100 t顶底复吹转炉氧枪喷头优化的试验研究  

Optimization of oxygen lance nozzle for a 100 t top and bottom combined blowing converter

作　　者：王鹏[1] 印传磊 吴伟[1] 崔怀周[1] 李相臣[1] 郑力宁 

机构地区：[1]钢铁研究总院冶金工艺研究所,北京100081 [2]淮钢特钢股份有限公司,江苏淮安223002

出　　处：《炼钢》2017年第6期9-14,共6页Steelmaking

摘　　要：针对冶炼过程中存在的氧枪使用寿命低和氧气消耗量高的问题,对100 t转炉氧枪喷头进行了优化。研究内容包括转炉管道压力损失测定、氧枪喷头水模试验和现场试验。转炉管道压力损失的测定结果表明,在实际使用压力0.8 M Pa下,氧枪管道阻损在0.08~0.10 M Pa,导致供氧压力不足;氧枪喷头的水模实验结果表明,新喷头冲击深度增加7~18 mm,冲击面积增大28~65 mm2,混匀时间缩短1.9~9.3 s;现场氧枪喷头试验结果表明,冶炼时间缩短0.5 m in,总造渣料减少约1 kg/t,脱磷率提高1.9%。To solve the problems of low service life of oxygen lance and high oxygen consumption, the design of oxygen lance nozzle was optimized for a 100 t top and bottom combined blowing converter. The study includes measuring the pressure loss of oxygen pipeline, water modeling experiment and industrial test. The result of measuring oxygen pipeline pressure loss shows that the resistance loss of oxygen pipeline is 0.08 - 0.10 MPa during the using pressure 0.8 MPa, leading to an insufficient oxygen pressure for the original lance nozzle. The water modeling experiment shows that, with the new lance nozzle design, the impact depth of metal bath is increased by 7 - 18 mm, the impact area of metal bath is enlarged by 28 - 65 mm2 and the mixing time of bath is shortened by 1.9 - 9.3 s. The industrial test shows that the smelting time is shortened by 0.5 min, the total slagging materials consumption is reduced bv about 1 kg/t and the deDhosnhorization rate is improved bv 1.9 %.

关 键 词：氧枪喷头 水模试验 现场试验 脱磷率 

分 类 号：TF71[冶金工程—钢铁冶金]