300t转炉底吹布置优化水模试验  

WATER MOLD TEST FOR BOTTOM BLOWING OF 300 t CONVERTER

作　　者：王正[1] 孙彦辉[1] 

机构地区：[1]北京科技大学冶金与生态工程学院

出　　处：《河南冶金》2015年第6期1-4,共4页Henan Metallurgy

摘　　要：为了提高底吹布置的冶金效果,过多的底吹原件在炉役后期难以实现快速更换,希望优化目前数量过多的底吹布置数目。试验以相似模型实验理论为基础,对300 t复吹转炉,通过冷态实验,研究了底吹元件布置方式,底吹元件数量、底吹供气强度、氧枪枪位等对熔池混匀时间影响。结果表明,各因素对混匀时间影响各不相同。最短的混匀时间操作参数为:底吹布置8-B,顶吹流量为14.35 m^3/h(对应原型18007 m^3/h),氧枪枪位为128 mm(对应原型2400 mm),底吹流量为2.74 m^3/h(对应原型3673 m^3/h)。In order to advance metallurgical effect of bottom blowing system, it is difficult to replace too much blowing layout in Late service life, the current number of the number of end blowing layout was expected to cut down. Based on similarity theory of model experiment and a 300 t duplex combined blowing converter, by means of cold model experiment , the influential factors of the number and configuration of bottom tuyeres , bottom gas strength and lance height on the mixing time were studied. The results indicated, each factor has different effects. The operating parameters of the shortest mixing time were obtained as follows ： layout 8 - B of bottom tuyeres , flowrate of top blowing 14.35 m^3/h（ corresponding prototype 18007 m^3/h）, lance height 128 m（ corresponding prototype 2400 mm）flowrate of bottom blowing 2.74 m^3/h（ corresponding prototype 3673 m^3/h）.

关 键 词：正交实验 水模实验 混匀时间 

分 类 号：TF713[冶金工程—钢铁冶金]