1. bookVolume 46 (2021): Edition 341 (December 2021)
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eISSN
2256-0939
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30 Aug 2012
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access type Accès libre

Theoretical Study of Vibrocentrifugal Separation of Grain Mixtures on a Sieveless Seed-cleaning Machine

Publié en ligne: 22 Dec 2021
Volume & Edition: Volume 46 (2021) - Edition 341 (December 2021)
Pages: 116 - 124
Reçu: 27 Apr 2021
Accepté: 08 Nov 2021
Détails du magazine
License
Format
Magazine
eISSN
2256-0939
Première parution
30 Aug 2012
Périodicité
2 fois par an
Langues
Anglais
Abstract

The article presents an analysis of known developments on creation of sieve-less pneumatic vibration centrifuges separating devices and processes of separating seed mixtures into fractions according to the complex of physical and mechanical properties of components. Mechanistic and mathematical models for studying the movement of particles over the sieve-free surface of pneumatic vibration separators were developed, theoretical studies of movement of seed mixture components were conducted and the most acceptable pneumatic vibration centrifugation process was determined by likeness to the process occurring on the separating surface of pneumatic sorting tables. To achieve the greatest separation of particles on the complex of their physical and mechanical properties (density, geometric dimensions, aerodynamic properties of seeds) is possible with the same direction of oscillatory motion and rotation of the separating surface performing the rotation in the direction from a larger radius to a smaller radius of the surface, in the “fluidization” mode, i. e. i.e. with periodic separation of the lower particles of the layer from the separating surface at simultaneous blowing of the layer by an air stream.

Keywords

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