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Applying traceability to grinding circuits by using Particle Texture Analysis (PTA)
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.
2008 (English)In: Proceedings of Communion 08: Falmouth, UK, June 17-20 2008, Minerals Engineering International , 2008Conference paper, Published paper (Refereed)
Abstract [en]

LKAB has started a new pelletizing plant at Malmberget, where the raw material will be a mix of ores from Kiruna and Malmberget. The new plant necessitated an investment in a new grinding section in the concentrator. As usual, the new section has larger mills. It also lacks the wet cobbing stage present in the old sections.Comparing the results from the new section with the old sections show that they give similar results. There are slight variations; the older mills produce a steeper final particle size distribution. Also, it appears that the new mills are more efficient, since they have higher calculated grindability indices.To better understand the differences between the sections, and the process implications of the new grinding section, a combination of Particle Texture Analysis (PTA) and the statistical method Multivariate Analysis (MVA) is used. It shows that it is possible to identify and follow systematic changes in the particle morphology of the mill products. Also, that there are differences between the old and new grinding sections.

Place, publisher, year, edition, pages
Minerals Engineering International , 2008.
National Category
Metallurgy and Metallic Materials
Research subject
Mineral Processing
Identifiers
URN: urn:nbn:se:ltu:diva-33229Local ID: 808f95c0-b195-11dd-9c9d-000ea68e967bOAI: oai:DiVA.org:ltu-33229DiVA: diva2:1006466
Conference
International Comminution Conference : 17/06/2008 - 20/06/2008
Note
Godkänd; 2008; 20081113 (cira)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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