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Separating efficiency of a water elutriator
Author(s) -
Biddulph M. W.
Publication year - 1983
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690290613
Subject(s) - mechanics , mixing (physics) , spheres , flow (mathematics) , materials science , diffusion , environmental science , thermodynamics , engineering , physics , aerospace engineering , quantum mechanics
This paper investigates the separating efficiency of a vertical water elutriator operating on particle mixtures. In particular, comparisons are made with a previously developed mathematical model based on an eddy diffusion mechanism of mixing. Standard mixtures of glass spheres, of uniform size and shape, are used to study the equipment characteristics. It is found that the separating efficiency follows the same trend as predicted by the model and that “wall flow” of particles occurs. This affects the required water velocity, resulting in the equipment producing a top product generally purer than the bottom product.