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在以足够高的运动相似性对双枪喷吹非旋转气流１８ ｔ ＡＯＤ 炉内流体流动和混合特性水模拟研究的基础上，对采用套管式螺旋板型喷枪时ＡＯＤ 熔池内流体流动和混合特性作了水模拟研究，所用喷枪的中心管（ 主枪） 内置有一厚度为０－２ ｍｍ 的黄铜质螺旋型板条，相应的螺距为４６－５７ ｍｍ ，环缝（ 副枪） 与原模型喷枪相同－ 考察了旋转射流下吹气量和枪间夹角的影响及螺旋型喷枪对实际过程的适用性－ 结果表明，在相同的吹气量下，与非旋转气体射流相比，旋转气体射流可提供更强烈的搅拌，引起流体更活泼的旋流和循环运动，混合效果更好；主枪气体流量有更大的决定性作用，副枪气流的屏蔽效果显著减弱；两枪夹角对流体流动特征和吹炼过程的稳定性有更大的影响，合宜的夹角范围变窄，本工作条件下以８０°最佳；具有合理结构的螺旋型喷枪对实际过程可望有良好的适用性－ 得到了混合时间与主、副枪的吹气量、搅拌能密度和Ｆｒ 及枪位等的相应关系
Based on the simulation of fluid flow and mixing characteristics in a 18 t AOD dual-gun non-rotating gas flow with sufficiently high similarity of motion, the flow and mixing of fluid in the AOD pool with the cannulated spiral spray gun Characteristics of the water simulation study conducted by the center of the gun with the gun (main gun) built a thickness of 0-2 mm brass spiral plate, the corresponding pitch 46-57 mm, the annular gap (sub-gun) and the original The same as the model spray gun - The effect of the spray volume under the jet and the angle between the gun guns and the applicability of the spiral spray gun to the actual process were investigated. The results show that at the same air blow volume, compared with the non-rotating gas jet, Can provide a more intense stirring, causing the fluid more swirling cyclonic and cyclic movement, the mixing effect is better; the main gun gas flow has a greater decisive effect, sub-gun airflow shielding effect significantly weakened; two gun angle of the fluid flow Characteristics and the blowing process has a greater impact on the stability of the appropriate angle narrowed the scope of the best conditions at 80 °; Reasonable structure of the spiral gun is expected to have good practicality of the process - got the mixing time and the main and sub-gun air volume, stirring density and Fr Fr and the corresponding relationship