【摘要】 本文简要报导了应用压力传感器快速扫描在线测量系统进行转炉炼钢中二次燃饶双流道氧枪多股射流流场特性的研究。在改变主、副氧枪供氧压力、氧枪枪泣、副枪喷孔孔数、副枪与氧枪中心线的夹角以及主、副氧枪喷孔之间轴向距离等各种参数条件下,进行了实验研究并找出了以上诸参数的最佳值。实验证明超、亚音速多股射流动量抽引迭加模型计算值与实测值相当符合。更多还原

【Abstract】 Study on multiple jet flow characteristics of post combustion (P.C) oxygen lance in BOF steelmaking process by using a fast scanning pressure sensor on-line measurement system are reported briefly in this paper. The experimental studies have beer carried out by changing various para- meters of P.C. dual flow oxygen back pressures, lance height, the number of the main and P.C. nozzles, the angle between two centerlines of the main oxygen lance and P.C. nozzles, the interval between the main and P.C. nozzles along the centerline of oxygen lance, with optimum operation parameters were found. Experimental results show that the calculated values in light of the momentum superposition model of velocity distribution for supersonic and subsonic multiple jets is in good agreement with experimental data.更多还原