Cold Model Experiment to Simulate the Melting Process of Recycled Steel for a Converter Using Ice Water Mixture

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-08-08 DOI:10.1002/srin.202300845

Mengke Liu, Dingli Zheng, Guojun Ma, Qiang Fang, Renxiang Lv, Huazhi Gu, Xiang Zhang

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引用次数: 0

Abstract

To study the melting process of recycled steel in converter bath and explore its influence mechanism on improving the smelting efficiency of converter, a cold model experiment of melting process of recycled steel is performed. The effect of size, shape, and ratio of recycled steel as well as top‐ and bottom‐blowing stirring on the melting behavior of ice cubes and mixing process of bath is researched. In the results, it is shown that as the ice ratio increases from 5% to 20%, the final stable temperature of water bath gradually decreases from 19.0 to 2.3 °C, the time for total melting of ice cubes and mixing time of bath increase from 913 and 135 s to 2856 and 325 s, respectively. With increasing ice size from 20 × 20 × 20 to 45 × 45 × 45 mm3, the time for total melting of ice cubes and mixing time of bath gradually increase from 1205 and 105 s to 1523 and 163 s, respectively. The time for total melting of ice cubes and mixing time of bath gradually reduce with the increase in top‐ and bottom‐blowing flow. In addition, the relationship between weight and specific surface area of recycled steel with scrap ratio is obtained.

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利用冰水混合物模拟转炉回收钢熔化过程的冷模型试验

为了研究回收钢在转炉熔池中的熔化过程，探索其对提高转炉冶炼效率的影响机理，进行了回收钢熔化过程的冷模型试验。研究了回收钢的尺寸、形状、比例以及顶吹和底吹搅拌对冰块熔化行为和熔池混合过程的影响。结果表明，随着冰块比例从 5%增加到 20%，水浴的最终稳定温度从 19.0 ℃逐渐降低到 2.3 ℃，冰块完全融化时间和水浴混合时间分别从 913 秒和 135 秒增加到 2856 秒和 325 秒。随着冰块体积从 20 × 20 × 20 增大到 45 × 45 × 45 立方毫米，冰块完全融化的时间和水浴混合时间分别从 1205 秒和 105 秒逐渐增加到 1523 秒和 163 秒。随着上吹和下吹流量的增加，冰块完全融化时间和浴槽混合时间逐渐缩短。此外，还得到了回收钢重量和比表面积与废钢比之间的关系。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.