Pneumatic Conveying Systems

Pneumatic conveying is the movement of BULK SOLIDS through pipe using a gas (air is commonly used) the motive force. It differs from hydraulic or slurry conveying in that the gas expands continuously along the pipe length. The flow regime in the pipe depends greatly on the ratio of solids to air and the particle.

Essentially, the two most distinct categories of pneumatic conveying can be described as either low pressure (Dilute phase/Lean Phase) or high pressure (Dense phase) conveying systems. The choice between dilute and dense phase operation is typically dependent on the material properties. In general, bulk materials with poor air retention capabilities are less suited for dense phase system and granular products with narrow particle size distribution have good air permeability and are well suited for dense phase conveying.