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Short-term Lining T...
Short-term Lining Temperature Changes during Tapping in a Blast Furnace
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- Swartling, Maria (author)
- KTH,Tillämpad processmetallurgi
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Sundelin, B. (author)
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- Tilliander, Anders (author)
- KTH,Tillämpad processmetallurgi
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- Jönsson, Pär (author)
- KTH,Tillämpad processmetallurgi
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(creator_code:org_t)
- 2010-08-20
- 2010
- English.
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In: Steel Research International. - : Wiley. - 1611-3683. ; 81:9, s. 724-734
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The following paper presents a three-dimensional heat transfer model of the blast furnace hearth. The model has been developed with the objective of studying the short term changes in lining temperature during regular tappings. It is based on the actual conditions of Blast Furnace No. 2 at SSAB Oxelosund in Sweden. The model was evaluated and analysed using thermocouple data from the operating furnace. The study showed that a layer of tap clay around the tap hole had a significant effect on the heat transfer by reducing the heat variations in the lining. More specifically, a layer of 10-15 cm gave the best correlation between calculated and thermocouple data. A simulation was performed where the melt temperature and the tap cycle duration was based on process data from the operating furnace. Moreover, the size of the area subjected to changes due to the regular tappings was defined. It was found to be the region within an angle of 13 degrees from the tap hole, 0.9 m above and 0.8 m below the tap hole.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Keyword
- Blast furnace
- mathematical model
- heat transfer
- taphole
- tap cycles
- tap clay
- Metallurgical process engineering
- Metallurgisk processteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
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