Pneumatic conveying is a widely adopted method for transporting dry bulk materials through enclosed pipelines using controlled air movement. It is often chosen because it reduces mechanical wear, limits dust exposure and supports cleaner handling across industrial sites.
The type selected depends on the behaviour and fragility of the product, along with its tolerance for airflow.
Dilute Phase Conveying
Dilute phase pneumatic conveying relies on high air velocity to keep lightweight, non-abrasive materials fully suspended as they move through the pipeline. It is frequently used for flour, starch and similar products where wear is not a key concern. The consistent airflow ensures continuous movement, making it a practical choice for facilities handling large volumes.
For anyone interested in learning more about pneumatic conveying, consider reaching out to a specialist such as //www.aptech.uk.com/pneumatic-conveying-systems.
Semi Dense Conveying
Semi dense pneumatic conveying sits between dense and dilute methods, using medium air velocities to carry a partially suspended product. This approach provides more airflow than dense phase while still reducing turbulence linked with higher speeds. It is commonly used for aeratable powders, including cement and fly ash, where stable movement is needed without excessive degradation. Semi dense systems offer an effective compromise in efficiency and material handling quality.
Dense Phase Conveying
Dense phase pneumatic conveying uses low air velocity to push material gently through a pipeline in compact slugs rather than keeping it fully airborne. This slower motion helps prevent damage to fragile particles and minimises abrasion within the system. It suits materials such as sugar, sand or delicate carbon-based granules.
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