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首页> 外文期刊>ISIJ international >Mathematical Modeling of the Melting of Sponge Iron in a Bath of Non-reactive Molten Slag
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Mathematical Modeling of the Melting of Sponge Iron in a Bath of Non-reactive Molten Slag

机译：非活性熔渣浴中海绵铁熔体的数学模型

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In this work a mathematical model was developed to predict the melting kinetics of an isolated sponge iron pellet in a bath of non-reactive liquid slag. The model represents an incipient stage of modeling of a real process in an industrial scale electric arc furnace. The model was validated by computing the melting time of a material in its own metallic bath and by computing the melting time of a material of different melting point than its bath. The effect of the physical properties of the pellet and slag as well as the fluid-dynamic conditions of the metal bath were studied on both the melting kinetics of the pellets and energy consumption in the process. The study revealed that the convective heat transfer coefficient between the metal bath and the particle is an important parameter because if this value is increased, the melting time and the thickness of slag shell are drastically decreased.
机译：在这项工作中，建立了数学模型来预测孤立的海绵铁丸在非反应性液态炉渣浴中的熔化动力学。该模型代表了工业规模电弧炉中实际过程建模的初期阶段。通过计算材料在其自己的金属熔池中的熔化时间并通过计算熔点与其熔池不同的材料的熔化时间来验证该模型。研究了颗粒和矿渣的物理性质以及金属浴的流体动力学条件对颗粒熔融动力学和过程能耗的影响。研究表明，金属熔池与颗粒之间的对流传热系数是一个重要的参数，因为如果增加该值，则熔化时间和炉渣壳的厚度将大大降低。

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