摘要
为了通过改进转炉渣洗精炼工艺而减缓LF炉的作业压力,本文对转炉渣洗工艺进行了系统的理论阐述及工业实验.在工业实验中,采用铁水脱硫—转炉冶炼—出钢渣洗—氩站处理—连铸机浇注的生产工艺,在转炉出钢过程中投掷脱氧剂进行渣料造渣,通过吹氩搅拌为出钢过程创造良好的反应动力学条件以脱氧和脱硫,将氧的质量分数控制在2×10-5以内,过程脱硫率达到了45%～65%.而且因该工艺处理时间短,与普通LF工艺相比其回磷量更低.另外,由于熔渣的保温作用,使得中间包温降达到与LF温降相当的程度.
For the purpose of slowing down the LF stove the work pressure by improving the craft of slag washing of converter, slag washing of converter in a systematic theory and the experiment of industry was ex-plained. In the industry experiment, the production craft of the iron melt desulphurization ? converter smelting steel tapping slag washing ? argon station processing ? pouring continuous caster was used. The deoxidizer in the converter tapping process was thrown to carry on slag formation of slag charge, through blowing the argon agitation for the tapping process creation good reaction kinetics condition for the deoxidization, the desulphuri-zation, the oxygen content control in 2×10?5. The process desulfurization percentage was achieved 45%~65%. Moreover, because this craft process time was short, it was lower that compared phosphorus kick-back quantity with the ordinary LF craft. As a result the slag heat preservation function, the middle package temperature was dropped suitable degree to achieve with the LF temperature.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2007年第S1期69-72,共4页
Journal of University of Science and Technology Beijing
关键词
转炉炼钢
合成渣
渣洗
脱硫
脱氧
converter steel-making
synthetic Slag
slag washing
desulphurization
deoxidization
