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Solid-Liquid Separation in the Mining Industry pp 373–429Cite as

Transporting Concentrates and Tailings

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Part of the book series: Fluid Mechanics and Its Applications ((FMIA,volume 105))

Abstract

Ore, water and mineral pulps are transported among the different operational units of a mineral processing plant. Water is pumped through pipelines to the grinding plant to be mixed with the ore to form the pulp that constitutes the mill feed. The mill overflow is again mixed with water to adjust the solid content and is sent through pipes to be classified in hydrocyclones. Cyclone underflow with coarse material is sent back to the mill and the overflow goes to the flotation plant. Transport in the flotation plant and between flotation sections and solid–liquid separation units is through pipelines, and finally flotation tailings are transported to tailing ponds through pipelines or channels. This chapter of the book is related to the transport of pulps in mineral processing plants. Starting from the continuity equation and the equation of motion for a continuous medium, the expression for the pressure drop during fluid flow in a tube is obtained. Newtonian fluid behavior is used to treat cases of laminar and turbulent flows. The concepts of friction factor and Reynolds number are introduced and the distribution of velocity, flow rate and pressure drop in a tube are obtained. The transport of suspensions in pipelines is then treated, defining the different regimes separated by the limiting deposit velocity. First, the flow of heterogeneous suspensions is introduced and the form to calculate head loss is presented. Next, homogeneous suspensions modeled by different rheological approaches are discussed. Finally equations for the transport of suspensions in open channel are dealt with.

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Authors and Affiliations

  1. Department of Metallurgical Engineering, University of Concepcion, Concepcion, Chile

    Fernando Concha A.

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  1. Fernando Concha A.
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Correspondence to Fernando Concha A. .

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© 2014 Springer International Publishing Switzerland

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Concha A., F. (2014). Transporting Concentrates and Tailings. In: Solid-Liquid Separation in the Mining Industry. Fluid Mechanics and Its Applications, vol 105. Springer, Cham. https://doi.org/10.1007/978-3-319-02484-4_11

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  • DOI: https://doi.org/10.1007/978-3-319-02484-4_11

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-02483-7

  • Online ISBN: 978-3-319-02484-4

  • eBook Packages: EngineeringEngineering (R0)

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