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Article | REF: J3160 V1

Pneumatic classification

Authors: Pierre BLAZY, El-Aïd JDID

Publication date: June 10, 2010

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1. Pneumatic classification parameters

The main parameters affecting classification depend on the material, the device and its settings.

1.1 Material-dependent parameters

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1.1.1 Particle density and shape

All pneumatic selectors classify particles according to their speed of fall in a carrier gas. This speed depends on their density and shape. The more a particle's shape deviates from that of a sphere, the more it behaves as if it were lighter than the same spherical particle. This leads to the definition of a shape coefficientF,...

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