Read e-book online Solid-Liquid Separation in the Mining Industry PDF

By Fernando Concha

ISBN-10: 3319024833

ISBN-13: 9783319024837

ISBN-10: 3319024841

ISBN-13: 9783319024844

This publication covers almost the entire engineering technological know-how and technological elements of isolating water from particulate solids within the mining undefined. It begins with an advent to the sphere of mineral processing and the significance of water in mineral concentrators. The intake of water within the a variety of levels of focus is mentioned, as is the need of improving nearly all of that water for recycling. The booklet offers the basics below which strategies of solid-liquid separation are studied, drawing close combinations of discrete finely divided stable debris in water as a foundation for facing sedimentation in particulate structures. Suspensions, handled as non-stop media, give you the foundation of sedimentation, flows via porous media and filtration. The e-book additionally considers particle aggregations, and thickening is analyzed extensive. finally, chapters disguise the basics and alertness of rheology and the delivery of suspensions.

This paintings is acceptable for researchers and pros in laboratories and crops, and will additionally function extra interpreting for graduate classes on stable liquid separation in addition to for complex undergraduate and graduate point scholars for classes of fluid mechanics, solid-liquid separation, thickening, filtration and shipping of suspensions in tubes and channels.

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Extra resources for Solid-Liquid Separation in the Mining Industry

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Crain, R. E. (1976). Continuum theories of mixtures: Basic theory and historical development. The Quarterly Journal of Mechanics and Applied Mathematics, 29, 209–244. , & Drumheller, D. S. (1983). Theories of immiscible and structured mixtures. International Journal of Engineering Science, 21(8), 863–960. Bowen, R. M. (1976). Theory of mixtures. In A. C. ), Continuum physics (Vol. III). Waltham: Academic Press. Bustos, M. , & Tory, E. M. (1999). Sedimentation and thickening, phenomenological foundation and mathematical theory.

The relationship between the material and the spatial derivatives is obtained by applying the chain rule of differentiation to Eq. 23):   oga2 ðr; tÞ oga2 ðr; tÞ oga2 ðr; tÞ or þ Á G_ a ¼ ¼ ot Ra ot or ot Ra oga2 þ rga2 Á r_ ot oga2 þ rGa Á r_ ¼ ot ð2:25Þ ¼ where r (with a point above) is the material derivative of the deformation function r ¼ f a ðRa ; tÞ. Gradient of deformation tensor Consider two particles pa ; qa 2 Ba having the positions Ra and Ra þ dRa in the reference configuration; see Fig.

At concentration less than the critical, the mixture is called suspension and all interaction forces are transmitted from particle to particle through the fluid. At concentration greater than the critical, the mixture is called a porous medium, a porous bed or a sediment and the stresses are transmitted through the fluid and from particle to particle by directly contact. Fig. 1 Dynamic Process for a Particulate System 37 For sake of simplicity we will assume that the solid component also behaves as an elastic fluids, so that the tress tensor T s is given by: & ÀbI for u uc Ts ¼ ð3:17Þ Àðb þ ps ðu; uc ÞÞI for u [ uc where uc is the critical concentration, b is a constant and I is the second order unit tensor.

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Solid-Liquid Separation in the Mining Industry by Fernando Concha


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