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Metallurgist
Published in: Metallurgist 1-2/2017

20-05-2017

Correlation of Metallized Pellet Decarburization, Heating, and Melting in an Arc Furnace

Author: E. E. Merker

Published in: Metallurgist | Issue 1-2/2017

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Abstract

Features are considered for steel smelting in an electric furnace based on analyzing the correlation of metallized pellet decarburization and melting. A method is developed and proposed for controlling the metallized pellet charging regime into and electric furnace bath through hollow electrodes with observation of synchronous performance of melting and loose material (pellets, lime, etc.) charging rate into the hightemperature zone beneath electric arcs. It is established that with supply of pellets into the space below electrodes taking account of intensification of metal decarburization and heating by means of an oxygenfuel burner technical, economic, and production energy indices are improved.
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Footnotes
1
E. E. Merker et al., Patent 2360009 RF, IPC С21С5/52, “Steel electric melting method,” subm. 09.07.2005, publ. 06.29.2009; E. E. Merker et al., Patent 2385952 RF, IPC С21С5/52, “Method for controlling arc furnace electric regime,” subm. 09.07.2005, publ. 04.10.2010.
 
Literature
1.
Yu. A. Gudim and I. Yu. Zinurov, “Methods for intensifying melting in arc furnaces,” Elektrometallurgiya, No. 9, 2–6 (2005).
2.
A. Yu. Kiselev, I. Yu. Zinurov, D. N. Makarov, et al., “Efficiency of using gas-oxygen burners in contemporary arc steel smelting furnaces,” Metallurg, No. 10, 60–62 (2006).
3.
I. V. Derevyanchenko, “Improvement of energy saving conditions of electric steel smelting production,” Stal, No. 1, 45–50 (2005).
4.
E. E. Merker, E. A. Chermenev, and V. A. Stepanov, “Energy saving regime for electric melting of metallized pellets in an arc furnace bath,” Elektrometallurgiya, No. 2, 2–7 (2015).
5.
S. N. Paderin and E. P. Paderin, Thermodynamics and calculation of thorough steel decarburization,” Izv. Vyssh. Uchebn. Zaved., Chern. Met., No. 10,19–24 (2005).
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V. V. Koptsev, O. V. Kazakov, and V. N. Gorbulin, “Physical modeling of burner unit nozzle with a central body aerodynamics,” Metallurg, No. 8, 81–82 (2007).
7.
E. E. Merker and E. A. Chermenev, “Mathematical model of metal decarburization during electric melting or iron ore pellets in an arc furnace,” Stal, No. 3, 28–33 (2014).
8.
S. N. Paderin, P. S. Paderin, and I. V. Kuz’min, “Thermodynamic modeling of oxidation processes during steel decarburization,” Stal, No. 5, 6–11 (2003).
Metadata
Title
Correlation of Metallized Pellet Decarburization, Heating, and Melting in an Arc Furnace
Author
E. E. Merker
Publication date
20-05-2017
Publisher
Springer US
Published in
Metallurgist / Issue 1-2/2017
Print ISSN: 0026-0894
Electronic ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-017-0465-1

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