An Experimental and Numerical Study of the Heat Flow in the Blast Furnace Hearth
2008 (English)Licentiate thesis, comprehensive summary (Other academic)
This study has focused on determining the heat flows in a production blast furnace hearth. This part of the blast furnace is exposed to high temperatures. In order to increase the campaign length of the lining an improved knowledge of heat flows are necessary. Thus, it has been studied both experimentally and numerically by heat transfer modeling. Measurements of outer surface temperatures in the lower part of a production blast furnace were carried out. In the experimental study, relations were established between lining temperatures and outer surface temperatures. These relations were used as boundary conditions in a mathematical model, in which the temperature profiles in the hearth lining are calculated. The predictions show that the corner between the wall and the bottom is the most sensitive part of the hearth. Furthermore, the predictions show that no studied part of the lining had an inner temperature higher than the critical temperature 1150°C, where the iron melt can be in contact with the lining.
Place, publisher, year, edition, pages
Stockholm: KTH , 2008. , xii, 32 p.
Blast furnace, hearth, heat transfer, model, experimental, numerical
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-9922ISBN: 978-91-7415-201-2OAI: oai:DiVA.org:kth-9922DiVA: diva2:158747
2009-02-05, B2, Brinellvägen 23, Stockholm, 10:00 (English)
Saxén, Henrik, Professor
Jönsson, Pär, Professor
QC 201011242009-02-042009-02-042010-11-24Bibliographically approved
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