Change search
ReferencesLink to record
Permanent link

Direct link
Physical behavior of slag in a 107-tonne ladle: production scale experiments and theoretical simulation
Luleå Tekniska Universitet.
MEFOS, Luleå, Sweden.
2003 (English)In: Scandinavian journal of metallurgy, ISSN 0371-0459, Vol. 32, no 3, 113-122 p.Article in journal (Refereed) Published
Abstract [en]

The combined movement of steel, slag and gas in a ladle has been studied with the aid of a multiphase CFD model and measurements in production scale. Comparison of model data and measurements in a production ladle has been carried out for three cases: The ‘open eye’ created during gas stirring, the mixing of top slag during gas stirring in the CAS-OB and finally for studying sculling phenomena. It was found that the simulated ‘open eye’ appears as a central slag-free zone with a surrounding ‘splash zone’ characterized by the fact that steel is found on top of the slag. The simulated ‘open eye’ corresponds to the ‘splash zone’. The predicted gas stirring in CAS-OB gives an efficient stirring of the top slag also. This was confirmed by noting that slag samples taken from the ladle seem to be representative of the mean slag composition. Finally, streamlines during stirring have been compared with sculling and wear observed in the production ladle. Good agreement was obtained.

Place, publisher, year, edition, pages
2003. Vol. 32, no 3, 113-122 p.
Keyword [en]
CAS-OB process, CFD models, ladle metallurgy, ladle slag, numerical simulation, sculling, slag flow, slag sampling, 'open eye'
National Category
Metallurgy and Metallic Materials
URN: urn:nbn:se:kth:diva-118698DOI: 10.1034/j.1600-0692.2003.10557.xOAI: diva2:607476


Available from: 2013-02-23 Created: 2013-02-23 Last updated: 2013-02-28Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Jonsson, Lage
In the same journal
Scandinavian journal of metallurgy
Metallurgy and Metallic Materials

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 14 hits
ReferencesLink to record
Permanent link

Direct link