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A physical modelling study to determine the influence of slag on the fluid flow in the AOD converter process
KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap.
KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap.ORCID-id: 0000-0002-1203-0181
KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap.
KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap.ORCID-id: 0000-0003-1919-9964
Vise andre og tillknytning
2018 (engelsk)Inngår i: Ironmaking & steelmaking, ISSN 0301-9233, E-ISSN 1743-2812, Vol. 45, nr 10, s. 944-950Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A 1:4.6 scale physical model of a production argon oxygen decarburisation (AOD) converter was used to study the influence of top slag on the AOD process. Specifically, the gas penetration depth, fluid flow and slag behaviour under different nozzle diameters, nozzle numbers and gas flow rates were studied. The results show that the relative gas penetration depth generally increases linearly with an increased gas flow rate and a decreased nozzle size. Furthermore, the slag thickness increases linearly with an increased gas flow rate. In addition, the open-eye size was found to increase exponentially with an increased gas flow rate. Overall, three kinds of fluid flow patterns were found in the experiments: (i) a counter-clockwise rotation, (ii) a clockwise rotation and (iii) a double circulation with the plume in the middle of the converter. A counter-clockwise rotation was most common for the current experimental conditions.

sted, utgiver, år, opplag, sider
Taylor & Francis, 2018. Vol. 45, nr 10, s. 944-950
Emneord [en]
Physical modelling, AOD, slag, side-gas injection, penetration depth
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-240764DOI: 10.1080/03019233.2017.1415012ISI: 000453823900014Scopus ID: 2-s2.0-85039167810OAI: oai:DiVA.org:kth-240764DiVA, id: diva2:1275591
Merknad

QC 20190107

Tilgjengelig fra: 2019-01-07 Laget: 2019-01-07 Sist oppdatert: 2019-01-07bibliografisk kontrollert

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Ni, PeiyuanTilliander, AndersJönsson, Pär G.

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