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Pneumatic transport (Pressure = pressure only (Long Distance, High…
Pneumatic transport
Pressure = pressure only
Long Distance
High capacities
Weighting inaccurate
pressure difference
Good when in one point and transported to different parts
Greater capacity than vacuum type
Vacuum = suction only
pressure difference
No leaked air
No temperature increase
Usable with any silo instalation
Hygenic
Criteria for transport
Suspension speed of solid materials (ws)
Air speed (w)
Mixture relation
Air speed > suspension speed
S = Cw.A.ro/2.w^2
Driving force
Compressed air
Vacuum
Combination (vacuum + pressure)
1) Vacuum: to get material in
Pressure to longer distance
Purpose?
Transport solid particles
Max mass transported
50 kg
What?
Air will carry solid particles
Convyer capacity
few kg/h to 1000 t/hr
Diameter: 1 cm to 80 cm