Mechanism Study of the Blocking of Ladle Well Due to Sintering of Filler Sand
2015 (English)In: Steel Research International, ISSN 1611-3683, E-ISSN 1869-344XArticle in journal (Refereed) Published
The present work is aimed at a mechanism study of blocking of ladle well by filler sand. Laboratory experiments are carried out using two different chromite-based filler sands. The interaction between the liquid steel and the sand is also studied by using steels containing different contents of Mn and Al. The reaction between the silica phase and the chromite phase is found to be the main mechanism for the sintering of sand. The reaction results in a liquid oxide phase, which becomes the binding phase between the solid oxide grains. The amount of silica phase and its grain size are found to have great impact on the formation of the liquid oxide phase. Faster formation of the liquid oxide phase leads to more serious sintering of the sand. It is found that liquid steel can hardly infiltrate into sand. On the other hand, the presence of steel considerably increases the amount of liquid phase and enhances the sintering of the sand.
Place, publisher, year, edition, pages
Wiley-VCH Verlagsgesellschaft, 2015.
Filler sand, Ladle free opening, Liquid steel, Sintering, Chromite, Chromite deposits, Fillers, Ladles, Liquids, Manganese, Sand, Silica, Binding phase, Chromite phase, Laboratory experiments, Liquid oxides, Liquid Phase, Liquid steels, Mechanism studies, Solid oxide
IdentifiersURN: urn:nbn:se:kth:diva-176191DOI: 10.1002/srin.201500118ScopusID: 2-s2.0-84933544611OAI: oai:DiVA.org:kth-176191DiVA: diva2:873975
QC 201511252015-11-252015-11-022016-08-16Bibliographically approved