KR法铁水预脱硫工艺优化试验研究  

Experimental study on optimization of molten iron pre-desulfurization process by KR

作　　者：印传磊 田春阳 杨丽梅 郑力宁 YIN Chuanlei;TIAN Chunyang;YANG Limei;ZHENG Lining(Technology Center, Huaigang Special Steel Co., Ltd. of Jiangsu Shagang Group.Huai'an 223002, China;Key Laboratory of Special Steel New Materials for Rail Traffic of Jiangsu Province, Huai'an 223002, China)

机构地区：[1]江苏沙钢集团淮钢特钢股份有限公司总工办,江苏淮安223002 [2]江苏省轨道交通用特殊钢新材料重点实验室,江苏淮安223002

出　　处：《炼钢》2019年第4期8-11,70,共5页Steelmaking

摘　　要：通过对KR脱硫操作和工艺参数的试验,分析研究了KR铁水预脱硫的影响因素。试验结果表明,脱硫前铁水包中的高炉渣量、搅拌桨插入深度、搅拌时间、搅拌速度、搅拌桨质量对铁水脱硫率影响明显。制定了脱硫前扒渣和控制搅拌桨插入深度1.0 m左右、搅拌时间10~14 min、搅拌速度80 r/min等改进措施,取得了提高脱硫率的应用效果。Through the experiments of KR desulfurization operation and process parameters, the influencing factors of KR molten iron pre-desulfurization are analyzed and studied. The results show that, amount of blast furnace slag in ladle, insertion depth of stirring paddle, stirring time, stirring speed and quality of stirring paddle have a great influence on desulfurization rate of molten iron. Improvement measures such as the slag is removed before desulfurization, and controlling the insertion depth of the stirring paddle at about 1.0 m, the stirring time is 10-14 min, and the stirring speed is 80 r/min are formulated, and the application effect of improving desulfurization rate is achieved.

关 键 词：KR 搅拌桨 插入深度 搅拌时间 搅拌速度 

分 类 号：TF535.22[冶金工程—钢铁冶金]