Vacuum Conveying – Lean Phase

Lean and dilute phase vacuum transport systems generally use positive displacement extractors to provide a vacuum (up to 50%) to transport materials through a pipeline to the receiving vessel where the air and product are filtered and separated. Low capacity blower systems are also available.

 The product enters directly into the pipeline or via a feeder (rotary valve or screw loader) if dosing is required, is suspended in the air flow and is transported at relatively high speeds according to particle size and density. The conveyed product is unloaded from the receiving vessel continuously through a rotary valve or intermittently through valves.