Abstract
A hydraulic model with a similarity ratio of 1:4 was used to simulate the blowing parameters of 65t electric arc furnace (EAF). The molten bath stirring effects of different bottom blowing arrangements and flow rates under different combined blowing conditions were studied. On this basis, orthogonal experiments were designed to study the effects of bottom blowing rate, side blowing rate, and bottom blowing arrangement on the mixing time of molten bath. The results showed that the bottom blowing arrangement has little effect on the mixing time of molten pool. Under the condition of combined blowing, the degree of influencing factors on mixing time from big to small was the side blowing rate, bottom blowing rate, and bottom blowing arrangement. The industrial experiment showed that, compared with traditional process, the combined blowing process can increase the decarbonization rate and reduce the consumption of iron and steel materials.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Wei GS, Zhu R, Dong K, Ma GH, Cheng T (2016) Research and analysis on the physical and chemical properties of molten bath with bottom-blowing in EAF steelmaking process. Metall Mater Trans B 47B:3066–79
Liu FH, Zhu R, Dong K, Bao X, Fan SL (2015) Simulation and application of bottom-blowing in electrical arc furnace steelmaking process. ISIJ Int 55(11):2365–2373
He CL, Zhu R, Dong K, Qiu YQ, Sun KM, Jiang GL (2011) Three-phase numerical simulation of oxygen penetration and decarburisation in EAF using injection system. Ironmaking Steelmaking 38(4):291–296
Dong K, Zhu R, Liu WJ (2011) Bottom-blown stirring technology application in consteel EAF. Adv Mater Res 36:639–643
Schade CT, Schmitt R (1991) Evaluation of bottom stirring in lukens’ electric arc furnace. Iron Steelm 18:23–28
Li LF, Jiang MF, Duan ZY (1996) Study on bottom blowing stirring characteristics of electric arc furnace. Steelmaking 12(2):49–52
Li BK (2000) Fluid flow and mixing process in a bottom stirring electrical arc furnace with multi-plug. ISIJ Int 40(9):863–869
Zhu MY, Inomoto T, Sawada I, Hsiao TC (1995) Fluid flow and mixing phenomena in the ladle stirred by argon through multi-tuyere. ISIJ Int 35(5):472–479
Singh V, Kumar J, Bhanu C, Ajmani SK, Dash SK (2007) Optimisation of the bottom tuyeres configuration for the BOF vessel using physical and mathematical modelling. ISIJ Int 47(11):1605–1612
Zhou XB, Ersson M, Zhong LC, Yu JK, Jönsson P (2014) Mathematical and physical simulation of a top blown converter. Steel Res Int 85(2):273–81
Luomala MJ, Fabritius MJ, Härkki JJ (2004) The effect of bottom nozzle configuration on the bath behaviour in the BOF. ISIJ Int 44(5):809–16
Acknowledgements
The work was supported by the National Natural Science Foundation of China (Nos. 51734003 and 51604022).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 The Minerals, Metals & Materials Society
About this paper
Cite this paper
Wu, X., Zhu, R., Wei, G., Dong, K., Yang, L. (2020). Hydraulic Model Study of Combined Blowing in 65t Electric Arc Furnace (EAF). In: Peng, Z., et al. 11th International Symposium on High-Temperature Metallurgical Processing. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-36540-0_1
Download citation
DOI: https://doi.org/10.1007/978-3-030-36540-0_1
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-36539-4
Online ISBN: 978-3-030-36540-0
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)