65t顶底复吹转炉快速降低炉底高度的生产实践  

Production practice of rapid reduction of bottom height in 65 t top-bottom combined blowing converter

作　　者：邓南阳[1] 潘军[1] 刘威 赵斌[1] 杨勇[1] DENG Nanyang;PAN Jun;LIU Wei;ZHAO Bin;YANG Yong(Long Product Division of Ma’anshan Iron&Steel Co.,Ltd.,Ma’anshan 243000,China)

机构地区：[1]马鞍山钢铁股份有限公司长材事业部,安徽马鞍山243000

出　　处：《炼钢》2021年第4期1-4,24,共5页Steelmaking

摘　　要：针对马鞍山钢铁股份有限公司65t顶底复吹转炉炉底上涨问题,分析了其产生原因并提出了具体的解决措施。生产实践表明:利用铁水与氧气反应,通过对氧枪枪位、氧气累计量以及浸泡侵蚀时间的合理控制,达到快速降低转炉炉底高度的目的,由于炉底超上限值造成吹炼困难引发喷溅率由0.63%下降至0.31%,钢铁料消耗降低4.16kg/t,为转炉炼钢生产安全提供了有力的保障。In view of the problem of bottom height rising of 65 t top and bottom combined blown converter in Masteel, the causes were analyzed and some solutions were proposed. Production practice showed that, by using the reaction of molten iron and oxygen, the height of converter bottom could be reduced rapidly by controlling the lance position, oxygen accumulation and erosion time. The splash rate decreased from 0.63 % to 0.31 % due to blowing difficulty caused by converter bottom exceeding upper limit, and ferrous charges consumption was reduced by 4.16 kg/t, which provided a strong guarantee for converter steelmaking production safety.

关 键 词：顶底复吹转炉 炉底高度 喷溅率 

分 类 号：TF713[冶金工程—钢铁冶金]