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 ›› 2014, Vol. 35 ›› Issue (5): 34-36.

• 工艺技术 • 上一篇    下一篇

100 t 顶吹氧气转炉石灰石造渣炼钢技术的分析和工艺实践

秦登平,杨建平,危尚好,张建师,孙剑光,刘金旭   

  1. 首秦金属材料有限公司,秦皇岛 066326
  • 收稿日期:2014-04-28 出版日期:2014-10-01 发布日期:2022-09-01
  • 作者简介:秦登平(1978-),男,硕士(北京科技大学),高级工程师,西安建筑科技大学(本科)毕业,转炉炼钢工艺研究。

Analysis and Process Practice on Steelmaking Technology of 100 t Top-Blown Oxygen Converter by Limestone for Slag Making

Qin Dengping , Yang Jianping , Wei Shanghao , Zhang Jianshi , Sun Jianguang , Liu Jinxu   

  1. Shouqin Metal Materials Co Ltd, Qinhuangdao 066326
  • Received:2014-04-28 Published:2014-10-01 Online:2022-09-01

摘要: 通过石灰石造渣前期成渣机理的分析和转炉热平衡计算得出石灰石消耗为6.0t/炉时,需增加铁水消耗2.1t/炉,减少2.5t/炉废钢消耗,可保证石灰石炼钢终点温度和石灰炼钢终点温度一致。生产试验得出,石灰石造渣炼钢转炉终点碱度(3.3),终点温度(1662℃)、终点[C](0.081%)、[P](0.016%)、命中率(90%)和普通石灰造渣炼钢工艺一致,但降低转炉炉料成本10.4元/t钢,取得良好的经济和社会效益。

关键词: 100 t 顶吹氧气转炉, 石灰石, 造渣, 终点控制, 成本

Abstract: With analysis on the mechanism of early stages slag making by limestone and calculation of heat balance in converter, it is obtained that as controlling limestone consumption 6.0 t/heat, the hot metal consumption must increase by 2.1 t/heat and the scrap consumption shall decrease by 2.5 t/heat, it may insure that the end temperature by limestone steelmaking process is the same by lime steelmaking process. Pilot production results show that with limestone slag making technology the converter steelmaking end basicity (3.3) , end temperature (1662 °C ) , end [C] (0.081%), end [P] (0.016% ) and end percentage of hits (90% ) showing no difference from that with conventional lime slag making technology. But with limestone slag making technology the cost of converter stock decreases by 10. 4 yuan /t steel to get better economic and social benefit.

Key words: 100 t Top-Blown Oxygen Converter, Limestone, Slag Making, End Control, Cost