ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2018, Vol. 39 ›› Issue (1): 1-5.

• 试验研究 •    下一篇

100t RH顶吹氧去除真空室内壁冷钢的数值模拟和应用

刘金刚1,2,3, 解家英1,史志强4,李战军1,初仁生1,郝宁1   

  1. 1、首钢技术研究院宽厚板所,北京,100043 ;
    2、绿色叮循环钢铁流程北京小重点实验室,北京,100043;
    3、北京市能源用钢工程技术研究中心,北京,100043;
    4、秦皇岛首秦金属材料有限公司炼钢部,秦皇岛,066326;
  • 收稿日期:2017-08-02 出版日期:2018-02-01 发布日期:2018-02-01
  • 作者简介:刘金刚(1976-),男,博士(2006年北京科技大学),高级工程师,低成本洁净钢开发及相关工艺技术研究。

Numerical Simulation of Removal of Cold Steel in Inner Wall of Vacuum Chamber of 100 t RH Unit by Top Oxygen-Lance Blowing and Application

Liu Jingang1,2,3, Xie Jiaying1 , Shi Zhiqiang4 , Li Zhanjun1 , Chu Rensheng1 ,  Hao Ning1   

  1. 1.Plate Technolog Department, Shougang Technology Research Institute, Beijing 100043 ;
    2.Beijing Key Laboratory of Green Recyclable Process for Iron and Steel Production Technology, Beijing 100043 ;
    3.Beijing Engineering Research Center for Energy Steel, Beijing 100043 ;
    4.Steelmaking Division, Shouqin metal Materials Co Ltd, Qinhuangdao 066326 ;
  • Received:2017-08-02 Published:2018-02-01 Online:2018-02-01

摘要: 对钢厂100 t RH将原天然气烘烤改为顶吹氧去除真空室内壁冷钢工艺改造进行了研究。对5.5~7.5m氧枪位置及750~1300m3/h氧气流量下的速度场进行了数值模拟,根据计算确定了在枪位为5.5~6.5m,氧气流量为900~1200m3/h时RH顶吹氧去除冷钢是可行的。工业生产应用结果表明,采用该顶吹氧去除冷钢工艺,明显提高了RH的连续处理能力,RH月处理能力由不到28.5%提高到36.0%左右,单月RH处理能力最高比例达到48.8%。

关键词: RH, 顶吹氧, 去除真空室内壁冷钢, 氧枪位置, 氧气流量

Abstract: The technology revamping of removing the cold steel in inner wall of vacuum chamber of 100t RH unit at steel by top oxygen blowing process to replace original nature gas baking process has been studied. The numerical simulation on velocity field with oxygen lance level 5. 5 〜7. 5 m and oxygen flow rate 750 ~ 1 300 m3/h is carried out and based on calculation it is defined that the RH top oxygen blowing with lance level 5. 5 ~6. 5 m and oxygen flow rate 900 ~ 1 200 m3/h to remove the cold steel is available. Commercial production application results show that the RH continuous processing capacity significantly increases by the top oxygen blowing to remove cold steel process, the RH monthly processing capacity increases from original less than 28. 5% to about 36.0% , and the highest RH processing percentage of single month is up to 48. 8%.