• Kilburn Engineering Limited

Pneumatic Conveying System

The Pneumatic Conveying System is designed and constructed in technical collaboration with Process Systems International lnc, U.S.A. Pneumatic conveying is the art of transporting bulk materials through a pipeline by either a negative or positive pressure airstream. This method of conveying is suitable for a vast range of products and materials, and has the following advantages: dust free transportation; flexibility in routing - can be transported vertically and horizontally by the addition of a bend in the pipeline; distribution to many different areas in a plant and pick-up from several areas; low maintenance and low manpower costs; multiple use - one pipeline can be used for a variety of products; pipelines can be used to convey high valued products; and, use of automation and control. A pneumatic conveying system consists of four distinct zones, each requiring its own specialized hardware to effect the required operation. These are: the prime mover; the feeding, mixing and acceleration zone; the conveying zone; and, the gas solids separation zone. The pneumatic conveying systems transport the material in different modes depending on the particle concentration of the material. The common modes are dilute phase systems and dense phase systems. In addition to the modes, pneumatic conveying is done through different systems, in order to meet specific requirements. These are positive pressure, negative pressure, combined negative-positive pressure and closed loop systems.