A customer who purchased our biomass briquette extruder recently contacted us. he could not produce qualified briquettes.
We immediately sent an engineer to check. After careful investigation, we found that there was a problem with the angle of the screw propeller of the biomass briquette extruder. After further inspection, we learned that the screw was seriously worn. In view of this, we suggested to the customer that the screw angle could be repaired by welding a layer on the screw.
After repairing the screw angle according to our suggestions, the customer's biomass briquette extruder was able to produce briquettes normally again.
The customer was very satisfied with this and also purchased some additional screw propellers as spare parts, so that if the previously used screw propeller was worn again, he could quickly replace it to ensure that production could continue and proceed smoothly.
It should be noted that:
- The angle of the screw of the screw propeller is not a fixed value, it should be adjusted accordingly according to the raw materials used.
- During the long production process, the screw will inevitably wear, which will also cause its angle to change. Therefore, after a period of production, it is necessary for customers to check the screw angle and repair it in time.
- If the customer changes the raw materials and confirms that other relevant factors are correct, but still cannot produce coal balls smoothly, then the screw angle should also be considered to be changed. After all, the screw angles suitable for different raw materials are often different, and a unified standard cannot be adopted in general.
The screw propellers on biomass briquette machines are vulnerable parts and are key components for pushing biomass raw materials inside the briquette machine.
Common faults and maintenance of the screw propeller on the biomass briquette machine
Blocking problem:
- If the biomass raw material contains large lumps or the humidity is too high, it is easy to cause the screw propeller to be blocked.
- Solution: Stop the machine in time, open the corresponding cleaning port, clean out the blocked material, check the pretreatment procedure of the raw material, and ensure the particle size and humidity of the feed.
Wear failure:
- After long-term use, the spiral blades and the shaft are prone to wear, especially on the edges of the blades and the parts where they rub frequently with the material.
- Solution: Check the degree of wear regularly. Minor wear can be repaired (such as welding wear-resistant materials, etc.); severe wear requires timely replacement of the screw propeller or corresponding parts.
Power transmission failure:
- Parts such as the coupling connecting the shaft are loose or damaged, which will cause the screw propeller to fail to obtain power for rotation normally.
- Solution: Pay attention to the connection of these power transmission parts on a daily basis, and tighten or replace the problematic parts in time.
biomass briquette machines screw propellers for sales
The EP screw propeller is made of high-strength wear-resistant alloy steel. During the biomass briquette process, the screw propeller needs to constantly contact various biomass raw materials (such as wood chips, rice husks, straw, sawdust, wood, etc.), and must withstand the friction and extrusion caused by the raw materials and the impact force generated by the flow of materials. Wear-resistant alloy steel has sufficient strength to cope with these external forces.
The screw propeller is a key component for pushing biomass raw materials inside the briquette machine. When the biomass briquette machine is started, the biomass raw materials will be continuously pushed forward along the direction of the spiral under the rotation of the spiral blades. The materials will continue to be compressed and gathered, and the pressure will become greater and greater. Finally, they will be squeezed through the mold and other forming parts to become regular rod-shaped biomass fuel products.
