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首页> 外文期刊>ISIJ international >Numerical Approach to Comprehend for Effect of Melts Physical Properties on Iron-slag Separation Behaviour in Self-reducing Pellet
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Numerical Approach to Comprehend for Effect of Melts Physical Properties on Iron-slag Separation Behaviour in Self-reducing Pellet

机译：理解熔融物理性质对自降低颗粒中铁渣分离行为影响的数值方法

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摘要

A smooth iron-slag separation during ironmaking process is necessary for the steel refining process, even in case of "Zero Carbon Ironmaking". For a fundamental comprehension of the effect of the physical properties of the melts on the iron-slag separation behaviour, a numerical approach with a practical multi-interfacial smoothed particle hydrodynamics (SPH) simulation for the tracking of the iron-slag separation behaviour is undertaken in this study. Experimental values for iron-slag separation conditions from a previous work and estimated physical properties from literature were used for the numerical analysis. The CLS-SPH method was able to reproduce the iron-slag separation behaviour where iron aggregated in a unitary sphere and the slag discharged onto the iron surface. A less viscous slag may reduce the negative impact on the separation. A slag with a high surface tension enables the slags to agglomerate and decreases the number of elements that may disturb the iron agglomeration. A highly dense slag has a strong influence on the variation of the iron-slag interface due to a larger momentum. The interfacial tension showed no obvious effect on the separation behaviour in the range of experimental values considered in this study.
机译：即使在“零碳熨烫”的情况下，钢精炼过程也需要在炼钢过程中进行光滑的熨烫分离。为了对熔体物理性质对铁渣分离行为的影响的基本理解，进行了一种具有实际多界面平滑粒子流体动力学（SPH）模拟的数值方法，用于跟踪熨斗分离行为在这个研究中。从先前的工作和来自文献的估计物理性质的熨烫分离条件的实验值用于数值分析。 CLS-SPH方法能够再现铁渣分离行为，其中铁在整体球中聚集，炉渣排出到铁表面上。较少的粘性炉渣可以减少对分离的负面影响。具有高表面张力的炉渣使炉渣能够凝聚并降低可能扰乱铁聚物的元件的数量。由于较大的动量，高度密集的炉渣对铁渣接口的变化具有很强的影响。界面张力对本研究中考虑的实验值范围内的分离行为没有明显影响。

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