By R.Q. Honaker, W.R. Forrest
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Figure 1 shows the schematic of the hindered-settling column used in this study. The design was based on that of a Linatex Hydrosizer™. 25-in) inside diameter Lexan tubing. 5-cm (12-in) long middle section. The length of the middle section can be changed to vary the overall column height. The column sits on a stainless steel dewatering cone, which is attached to an electro-pneumatic pinch valve. The valve is controlled by a PID controller, which also monitors the bed pressure. The teeter water and feed water rates are controlled with rotometers.
Electronic edition published 2009. 16) © 2003 by the Society for Mining, Metallurgy, and Exploration. All rights reserved. Electronic edition published 2009. 0 Particle Size (mm) FIGURE 10 Slip velocity values calculated for a range of particle sizes and densities using a suspension density of 1,484 kg/m 3. 3 mm/s at the principal separation point in the Reflux Classifier. The intersection with the curves provides the D50 values for the separation. ranging in density from 1,550 to 2,000 kg/m3, with ρsusp = 1,484 kg/m3.
Journal. 27(6):1043–1044. Zuber, N. 1964. On the dispersed two-phase flow in the laminar flow regime. Chem. Engng. Sci. 19:897–917. © 2003 by the Society for Mining, Metallurgy, and Exploration. All rights reserved. Electronic edition published 2009. Modeling of Hindered-settling Column Separations Bruce H. Kim*, Mark S. Klima*, and Heechan Cho† A phenomenological model was developed to describe the operation of a hindered-settling column. The model is based on the convection-diffusion equation as applied to hindered-settling conditions.
Advances in gravity concentration by R.Q. Honaker, W.R. Forrest