电工钢 ›› 2020, Vol. 2 ›› Issue (2): 45-49.

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连退炉辐射管时序脉冲燃烧控制方式的应用和分析

郭 琪1,李元华1,刘文鹏2,陈新1,袁雪松1    

  1. 1.鞍钢股份有限公司 冷轧硅钢厂,辽宁 鞍山 114021;2.鞍钢集团 钢铁研究院,辽宁 鞍山 114009 
  • 出版日期:2020-06-28 发布日期:2020-09-01

Application and analysis of timing pulse combustion control mode in continuous furnace radiant tube

GUO Qi1,LI Yuanhua1,LIU Wenpeng2,CHEN Xin1,YUAN Xuesong1   

  1. 1.Ansteel Company Limited ColdRolling Silicon Steel Mill,Anshan 114021,China;2.Iron & Steel Research Institutes of Ansteel Group Corporation,Anshan 114009,China
  • Online:2020-06-28 Published:2020-09-01

摘要: 针对连续退火炉原有燃烧控制系统目前存在的问题,对辐射管加热段进行优化。利用横河的DCS集散控制系统,分析空气和煤气的配比,及其他影响因素,建立控制参量之间的关系,推出退火炉燃烧系统的传递函数。并运用时序脉冲燃烧控制的方法对辐射管加热段进行优化控制,提高了控制精度,减少了带钢表面氧化,同时提高加热效率,节能环保效果显著。

关键词: 连续退火炉, PID燃烧控制, 时序脉冲燃烧

Abstract: In view of the existing problems in the original combustion control system of continuous annealing furnace, the heating section of radiant tube was optimized. Based on DCS distributed control system of YOKOGAWA, the proportion of air and COG and other influencing factors were analyzed, and the ralationship among these control parameters  was established, so then the transfer function of annealing furnace combustion system was successfully enduced. By using the method of timing pulse combustion control to optimize the heating section of radiant tube, which was proved to have a remarkable effect on energy conservation and environmental protection, the control accuracy was optimized, and the surface oxidation of strip steel was reduced , and the heating efficiency was improved at the same time.

Key words: continuous annealing furnace, PID combustion control, timing pulse combustion