Dilute Phase pressure conveying systems are used to convey bulk materials from one single source to one or multiple destinations, over long distances and with high capacity .
Pressure type systems usually use blower as prime mover & the pick-up velocities are lower.
It is based on the simple concept providing sufficient air to entrain, suspend and transport particle through pipeline. Pressure systems generally use rotary airlock as a feed device. Most suitable for raw materials of coarse particle size Lower power consumption than vacuum systems.
Specific Characteristics are :
- From one source to one or more collection points
- Low pressure with high conveying velocity
- Suitable for non or mildly abrasive products
Dilute phase Vacuum conveying system works on high pick-up high velocity, continuous vacuum conveying systems for short and medium distances.
Vacuum type usually use blower or fan for prime mover. It works on negative pressure for conveying the material from one or multiple pick up points to one discharge point.
With Vacuum conveying, materials are drawn to the delivery point through a totally enclosed pipeline, in a clean, contained stream of air generated by a vacuum blower.
As the air & material is drawn inside the pipe-line by vacuum, best suited for materials which are hazardous/toxic . As little higher pick-up velocities are used, the vacuum conveying systems may consume higher power if not designed correctly.
Advantages :
- Multiple pick up points,
- Low cost & maintenance,
- Operates on fairly simple controls,
- Constant flow operation
Dilute Phase Ventury Conveying:
Ventury eductors convert the blower output into a ‘vaccum which entrain and feeds powders, pallets and bulk solids The benefits are :
- No moving parts and no maintenance.
- No blowback and no mechanical shearing
- Replaces problematic, non performing & maintenance prone Rotary Valves.
- Best suitable for abrasive, fine & irregularly shaped products.
- Applications as divert as Powders, Plastics, Chemicals, Food & Dairy, Mining.... industries.
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