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Simulation of the S...
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Zhang, ZhiKTH,Tillämpad processmetallurgi
(author)
Simulation of the Steel Sampling Process
- Article/chapterEnglish2010
Publisher, publication year, extent ...
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Iron and Steel Institute of Japan,2010
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:kth-24416
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-24416URI
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https://doi.org/10.2355/isijinternational.50.1746DOI
Supplementary language notes
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Language:English
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Summary in:English
Part of subdatabase
Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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QC 20100907
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This work presents a theoretical study of the liquid steel sampling process in the iron &steel industry. As a continuous research with the previous work, the initial solidification duringthe sampler filling was taken into account. The liquid steel sampling procedure, which ismainly used to monitor whether the steel is at the correct composition during the steelmaking,can also be applied to examine the inclusion size characteristics. Focus was on the influence ofthe initial solidification on the inclusion concentrations. The whole sampling system wasmodeled in order to obtain a simulation result which is realistic from an industrial perspective.Argon-protected sampling was the focus in the simulations. A discrete phase model was usedto simulate the movement of inclusions in the liquid steel. Inclusions were injected from theinlet pin of the lollipop-shaped sampler. Some selected different sized primary inclusions thatexist in the ladles during a steelmaking process were simulated. The conclusion from this workis that turbulent flow patterns within the sampler mold will change because of the spaceshrinkage due to the solidification. This, in turn, will also affect the inclusion dispersions. Itconcludes that the preferred position for detecting inclusions is the bottom region, except thebottom surface. It estimates that the mean deviation between the calculated result and the initialconcentration for all inclusions in these regions is within 10%.
Subject headings and genre
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liquid steel sampling
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sampler
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solidification
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flow fields
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CFD
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mathematical modeling
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Wilcox k-ω turbulence model
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inclusion concentration
Added entries (persons, corporate bodies, meetings, titles ...)
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Tilliander, AndersKTH,Tillämpad processmetallurgi(Swepub:kth)u1zaf6ay
(author)
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Karasev, AndreyKTH,Tillämpad processmetallurgi(Swepub:kth)u1axrmdn
(author)
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Jönsson, PärKTH,Tillämpad processmetallurgi(Swepub:kth)u118w09b
(author)
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KTHTillämpad processmetallurgi
(creator_code:org_t)
Related titles
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In:ISIJ International: Iron and Steel Institute of Japan50:120915-15591347-5460
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