Pneumatic conveying systems are frequently chosen by powder processing companies. In addition to efficiently transporting bulk powder, these systems can be tailored to fit both the plant’s needs and the material’s properties. However, despite its versatility, a pneumatic system may not always be the best option. To determine whether it is suitable for your needs, let’s examine its advantages over other types of conveying systems, such as mechanical conveying systems, as well as any potential drawbacks depending on your specific requirements.
Pneumatic conveying systems offer numerous benefits compared to other conveying systems, including:
1. Reduced maintenance requirements. In comparison to mechanical conveying systems, pneumatic conveyors have fewer moving parts and typically require less maintenance.
2. Improved safety. With fewer moving parts and lower maintenance needs, pneumatic conveying systems pose less risk to operators and maintenance workers.
3. Limited spillage and dust leakage. By transporting products through an enclosed pipeline, pneumatic conveying systems contain products and dust more effectively than mechanical conveying systems.
4. Higher sanitation standards. The enclosed pipeline of pneumatic conveying systems greatly reduces the risk of product contamination, resulting in a cleaner plant overall. The pipes can also be cleaned and dried through CIP.
5. Increased flexibility. Pneumatic conveying systems can be customized to fit around existing powder processing equipment, taking up less space and providing more flexibility. This includes the ability to have multiple infeed and destination points, as well as longer conveying distances.
While pneumatic conveying systems are commonly used for powder processing, they may not be suitable for every plant. Some potential drawbacks may include:
1. Higher energy consumption. Due to the use of an air stream, these systems often require more power to achieve the necessary air pressure.
2. Need for a larger dust collection system. To separate the product from the air stream at the final destination, pneumatic conveying systems typically require a larger dust collection system.
3. Challenging for certain materials. While lower-density bulk powders like flour and sugar are easily conveyed by air, materials with larger particle sizes or high stickiness may be problematic. For instance, materials with a high-fat content can accumulate in the pipeline.
4. Not suitable for flammable bulk solids. When combustible dust is suspended in the air and comes into contact with an ignition source, it can cause deflagration and other fire hazards. As pneumatic conveying systems rely on air to move products,