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pneumatic conveying Systems
Rajdeep’s proven specialized
designs of Pneumatic Conveying gives a dust free
operation. PNEUMATIC conveying system is a totally
integrated system with Material Loading, Conveying,
Dust Collection, Weighing & Batching and control
system.
Rajdeep’s pneumatic systems have high degree
of flexibility, required low space & low maintenance
& also weatherproof operation
Rajdeep’s has large solid’s data bank &
experience of number of installations, Rajdeep’s has
expertise in Pneumatic Conveying.
Pneumatic conveying refers to the moving of solids
suspended in or forced by AIR
stream through horizontal and/or vertical pipes.
Pneumatic conveying can be used for particles
ranging from fine powders to pellets.
Pneumatic Conveying is
generally segregated in Two Types
Amount of solid Conveyed in Kg per Kg
of Air / Gas decides the terminology of Lean or
Dense Phase System. (Refer The Chart)
Rajdeep’s proven
Capabilities in Conveying System
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Conveying Capacity up to 35
Ton Per Hour
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Conveying Length up to 400
Mtr
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Conveying solids BULK Density
ranges from 150 – 2200 Kg/m3
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Conveying with Close Loop System
by conveying media Inert Gas (Nitrogen)
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Solids conveyed like PTA powder,
Polyester chips, LLDPE, ESP Dust, Talcum Powder,
Grain Flour & many more.
Various Equipments
used in Pneumatic Conveying
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Roots Blower / Centrifugal
Fan
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RAL (Rotary Air Lock Valve)
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Pressure Vessel & Control
Instruments
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Product Separator / Vent Filter /
Dust Collector
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Bag dump /Unloading Station.
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Storage Silos/hoppers
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Special valves for diverting the
flow/metering
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Control Panel
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Piping with special cross section
bends
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Gas cooling Heat Exchanger for
Close Loop Systems
Following table is self
explanatory for the Selection of Dense or Lean Phase
System.
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COMPARISON CHART FOR LEAN PHASE AND
DENSE PHASE SYSTEM |
| |
|
NO |
PARAMETER |
LEAN PHASE |
DENSE PHASE |
|
1 |
Capacity (Q) |
Q<50 TPH |
1<Q<500 TPH |
|
2 |
Loading Ratio ‘u’
Kg of Solids /Kg of Air
|
0<u<10 |
2<u<100 |
|
3 |
Conveying Distance L |
L<400 MTR Pressure
L<100 MTR Vacuum |
5<L<500 |
|
4 |
Particle shape |
Any except needle & squeezed |
Sharpe edge & interlocking not at all
acceptable |
|
5 |
Particle characteristics
|
Not recommended for highly abrasive
material like sand, alumina |
Any |
|
6 |
Air retention |
No matter |
Good |
|
7 |
Air velocity |
Start 18-22m/s
End 22-30m/s |
Start 3-9m/s
End 9-15m/s |
|
8 |
Prime mover & pressure
|
Blower, less than 1 bar. |
Compressor more than 1 bar. |
|
9 |
Loading Equipment |
Rotary valve and Ventury |
Pressure vessel and
high pr. valve |
|
10 |
Power required |
2
to 2.5 kw per Ton |
1 to 1.5 kw per Ton |
|
11 |
Economics |
Economical for low tonnage & short
distance i,e less than 100 mtr |
Economical for high tonnage & longer
distance. |
|
12 |
Operation |
Simple in operation w/o many interlock |
Instruments & interlocking required |
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