Mathematical Modeling of the Melting Rate of Metallic Particles in the Electric Arc Furnace

Numerical modeling was used to study the capability of postcombustion in an electric arc furnace (EAF) equipped with virtual lance burners. The CO flow rate at the molten bath surface was estimated using the off-gas data obtained close to the outlet of an EAF. Then, the effect of the secondary oxygen flow rate on postcombustion was studied. The results show a CO flow rate of 0.6 kg·s−1 and 0.8 kg·s−1 for operation modes of burner and burner + lancing. Increase of the secondary oxygen flow rates of 60% and 70% result in 17% and 7% increase in the postcombustion ratio (PCR) for the burner and burner lancing modes, respectively.

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Mathematical modeling of composite filter for power quality improvement of Electric Arc Furnace distribution network

2014 IEEE 6th India International Conference on Power Electronics (IICPE) ◽

10.1109/iicpe.2014.7115762 ◽

2014 ◽

Author(s):

Deepak C. Bhonsle ◽

Ramesh B. Kelkar

Keyword(s):

Mathematical Modeling ◽

Quality Improvement ◽

Power Quality ◽

Distribution Network ◽

Electric Arc Furnace ◽

Electric Arc ◽

Arc Furnace ◽

Power Quality Improvement ◽

Composite Filter

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Mathematical Modeling and Experimental Validation of an Electric Arc Furnace

ISIJ International ◽

10.2355/isijinternational.51.382 ◽

2011 ◽

Vol 51 (3) ◽

pp. 382-391 ◽

Cited By ~ 25

Author(s):

Vito Logar ◽

Dejan Dovžan ◽

Igor Škrjanc

Keyword(s):

Mathematical Modeling ◽

Experimental Validation ◽

Electric Arc Furnace ◽

Electric Arc ◽

Arc Furnace

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Analytical Electron Microscopy Characterization of Electric Arc Furnace Dust

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100097326 ◽

1981 ◽

Vol 39 ◽

pp. 134-135

Author(s):

J. R. Porter ◽

J. I. Goldstein ◽

D. B. Williams

Keyword(s):

Electron Microscopy ◽

Analytical Electron Microscopy ◽

Electric Arc Furnace ◽

Electric Arc ◽

Dust Particles ◽

Particle Analysis ◽

Arc Furnace ◽

Analytical Electron ◽

Residual Elements ◽

Industry Practice

Alloy scrap metal is increasingly being used in electric arc furnace (EAF) steelmaking and the alloying elements are also found in the resulting dust. A comprehensive characterization program of EAF dust has been undertaken in collaboration with the steel industry and AISI. Samples have been collected from the furnaces of 28 steel companies representing the broad spectrum of industry practice. The program aims to develop an understanding of the mechanisms of formation so that procedures to recover residual elements or recycle the dust can be established. The multi-phase, multi-component dust particles are amenable to individual particle analysis using modern analytical electron microscopy (AEM) methods.Particles are ultrasonically dispersed and subsequently supported on carbon coated formvar films on berylium grids for microscopy. The specimens require careful treatment to prevent agglomeration during preparation which occurs as a result of the combined effects of the fine particle size and particle magnetism. A number of approaches to inhibit agglomeration are currently being evaluated including dispersal in easily sublimable organic solids and size fractioning by centrifugation.

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