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The product feed into the pipeline is done with rotary valves or injectors. Lean phase conveying is used for simple bulk materials and such kind of product which are not sensitive to attrition or breakage.
Lean phase conveying can be designed as pressure system or as vacuum system.
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Pelletron offers 3 types of pneumatic conveying systems
DILUTE PHASE CONVEYING
Product completely dispersed in gas flow
High gas velocities: v=25-40 m/s (5000-8000 ft/min)
Low product to air ratio: range 1-10 to 1
Low to medium pressure drop: p= 0.1-1.0 bar (1.5-15 psig)
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Dynamic Air offers 16 different pneumatic conveying concepts:
LDP 4000 Pressure Concept™
Continuous Dilute Phase Pressure System
The LDP 4000 Pressure Concept Conveying System is a dilute phase, low pressure, medium velocity, continuous conveying system. It is generally used for conveying low to high density and/or non-abrasive materials where degradation of the conveyed material is somewhat of a concern. Examples include iron oxide, coffee beans, pinto beans, flour, fine chemicals, grain, malt, plastic pellets, sugar and salt.
Typical conveying velocities are generally about 2000 feet per minute (10 m/sec) and conveying pressure is up to 15 PSIG (1 barg).
This concept utilizes a rotary airlock feeder to control the feed rate to the conveying line. DC-5 Air Saver technology is used to minimize and optimize the low pressure supply air which is supplied by a low pressure positive displacement blower.
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Dynamic Air offers 16 different pneumatic conveying concepts:
LDV 2000 Vacuum Concept™
Continuous Dilute Phase Vacuum System
The LDV 2000 Vacuum Concept Conveying System is a dilute phase, high velocity, low pressure, continuous vacuum conveying system for shorter distances. It is generally used to convey low to medium density and non-abrasive materials. Examples include flour, kaolin clay, plastic pellets, grain, malt, corn, starch and plastic resin.
Typical conveying velocities are generally in excess of 4000 feet per minute (20 m/sec) and vacuum conveying pressures of up to 15 inches (381 mm) of mercury (hg).
The material is fed into the conveying line on a continuous basis by vacuum which is supplied by a low pressure positive displacement blower. The system includes a vacuum pickup nozzle, vacuum conveying line, a vacuum filter receiver, a rotary airlock feeder and a positive displacement blower.
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CAMCORP manufactures a wide range of blower packages for pneumatic conveying systems. Our systems are conventional dilute phase, either pressure or vacuum. Mounted on heavy-duty frames, our blower packages meet the highest standards of quality and durability.
System Options
- Positive displacement blower packages, horizontal and vertical configurations
- Pneumatic receivers: Poly-El and filter bag designs
- Rotary airlocks, diverter and scaling valves
- Control panels: PLC or relay logic control
- Batch or continuous systems
- Bin vents
- Bag dump stations
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