High Efficient Blowing Technique for Large and Medium Converters

• Published in: Journal of iron and steel research, international Vol. 17; no. 2; pp. 1 - 5
• Main Authors: JIANG, Xiao-fang, YANG, Wen-yuan, WANG, Ming-lin, CHEN, Yuan-ping, GAN, Yong
• Format: Journal Article
• Language: English
• Published: Singapore Elsevier Ltd 01.02.2010; Springer Singapore
• Subjects: Applied and Technical Physics; Blowing; converter; efficient dephosphorization; Engineering; Forming; Iron and steel industry; Iron and steel making; Machines; Manufacturing; Materials Engineering; Materials Science; Metallic Materials; oxygen blowing time; oxygen supply intensity; Physical Chemistry; Processes; Slags; Steel converters; Steel making; Steels; 供氧强度; 技术包; 技术开发; 氧气供应; 炼钢车间; 转换器; 钢铁研究总院; oxygen supply intensity; oxygen blowing time; efficient dephosphorization; converter
• ISSN: 1006-706X; 2210-3988
• DOI: 10.1016/S1006-706X(10)60049-0

The high efficient blowing technique includes increasing oxygen supply intensity and optimizing slag forming. The oxygen supply intensity on 300 t converters of No. 1 steelmaking shop at Baosteel reaches 3.83 m^3/（t · min）, and at Taiyuan Steel, Lianyuan Steel, Pingxiang Steel and other steel plants, the oxygen supply intensity on medium converters is in the range of 4.0--4.4m^3/（t · min）. The productivity of converter can be increased by 8% -- 15% with adopting this technique. The whole technique, including design and manufacture of lance nozzle with reasonable pacnolontenue of outlets, technique of oxygen supply and slag forming, has been developed by CISRI to meet the need of technique transfer.