铁质渣料对转炉造渣工艺的优化实践  

Optimization Practice of Slagging Process of Converter with Ferrous Materials

作　　者：胡砚斌[1] 胡新福 黄芳[1] 侯中晓 何赛[1] HU Yanbin;HU Xinfu;HUANG Fang;HOU Zhongxiao;HE Sai(Metallurgical Technology Institute,Central Iron and Steel Research Institute,Beijing 100081,China;Ningxia Iron and Steel(Group)Co.,Ltd.,Zhongwei 755000,China)

机构地区：[1]钢铁研究总院有限公司冶金工艺研究所,北京100081 [2]宁夏钢铁(集团)有限责任公司技术质量部,宁夏中卫751700

出　　处：《山东冶金》2023年第4期25-27,34,共4页Shandong Metallurgy

基　　金：钢铁研究总院专项基金项目(事20161190ZD);现代生态智能电炉与电炉短流程关键技术开发项目(事20161190ZD)。

摘　　要：介绍利用转炉渣磁选回收的精铁矿、除尘灰制备的铁皮球及烧结矿筛下物优化转炉造渣工艺,将这些成分以铁氧化物为主的铁质料在转炉吹炼1.5 min时,在加石灰同时加入铁质渣料3~4 kg/t钢,在6.5~8.5 min时,加3.5 kg/t钢左右。铁质料的加入能够改善转炉化渣效果,降低钢水终点磷含量,减少石灰消耗。对钢铁企业转炉脱磷及处理回收的铁质料具有一定的参考意义。This paper mainly introduces the improvement of slag-making process of converter by using ferrous materials recovered by magnetic separation of converter slag,ferrous ball prepared by dedusting ash and sinter underscreen material,these ferrous materials mainly composed of FetO are added to 3-4 kg/ton of steel in converter when the blowing starts for 1.5 min,and the lime is added at the same time.At 6.5-8.5 min,about 3.5 kg/ton of steel is added.The slag melting effect and dephosphorization rate are improved,and lime consumption is reduced.This paper has certain reference significance for dephosphorization process and treatment of the recovered ferrous materials in iron and steel enterprises.

关 键 词：转炉 脱磷 造渣 铁质料 

分 类 号：TF713.3[冶金工程—钢铁冶金]