论文部分内容阅读
本文总结了用模型实验研究顶吹氧气转炉炼钢过程中超音速氧气射流的特性及其对熔池作用的某些问题。应用相似原理进行实验室研究,得出超音速氧气射流轴线上速度衰减,断面速度分布,以及射流对液体熔池的穿透深度和冲击面积等一些规律性的结果。根据这些结果建立了数学模型,并结合首钢试验厂5吨转炉熔炼时间的研究,相对地放大到实际生产炉上去,进行了381炉热模拟试验。结果证明,在不影响冶炼效果的条件下,平均每炉吹氧时间由14分钟缩短到12分钟是可行的。
This paper summarizes some of the characteristics of supersonic oxygen jets and their effects on molten pool during model steelmaking using a model experiment. The principle of similar principle was used in the laboratory to get the results of velocity attenuation, velocity distribution on the supersonic oxygen jet axis, penetration depth and impact area of the jet on the liquid pool. Based on these results, a mathematical model was established. Combined with the research on the melting time of 5 ton converter in Shougang Experimental Plant, the 381 furnace thermal simulation experiment was carried out with relative enlargement to the actual production furnace. The results show that without affecting the smelting effect, the average oxygen blowing time per furnace from 14 minutes to 12 minutes is feasible.