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Empirical correlations for the prediction of cake dewatering characteristics
Date
1989-1
Author
HOSTEN, C.
SASTRY, KVS
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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The irreducible equilibrium saturation and dewatering kinetics of vacuum-dewatered filter cakes are studied. Limitations of available empirical correlations for cake dewatering characteristics are presented. The mechanisms of air displacement dewatering are delineated as no-air-flow and air-flow dewatering regimes, and new nondimensional groups combining the pertinent parameters in each regime are proposed for correlating the equilibrium saturation. On the basis of the capillary flow dynamics, a nondimensional group is formulated for the correlation of dewatering kinetics in the absence of air flow rate data. The correlations are verified with the experimental data obtained from the filtration of hematite slurries and an empirical equation based on the same data is suggested for equilibrium saturation predictions.
Subject Keywords
Control and Systems Engineering
,
Geotechnical Engineering and Engineering Geology
,
Mechanical Engineering
,
General Chemistry
,
Engineering, Chemical
,
Mineralogy
,
Mining and Mineral Processing
URI
https://hdl.handle.net/11511/51945
Journal
Minerals Engineering
DOI
https://doi.org/10.1016/0892-6875(89)90069-1
Collections
Department of Mining Engineering, Article
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C. HOSTEN and K. SASTRY, “Empirical correlations for the prediction of cake dewatering characteristics,”
Minerals Engineering
, pp. 111–119, 1989, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/51945.