Critical Carbon Concentration and Excessively High Bath Temperature for Smelting Ferrochromium in the Argon-Oxygen Furnace

Abstract:

Some problems have seriously affected the implementation of smelting ferrochromium in the argon-oxygen furnace. This paper discussed reducing chromium loss and controlling excessively high bath temperature by thermodynamic analysis. The results show that the process is divided into two stages and the critical carbon concentration of its switchover point is controlled in the range of 1.5%-2% to reduce chromium loss; dynamic control of oxygen and argon supply by theoretical calculation and AI(Artificial Intelligence) technology and carbon dioxide blown by a lance with double channel as coolant instead of steel scrap and chrome ore can flexibly control furnace temperature.

• Periodical: Applied Mechanics and Materials (Volumes 423-426)
• Pages: 202-206
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.423-426.202
• Online since: September 2013
• Authors: Ming Rong Han*, Long Qiang Huang, Bi Jia
• Keywords: Bath Temperature, Critical Carbon Concentration, New Method, Smelting Ferrochromium

References

[1] Zhenhai Jia: FERRO-ALLOYS, Vo181, 11-16(2005).

[2] http: /wenku. baidu. com/view/4dd6855f312b3169a451a404. html.

[3] Huang Xihu. Iron and Steel Metallurgy Principle(the third edition). Metallurgical Industry Press, Beijing (in Chinese, 2006).

[4] Mingrong Han, Zhengde Ren, Lianying Wen. Sichuan Metallurgy, No1, 15-18(in Chinese, 2001).

[5] Hu Lingbiao. FERRO-ALLOYS, Vo6, 1-8(1992).

[6] Liu Ying, Xiaoqin Zhong and Zhihao Qu. Journal of Shanghai Institute of Technology: Natural Science, 7(2): 87-90(2007).

[7] Dongxing Gai. Steelmaking, (28): 40-58(in Chinese, 2012).