Examining predictive correlations for equilibrium concentration profiles in jetsam-rich systems

A bi-component fluidized bed system of glass ballotini and beach sand ilmenite of d 50 values 124 and 179 μm and particle densities of 2500 and 4500 kg/m 3, respectively, was examined, with the concentration of ilmenite above 50%. The results were compared with Rowe and Nienow's empirical corre...

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Bibliographic Details
Published inAdvanced powder technology : the international journal of the Society of Powder Technology, Japan Vol. 15; no. 3; pp. 311 - 320
Main Authors Leaper, M.C., Seville, J.P.K., Hilal, N., Kingman, S.W., Burbidge, A.S.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.01.2004
Subjects
flotsam
Fluidization
jetsam
mixing
segregation
jetsam
Fluidization
segregation
flotsam
mixing
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Summary:A bi-component fluidized bed system of glass ballotini and beach sand ilmenite of d 50 values 124 and 179 μm and particle densities of 2500 and 4500 kg/m 3, respectively, was examined, with the concentration of ilmenite above 50%. The results were compared with Rowe and Nienow's empirical correlation for flotsam-rich systems to assess the potential difficulties in using existing correlations for the system examined. The empirical relationship between the mixing ratio and the normalized fluidizing velocity for this specific system was found to be a modified version of the existing correlation. It was also found that segregation also occurred within the jetsam component, with some fine jetsam particles behaving as flotsam whilst the jetsam at the bottom of the bed was coarser than the original sample.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0921-8831
1568-5527
DOI:10.1163/156855204774150118