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首页> 外文期刊>ISIJ international >Physical-modeling study of fluid flow and gas penetration in a side-blown AOD converter
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Physical-modeling study of fluid flow and gas penetration in a side-blown AOD converter

机译：侧吹式AOD转换器中流体流动和气体渗透的物理模型研究

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The main fluid-flow pattern that results in a converter with side gas injection was studied using physical modeling. Having roughly the same viscosity as liquid steel, water was used in the experiments. The velocity of the water was determined for different positions in the vessel symmetry plane by laser Doppler ve-locimetry. Experiments were performed using combinations of three different bath heights and four different gas-flow rates. The results showed penetration of the gas plume into the steel bath both at the tuyere and bath level to increase with an increased gas-flow rate. Also, the penetration depth of the gas both at the tuyere and bath surface level were more affected by an increased gas-flow rate than an increased bath height. Finally, the overall fluid-flow pattern in the system was found to change both with an increased bath height and an increased gas-flow rate.
机译：使用物理模型研究了产生带有侧注气的转炉的主要流体流型。在实验中使用了与液态钢大致相同的粘度。通过激光多普勒速度测定法在容器对称平面中的不同位置确定水的速度。使用三种不同的熔池高度和四种不同的气体流速的组合进行实验。结果表明，随着风量的增加，气羽在风口和熔池处都渗透到钢液中。同样，在风口和浴表面水平处的气体渗透深度受增加的气体流速的影响比增加浴高度的影响更大。最后，发现系统中的整体流体流动方式会随着浴池高度的增加和气体流速的增加而发生变化。

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