Abstract:In order to explore the influence of various applied electric fields and electrodes on the unpolluted deoxidization of molten steel, a new deoxidization system for commercial experiment and numerical simulation has been designed and fabricated based on the mechanism of electrochemical reaction. And the unpolluted deoxidization technique has been studied when a DC field was applied between the metal and slag. The results show that electrochemical deoxidization can be carried out effectively with the application of electric field at the interface between metal and slag. The maximum deoxidization rate could reach 0.001 86%/min. Both increasing the mass transfer coefficient of oxygen ions and the reaction area of the metal and the slag could increase the oxygen ion current between the steel and slag,so the deoxidization rate could be improved. This technology is new kind of green and environmental steel refining process,which has broad application prospects.
收稿日期: 2016-01-12
出版日期: 2016-08-29
引用本文:
贾吉祥,郭庆涛,廖相巍,李德刚,倪翀奕,彭春霖. 外加电场作用下钢液无污染脱氧工艺[J]. 钢铁, 2016, 51(9): 46-50.
JIA Ji-xiang,GUO Qing-tao,LIAO Xiang-wei,LI De-gang,NI Chong-yi,PENG Chun-lin. Unpolluted deoxidization technology with applied electric field between metal and slag. Iron and Steel, 2016, 51(9): 46-50.
Shi Yuan, Uday Pal, Kuo C. Chou. Deoxidization of molten metals by short circuiting yttria-stabilized zirconia electrolyte cell[J]. Electrochem. soc,1994, 141(2):467-474.
Shi Yuan, Uday Pal, Kuo C. Chou. Deoxidization of molten metals by short circuiting yttria-stabilized zirconia electrolyte cell[J]. Electrochem. soc,1994, 141(2):467-474.
[4]
M. Iwase,M. Tanida,A. Mclean,T. Mori. Electronically driven transport of oxygen from liquid iron to CO+CO2 gas mixtures through stabilized zirconia[J]. Metal. Trans. B, 1981, 12B(9):517-524.
M. Iwase,M. Tanida,A. Mclean,T. Mori. Electronically driven transport of oxygen from liquid iron to CO+CO2 gas mixtures through stabilized zirconia[J]. Metal. Trans. B, 1981, 12B(9):517-524.
Lu X G, Ding W Z, Li F S, etal. Electrochemistry of oxygen iron transport in slag[J]. Transactions of Nonferrous Metals Society of China, 2002, 12(2):326-329.
Lu X G, Ding W Z, Li F S, etal. Electrochemistry of oxygen iron transport in slag[J]. Transactions of Nonferrous Metals Society of China, 2002, 12(2):326-329.