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Optimisation of the slag formation in a blast furnace charged with 100% pellets
Luleå tekniska universitet.
2001 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

This work is based on experiences from industrial blast furnaces. Process irregularities when testing self-fluxed pellets Process disturbances when charging increased proportions of coarse pellets Laboratory tests to evaluate the effect of basic fluxes on the slag formation in the bosh and in the raceway have been carried out. Pilot scale tests have been performed to verify the effect of coarse pellets. The effect of reduction degree and the reduction behaviour on the slag formation and blast furnace performance have been evaluated It was found that decreased degree of reduction of pellets or lowly reduced core of coarse pellets decrease the melting temperature and increase the softening and melting temperature interval. Basic fluxes have a negative effect on the melting properties of the self-fluxed pellets and a positive effect on the melting properties of the olivine pellets. Basic fluxes have a positive effect on the melting properties of tuyere slags.

Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 2001. , 42 p.
Series
Licentiate thesis / Luleå University of Technology, ISSN 1402-1757 ; 2001:44
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-18685Local ID: 9d05f560-d194-11db-a0b9-000ea68e967bOAI: oai:DiVA.org:ltu-18685DiVA: diva2:991696
Note
Godkänd; 2001; 20070313 (ysko)Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved

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