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Ultrasonic velocity profiling of flows related to wet low intensity magnetic separation
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
2013 (English)In: Conference in Minerals Engineering: Luleå 5-6 February 2013 / [ed] Jan Rosenkranz; Tommy Karlkvist, Luleå, 2013, 157-168 p.Conference paper (Other academic)
Abstract [en]

The internal workings of wet Low Intensity Magnetic Separators (LIMS) are poorly understood. In this work an Ultrasonic Velocity Profiling (UVP) technique for measuring material flow speed at varying depth. A measurement depth of just a couple of centimetres will greatly improve our understanding of the separation process.When applied to flows of high density mineral suspensions, similar to those in wet LIMS, UVP is unique in combining:• Non-intrusive measurements.• A single transceiver element is sufficient.• Relatively good spatial resolution.• Penetrates opaque suspensions.• Fast sampling rate.Here, flows are studied in a simple rectangular geometry (50x75 mm), using dilute magnetite suspensions; measurement through the whole depth of 50 mm is made with good accuracy. Velocity profiles are presented for different sensors at solids concentrations of 5 vol% solids.

Place, publisher, year, edition, pages
Luleå, 2013. 157-168 p.
Research subject
Mineral Processing; Signal Processing; Industrial Electronics
Identifiers
URN: urn:nbn:se:ltu:diva-38746Local ID: d3b3c134-a001-430f-8493-f9d361ea71ccOAI: oai:DiVA.org:ltu-38746DiVA: diva2:1012247
Conference
Conference in Minerals Engineering 2013 : 05/02/2013 - 06/02/2013
Projects
Wet LlMS - Measurements and models
Note
Godkänd; 2013; 20130208 (janste)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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Stener, JanCarlson, Johan E.Pålsson, BertilSand, Anders
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