ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2008, Vol. 29 ›› Issue (6): 44-46.

• 工艺技术 • 上一篇    下一篇

电弧炉超音速集束氧枪吹炼的钢水留碳操作实践

秦军   

  1. 宝钢集团新噩八一钢铁股份公司第二炼钢厂,乌鲁木齐830022
  • 收稿日期:2008-05-22 出版日期:2008-12-01 发布日期:2022-12-08
  • 作者简介:秦 军(1974-),男,炼钢工程师,1995年重庆大学毕业,从事钢铁冶金工艺生产研究。

Catch Carbon Practice of Arc Furnace Ultrasonic Coherent Jet Oxygen Lance Blowing Liquid Steel

Qin Jun   

  1. No2 Steelmaking Plant, Xinjiang Bayi Co Ltd, Baosteel Group, Wulumuqi 830022
  • Received:2008-05-22 Published:2008-12-01 Online:2022-12-08

摘要: 建立了70 t电弧炉冶炼中高碳钢的留碳操作的数学模型。按照出钢时钢水碳含量的要求,基于入炉废钢和铁水成分,控制超音速集束氧枪的吹炼参数,合理使用炉门自耗式碳氧枪和采用相应的炉渣碱度,以实现目标留碳操作。0.55%C钢的冶炼实践表明,当热装铁水30%时,电弧炉终点[C]为0.40%~0.65%的炉次≥85%,显著降低了冶炼成本。

关键词: 电弧炉, 热装铁水, 超音速集束氧枪, 留碳操作

Abstract: Mathematic model for catch carbon practice of steelmaking medium and high carbon steel in a 70 t arc furnace has been established. According to the requirement of carbon content in liquid steel at tapping, based on the chemical compositions of charged scrap and hot metal, the blowing parameters of ultrasonic coherent jet oxygen lance are controlled suitably to use consumable oxygen-carbon lance at door and the available slag basicity is used to carry out aim catch carbon practice. The steelmaking practice of 0. 55% C steel showed that with charged 30% hot metal, the proportion of heats with arc furnace end point [C] 0. 40% ~ 0. 65% was N85% to obviously decrease steel melting cost.