200t半钢炼钢转炉提高供氧强度的工艺实践  

Research on increasing oxygen blowing intensity of 200t semi-steel steelmaking converter

作　　者：陈均[1] 周海龙 喻林 梁新腾[1] 汪盼 曾建华[1] CHEN Jun ZHOU Hailong YU Lin LIANG Xinteng WANG Pan ZENG Jianhua(State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Pangang Group Research Institute Co., Ltd., Panzhihua 617000, China Pangang Group Xichang Vanadium ＆ Steel Co., Ltd., Xichang 615000, China)

机构地区：[1]攀钢集团研究院有限公司钒钛资源综合利用国家重点实验室,四川攀枝花617000 [2]攀钢集团西昌钢钒有限公司,四川西昌615000

出　　处：《炼钢》2017年第5期61-65,共5页Steelmaking

摘　　要：为缩短冶炼时间,提高转炉冶金效果,攀钢集团西昌钢钒有限公司炼钢厂在现用氧枪喷头参数不变的情况下,通过对喷头氧气射流与熔池的相互作用关系的研究以及对冶炼工艺制度的优化,将转炉供氧强度由3.0m3/(t·min)提高到3.6m3/(t·min),并取得了良好的冶金效果。试验结果表明,提高供氧强度后,纯吹氧时间平均缩短1.7 min,初期渣形成时间缩短0.8 min;吨钢氧耗降低2.2 m3,终渣TFe质量分数平均降低1.49%;在辅料消耗降低的同时,脱磷率平均提高1.8%。In order to reduce heating time and improve metallurgical effects of converter, Pangang Group Xichang Vanadium ＆ Steel Co. ,Ltd. increased the oxygen blowing intensity from 3.0 m3/（t· min） to 3.6 m3/（ t· min） under the same oxygen nozzle according to the researching result of interaction relationship between oxygen jet flow and bath, as well as optimization of smelting technological system, and good metallurgical effects were got. The results indicated that by increasing blowing intensity, pure blowing time and slag-forming time were shortened by 1.7 min and 0.8 min respectively; oxygen consumption was reduced by 2.2 m3/t, and TFe mass fraction of slag was reduced by 1.49 % as well; In addition,dephosphorization ratio was improved by 1.8 % though auxiliary materials consumption was reduced.

关 键 词：半钢炼钢 供氧强度 干法除尘 脱磷 

分 类 号：TF724.4[冶金工程—钢铁冶金]