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Technical-economical feasibility of using centrifugal pumps in high-density thickened tailings slurry systems
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.
GIW Industries Inc..
GIW Industries Inc..
2005 (English)In: Paste 2005: proceedings of the Eighth International Seminar on Paste and Thickened Tailings; 20 - 22 April 2005, Santiago, Chile ; Addendum to the seminar proceedings: Keynote and general reporter addresses / [ed] Richard Jewell, Perth, WA: Australian Centre for Geomechanics, 2005, 195-204 p.Conference paper, Published paper (Refereed)
Abstract [en]

Pumping simulated tailings slurry at a high solids content has been investigated at the GIW Hydraulic Testing Laboratory in a 0.075 m diameter loop with a centrifugal pump with an auger-like inducer. The results and earlier experiences from the Laboratory and some reported data indicate that viscous slurries characterized by shear stresses in pipeline transportation of 100 to 200 Pa can be pumped effectively with centrifugal pumps. Stresses in this range were reported in pipeline, flume and viscometer experiments with typical base metal tailings slurries at concentrations by volume of 44% in pilot-scale thickening tests. The corresponding concentration by mass,70%, gave a non-segregating mixture which could be disposed at slopes of about 4%. With this type of slurry, an overall economical comparison here indicates that centrifugal pumps are a cost-effective alternative also in high pressure applications (4 MPa) corresponding to a distance of 1000 m when pumping 300 tonnes per hour.

Place, publisher, year, edition, pages
Perth, WA: Australian Centre for Geomechanics, 2005. 195-204 p.
National Category
Water Engineering
Research subject
Water Resources Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-32755Local ID: 75755050-8a9e-11db-8975-000ea68e967bOAI: oai:DiVA.org:ltu-32755DiVA: diva2:1005989
Conference
International Seminar on Paste and Thickened Tailings : 20/04/2005 - 22/04/2005
Note
Godkänd; 2005; 20061105 (ysko)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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