Dense phase conveying systems are most often used to transport fragile or abrasive materials over long distances. By utilizing compressed air, this method conveys material at low velocities to reduce product degradation.
It operates in a “batch-like” manner, filling an ASME vessel, pressurizing the vessel, conveying, and starting over. Powder can remain in the convey line while the vessel refills with powder.Velocities can range from 200 to 1000 feet/minute, and are regulated by monitoring the convey pressures.Boosters may be required for longer distances.