铁水罐吹气辅助扒渣工艺开发及改进  

Technology Development and Optimization of Using Porous Brick to Assist Slag-off of Hot Metal Ladle

作　　者：刘小卿[1] 陶勇钢[1] 王清方[1] 杜秀峰[1] 潘艳华[1] 

机构地区：[1]武钢股份公司第一炼钢厂

出　　处：《柳钢科技》2007年第F09期28-32,共5页

摘　　要：针对武钢第一炼钢厂采用纯镁脱硫存在渣量少而稀，渣中硫含量高，扒渣困难，扒渣时间长达11分钟／次、扒渣铁损高达5kg／t、炼钢回硫达0．0051％的情况，提出了在铁水罐上安装透气砖吹气辅助扒渣工艺，选择了合理的透气砖材质及安装位置，并在实践过程中不断改进．改善了扒渣效果：平均扒渣时间≤7min，平均扒渣铁损降至3．5kg／t以内，平均出钢回硫降至0．002％以内．透气砖平均寿命达到110次以上。The technology of using porous brick to assist slag-off of hot metal ladle is developed against the situation of using pure magnesium desulpburation and come up some problems, such as slag is lack and watery, slag-off is difficult, slag-off time is up to 11 minutes, iron loss of slag-off is up to 5kg/t, resulfurization of steelmaking is up to 0.0051%. And material and installation site of porous brick are selected and optimized in the practice. S average slagging lagging effectiveness is improved markedly, time does not exceed 7 minutes, average iron loss to 3.5kg/t, average resulfurization rate is declined from 0.0051% to is up to 110. of slag-off is declined from 5kg/t 0.002%, and average life lengthis up to 110 .

关 键 词：铁水预处理 铁水罐 透气砖 扒渣 纯镁脱硫 

分 类 号：TF76[冶金工程—钢铁冶金]