Dilute Phase

Dilute phase conveying is the most common form of pneumatic conveying. Dilute phase systems transfer material at higher speeds and lower product-to-air ratios than dense phase systems of similar rates and distances. They are more common because the capital investment is typically less than a corresponding dense phase system and there is no need to be concerned about breakage or wear.

Dilute Phase Components

Most dilute phase systems are comprised of the following components:

  • An air generation device - Most commonly this is a Positive Displacement blower, but occasionally a fan, regenerative blower or compressor.
  • An airlock – This is most commonly a rotary valve, but can also be such items as a butterfly valve, flapper/dump valve, knife gate, venture, or other device.  Airlocks need to be located at the inlet of a pressure system and the discharge of a vacuum system.
  • A material to air metering device: This may be something as simple as a material feeder such as a rotary valve, screw conveyor or vibratory feeder, or as complex as an air inlet management system.
  • A material and air separation device – This is usually a pulse-jet fabric bag house of some sort. This may be felt or spun bound polyester, square or round, stand alone or in the form of a bin vent. Other less common means of separation and filtration include such items as cyclones.
  • Some type of conveyance medium – Typically tubing, piping or hose.

Comparison to Mechanical Mechanical Conveying:

Dilute phase conveying systems offer an alternative to mechanical conveying systems, such as screw conveyors, belt conveyors, vibratory conveyors, aeromechanical conveyors or bucket elevators.

Benefits of Dilute Phase Systems:

  • Easy to install and more flexible in routing
  • Lower maintenance
  • Easier to route, especially over longer distances
  • Easier to clean
  • Self-contained with less emissions in many cases
  • Easily expand in the future

 

Pressure Systems - Dilute Phase Conveying

Pressure Systems - Dilute Phase Conveying

Single pick-up area, multiple destinations, most efficient conveying option, low capital cost.

Vacuum Systems - Dilute Phase Conveying

Vacuum Systems - Dilute Phase Conveying

Single pick-up area, multiple destinations, most efficient conveying option, low capital cost.

Vacuum/Pressure Combination - Dilute Phase Conveying

Vacuum/Pressure Combination - Dilute Phase Conveying

Single pick-up area, multiple destinations, most efficient conveying option, low capital cost.

+ -

I'd like some more information...





Dilute Phase Systems
Dense Phase Systems
Eco Phase Systems
Rotary Airlocks
Slide Diverter Valves
Pneumatic Conveying Components
General Information



Have a comment?