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 ›› 2010, Vol. 31 ›› Issue (5): 36-38.

• 工艺技术 • 上一篇    下一篇

70 t电弧炉应用热压块HBI冶炼的工艺实践

秦军   

  1. 宝钢集团新疆八一钢铁股份公司第二炼钢厂,乌鲁木齐 830022
  • 收稿日期:2010-04-02 出版日期:2010-10-01 发布日期:2022-11-11
  • 作者简介:秦军(1974-),男,高级工程师,1995年重庆大学毕业,炼钢和连铸研究

Practice for Steelmaking Process of a 70 t Arc furnace by Using Hot Briquette Iron

Qin Jun   

  1. No2 Steelmaking Plant, Xinjiang Bayi Steel and Iron Co Ltd, Baosteel Group, Wulumuqi 830022
  • Received:2010-04-02 Published:2010-10-01 Online:2022-11-11

摘要: 70 t电弧炉的炉料装入量为80~81 t,其中热直接还原铁热压块HBI为14.6~15.2 t,铁水23~27 t,其出钢量77~78 t,电耗316~324 kWh/t,氧耗29.7~33.0 m~3/t,冶炼周期48~54 min。生产实践表明,热压块是优质废钢的替代品,可促进电弧炉脱磷和脱碳反应,降低氧耗1.3~3.2 m3/t,但每增加1%热压块则增加电耗3.5kWh/t,所以炉料为全废钢时不宜配加热压块,当加入30%铁水和加入10%热压块时可以达到冶炼过程最优化。

关键词: 70 t电弧炉, 热压块, 电耗, 冶金质量

Abstract: Charged weight for the 70 t arc furnace is 80-81 t including direct reduction iron hot briquette (HBI) 14.6-15.2 t and hot metal 23-27 t, its tapping liquid amount is 77-78 t, electric power consumption 316 ~ 324 kWh/t, oxygen consumption 29.7-33. 0 m3/t and tap-to-tap time 48 ~54 min. Steelmaking practice shows that HBI is a substitute for quality scrap, it is available to improve dephosphorization and de-carbon reaction, decrease oxygen consumption 1.3-3.2 m3/t, but with increasing every 1% charge of HBI the electric power consumption increases 3. 5 kWh/t, therefore it is not suitable charging HBI only with scrap, as charging 30% hot metal and 10% HBI the steelmaking process is optimization.

Key words: 70 t Arc Furnace, HBI, Electric Power Consumption, Metallurgy Quality