弱脱氧钢水脱硫工艺研究

钢铁, 2008, 43(6): 22-0.

弱脱氧钢水脱硫工艺研究

1.1. 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室，湖北武汉 430081；2. 邯郸钢铁股份有限公司，河北邯郸056015；3. 武汉洪山海通耐火炉料有限公司，湖北武汉 430080

1.1. Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China

2.2. Handan Iron and Steel Co., Ltd., Handan 056015, Hebei, China

3.3. Wuhan Hongshan Refractory Mass Co., Ltd., Wuhan 430080, Hubei, China

关键词：弱脱氧钢水;脱硫;渣洗;LF精炼

Research on Desulphurizing Process for SoftKilled Molten Steel

XUE Zhengliang , HU Zhigang , YAN Xiaoping , YUAN Weike , LIU Yue , LIN Weiguo

Keywords： softkilled molten steel;desulphurization;slag infiltration;ladle furnace refining

结合工厂生产研究了弱脱氧条件下w(［Al］)＜0.005%，16MnR钢水快速脱硫工艺。研究表明弱脱氧钢水采用大渣量出钢渣洗和强搅拌LF精炼工艺可以实现快速脱硫。转炉出钢渣洗脱硫率分布在14.8%~59.1%，平均为35.7%；经过LF精炼，钢水硫含量全部符合钢种要求，其中w(［S］)＜0.015%的炉次占77%。成品硫质量分数分布在0.006%~0.016%，平均硫质量分数达到0.011%。

The fast desulphurization process for the softkilled molten steel 16MnR with acidsoluble aluminum less than 0.005% was researched with steel plant practice.The results indicated that the softkilled molten steel can be quickly desulphurized with strong slag infiltration during LD tapping and strong stirring in ladle furnace refining. The desulphurization rate by slag infiltration during LD tapping was from 14.8% to 59.1%,with an average level of 35.7%. The rate of heats with S content less than 0.015% reached 77%. The sulphur content of all heats was from 0.006% to 0.016%,with an average of 0.011% after LF refining.

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