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本文介绍首都钢铁公司炼钢厂在30吨顶吹氧气转炉上进行计算机控制试验的情况.这项工作由1966年至1976年进行了十年.十年间,我们做了静态模型试验、连续测温研究、声学化渣测定、炉气定碳、付枪的研制、探头的定型等工作.我们曾设想调节喷枪高度和萤石加入量来动态控制化渣过程,并配合炉气成分分析进行转炉吹炼过程的最佳控制.介绍了试控中效果较好的增量法静态模型、自适应模型、炉气定碳卡尔曼滤波方法及化渣动态控制模型等.静态控制时,同时命中率达到70%(目标碳±0.04%,目标温度±20℃).现在继续研究稳定原料成分,改进操作技术,更换较精确的仪表,以求提高命中率.
This paper presents a review of the computer controlled tests conducted by the Capital Steel Works’ steelmaking plant on a 30-tonne top-blown oxygen converter from ten years from 1966 to 1976. Ten years later, we conducted static model tests and continuous temperature measurements Research, acoustic slag determination, determination of furnace gas, development of a gun, determination of a probe, etc. We have envisaged to adjust the height of the spray gun and the amount of fluorite added to dynamically control the slagification process and carry out the converter blowing The optimal control of refining process is introduced.It introduces the incremental method static model, adaptive model, fixed carbon kalman filtering method and slag dynamic control model with better control in trial and control.When static control is achieved, the hit rate reaches 70% (± 0.04% of target carbon, target temperature ± 20 ℃) Now continue to study and stabilize the composition of raw materials, improve operating techniques, replacement of more accurate instruments, in order to improve the hit rate.