Process simulations in mineralogy-based geometallurgy of iron ores
2021 (engelsk)Inngår i: Mineral Processing and Extractive Metallurgy: Transactions of the Institute of Mining and Metallurgy, ISSN 2572-6641, E-ISSN 2572-665X, Vol. 130, nr 1, s. 25-30Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]
Mineral processing simulation models can be classified based on the level that feed stream to the plant and unit models are described. The levels of modelling in this context are: bulk, mineral or element by size, and particle. Particle level modelling and simulation utilises liberation data in the feed stream and is more sensitive to the variations in ore quality, specifically ore texture. In this paper, simulations for two texturally different magnetite ores are demonstrated at different modelling levels. The model parameters were calibrated for current run-of-mine ore and then in the simulation applied directly to the other ore. For the second ore, the simulation results vary between the different levels. This is because, at the bulk level, the model assumes minerals do not change their behaviour if ore texture or grinding fineness are changed. At the mineral by size level, the assumption is that minerals behave identically in each size fraction even if the ore texture changes. At the particle level, the assumption is that similar particles behave in the same way. The particle level approach gives results that are more realistic and it can be used in optimisation, thus finding the most optimal processing way for different geometallurgical domains.
sted, utgiver, år, opplag, sider
Taylor & Francis, 2021. Vol. 130, nr 1, s. 25-30
HSV kategori
Forskningsprogram
Mineralteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-70357DOI: 10.1080/25726641.2018.1507072ISI: 000621217800004Scopus ID: 2-s2.0-85051936925OAI: oai:DiVA.org:ltu-70357DiVA, id: diva2:1238416
Merknad
Validerad;2021;Nivå 2;2021-03-08 (johcin)
2018-08-132018-08-132023-12-19bibliografisk kontrollert