摘要
针对邢钢一步法(脱磷站+60 t AOD+60 t LF)生产0Cr13C不锈钢过程中将AOD单渣操作改为双渣操作,以期降低脱碳期石灰加入量,并采用一次还原后补加石灰,来保证终渣质量,降低不锈钢整体冶炼成本。试验得出:AOD单渣变双渣操作后对于碳含量要求严格的低碳0Cr13C钢,后续炉渣变化对增碳产生的影响较小,并且前期渣量明显减少,石灰、萤石及硅铁每炉分别少用1. 003～1.387 t、0. 332～0.411 t及0.106～0. 177 t,吨钢成本下降37.48～44.48元。
In order to reduce the cost of smelting for 0Crl3C stainless steel which produced by one-step process （dephosphorization station ＋ 60 t AOD ＋ 60 t LF）, Xingtai Iron and Steel Co. Had replaced the single-slag to double-slag operation in the AOD furnace （ argon oxygen decarburization furnace） to reduce the decarbonization amount of lime. And through adding a extra lime operation after first reduction to ensure the quality of final slag steel. The results indicated that after AOD furnace from single-slag to the double slag operation, not only the influence of subsequent slag basicity change on the increasing carbon can be ignored for the low carbon OCr13C which with stringent carbon content is required, but also the early slag quantity decreases significantly. The using amount of Lime, fluorite and ferrosilicon respectively decreases by 1. 003 ton to 1. 387 ton, 0.332 ton to 0.411 ton and 0. 106 ton to 0. 177 ton for one furnace. The cost per ton of steel is re- duced by 37.48 to 44.48 yuan.
作者
宋云霞
李广斌
白李国
邸永田
张孟昀
雷学东
Song Yunxia;Li Guangbin;Bai Liguo;Di Yongtian;Zhang Mengyun;Lei Xuedong(Technology Center;Stainless Steel Co;Steelmaking Works,Xingtai Iron and Steel Co.Ltd,Xingtai 054027)
出处
《特殊钢》
北大核心
2018年第6期33-35,共3页
Special Steel
