Control of the grain size distribution of the raw material mixture in the production of iron sinter

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dc.contributor.author Lwamba, E.
dc.contributor.author Garbers-Craig, Andrie Mariana
dc.date.accessioned 2009-05-11T13:04:47Z
dc.date.available 2009-05-11T13:04:47Z
dc.date.issued 2008-05
dc.description.abstract The aim of this study was to examine the effect of grain size distribution control of the raw material mixture on the permeability of the green sinter bed and the properties of the produced sinter. This was achieved by evaluating the granulation characteristics of the sinter mixture (moisture content, granulation time and mean granule diameter) in terms of its green bed permeability, and evaluating the productivity of the sinter bed, the coke rate, tumble index (TI), abrasion index (AI), reduction disintegration index (RDI) and reducibility (RI) of the produced sinter. The raw sinter mixtures contained combinations of Thabazimbi iron ore, Sishen iron ore, coke, lime and return fines. The grain size distributions were controlled by removing the –0.5 mm size fractions of the return fines and coke, and the –1 mm size fraction of lime. Of the examined mixtures, a mixture of 20 mass% Thabazimbi iron ore, 80 mass% Sishen iron ore and fluxes where the coke, lime and return fines were all sized had the highest granulation effectiveness and permeability. The sintering properties of the mixtures in which the grain size distributions were controlled, were very similar for all the mixtures, but superior to the base case mixture in which the grain size distribution was not controlled. en_US
dc.identifier.citation Lwamba, E & Garbers-Craig, AM 2008, ‘Control of the grain size distribution of the raw material mixture in the production of iron sinter’, The Journal of the Southern African Institute of Mining and Metallurgy, vol. 108, no. 5, pp. 293-300. [http://www.saimm.co.za/] en_US
dc.identifier.issn 0038-223X
dc.identifier.uri http://hdl.handle.net/2263/10012
dc.language.iso en en_US
dc.publisher Southern African Institute of Mining and Metallurgy en_US
dc.rights Southern African Institute of Mining and Metallurgy en_US
dc.subject Distribution control en_US
dc.subject Gas flow distribution en_US
dc.subject.lcsh Sinter (Metallurgy)
dc.subject.lcsh Iron -- Metallurgy
dc.subject.lcsh Sintering
dc.subject.lcsh Gas flow
dc.subject.lcsh Permeability
dc.title Control of the grain size distribution of the raw material mixture in the production of iron sinter en_US
dc.type Article en_US


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