure the motor current is within the rated range. If the voltage is unstable, pause production until the voltage stabilizes, or equip the machine with a small voltage stabilizer. Check the motor heat sink; if there is dust accumulation, clean it with a brush to ensure proper heat dissipation. Note: Do not force the machine to start when the motor is overheated to avoid burning out the motor.
4. Common problem: Pellet surface is black and has a burnt smell. The cause is excessive frictional heat generated by the raw material within the equipment, resulting in excessively high temperatures (above 110℃) and lignin carbonization. Solution: Increase the feeding speed to allow the raw material to pass through the pressing chamber quickly, reducing the time spent generating heat through friction. If the feeding speed is already at maximum, appropriately increase the gap between the pressure roller and the flat die (approximately 0.05mm) to reduce frictional resistance. Simultaneously, check the moisture content of the raw material; if it is too low, spray a suitable amount of water to adjust it, as the moisture can absorb some heat and lower the temperature.
The fifth common problem: The small ring die wood pellet making machine exhibits abnormal noise and severe vibration during operation. This is often caused by hard impurities (nails, stones) in the raw material, uneven wear of the pressure roller and flat die, or loose anchor bolts. Solution: Immediately stop the machine and disconnect the power. Clean the impurities from the raw material; inspect the surfaces of the pressure roller and flat die; if uneven wear is present, grind and repair; if severely worn, replace them; check the anchor bolts, tighten them if loose, and ensure the equipment is placed stably. For household use, avoid processing excessively hard raw materials (such as large pieces of hardwood scraps) to reduce component wear and the risk of abnormal noise.
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FAQ
1.What is the price of equipment for the homemade sawdust pellet machine?
It costs approximately US$1,500.00 - 25,000.00
2. If equipments have some quality problem, how would you deal with?
We will responsible for all the quality problems. Change all the parts for free.
