Reversible conveyors primarily address the need to transport materials in both forward and reverse directions. They are widely used for short-distance transport. However, when the transport distance is longer, technical limitations reduce their applications. In 2022, Company C proposed using a reversible air slide conveyor with a capacity of 300t/h and a distance of 70 meters for the storage of mineral powder. Although Darko has some experience with short-distance reversible convoyeurs à glissière d'air, this is our first attempt at such a large capacity and distance with multiple discharge points. Therefore, Darko focused on the following technical issues:
1. Drive System Design
First, we determined that the drive should be at one end of the conveyor. This design avoids the need for two drives at both ends, simplifying operation. When one end is driving, the other end remains inactive. This setup reduces the risk of mechanical accidents and ensures smooth production.
Next, we considered placing the drive in the middle. However, we found that this would complicate the structure and increase stress on the chain, reducing its lifespan. Therefore, we decided to place the drive at one end for simplicity.
2. Chain Tensioning
Once we chose the one-end drive, chain tensioning became critical. The long transport distance requires effective tensioning. We opted for a rear tensioning system, which includes weight tensioning and screw tensioning. After evaluation, we selected a simple rear tensioning method to minimize wear and extend the lifespan of the chain and components.
3. Chain Transition Handling
After deciding on the drive and tensioning methods, we focused on handling chain transitions. Poor transition handling can lead to chain jams and affect normal operation. In reversible operation, we need to manage tensioning for both the upper and lower chains. Thus, we added a transition structure between the drive sprocket and the lower chain to ensure smooth operation.
4. Intermediate Discharge Design
The reversible air slide conveyor is installed at the top of the storage facility, primarily for material entry. Therefore, it must accommodate multiple discharge points. To prevent blockages, we installed discharge openings in the middle and ensured that the opening below the drive sprocket is always open. This design helps manage different types of materials and prevents mixing, which can affect product quality. We implemented high-pressure air blowing at the intermediate discharge points to solve this issue effectively.
Conclusion
Through the design optimization of the reversible air slide conveyor, Darko meets high capacity and long distance transport needs while ensuring stable operation and efficient material entry. We are committed to providing high-quality solutions to enhance production efficiency. For more information, please feel free to nous contacter.
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