Energy efficient solutions for EAF steelmaking

• Autorzy: Timoshenko S. N. , Stovpchenko A. P. , Kostetski Yu. V. , Gubinski M. V.

Identyfikatory

DOI

10.5604/01.3001.0012.5867

• Języki publikacji: EN

Abstrakty

EN

Purpose: To review an advanced solutions to improve the energy efficiency of electric arc furnace (EAF), and presentation of own new efficient low-cost solutions with regard to needs of electrometallurgical complex of Ukraine. Design/methodology/approach: Numerical simulation and industrial experiment is used. The patterns and parameters of heat and mass transfer processes, hydromechanics in a steelmaking bath of an arc furnace, thermal operation of water-cooled elements and gas dynamics in EAF workspace, are the subject scope of the paper. Findings: Energy-efficient solutions for steelmaking: bath geometry, design features of water-cooled elements (WCE), distributed aspiration system, and the mid-temperature scrap preheating. Research limitations/implications: Influence of the bath depth on heat and mass transfer and heat loss by radiation; influence of the spatial structure of WCE on heat loss by radiation; the dispersion of aspiration on the amount of fugitive emissions through electrode gaps are established. Practical implications: Grounds to improve EAF melting space, water-cooled elements, aspiration system and utilization of energy loss are obtained. Use of the set of solutions in 120-ton EAF can reduce energy consumption by 56-68 kWh/ton. Originality/value: The new concepts of deep steelmaking bath, WCE with spatial structure and system of dispersed aspiration of the EAF are elaborated.

Słowa kluczowe

EN

electric arc furnace energy efficiency; deep bath; WCE with spatial structure; system of dispersed aspiration; mid-temperature preheating of scrap

PL

elektryczny piec łukowy; wydajność energetyczna; elementy chłodzone wodą; struktura przestrzenna; podgrzewanie złomu

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2018
• Tom: Vol. 88, nr 1
• Strony: 18--24
• Opis fizyczny: Bibliogr. 22 poz., rys., wykr.

Twórcy

autor

Timoshenko S. N.

• Donetsk National Technical University, 2 Shybankova Square, Pokrovsk, 85300, Ukraine

autor

Stovpchenko A. P.

• Institute of Electric Welding them. E.O. Patona of the NAS of Ukraine, 11 Kazimira Malevicha Str., 03150, Kyiv, Ukraine
• “ELMET-ROLL” Private Co, P.O.Box 259, Kyiv, 03150, Ukraine

autor

Kostetski Yu. V.

• Institute of Electric Welding them. E.O. Patona of the NAS of Ukraine, 11 Kazimira Malevicha Str., 03150, Kyiv, Ukraine

autor

Gubinski M. V.

• National Metallurgical Academy of Ukraine, 4 Gagarina str., Dnipro, 49600, Ukraine

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).