Numerical Investigation of the Combined Effect of Reactive Cleaning and Active Filtration on Inclusion Removal in an Induction Crucible Furnace,Steel Research International

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Numerical Investigation of the Combined Effect of Reactive Cleaning and Active Filtration on Inclusion Removal in an Induction Crucible Furnace
Steel Research International ( IF 1.9 ) Pub Date : 2021-06-03 , DOI: 10.1002/srin.202100122
Amjad Asad ₁ , Rüdiger Schwarze ₁

Affiliation

Herein, the combined influence of reactive cleaning and active filtration on inclusion removal is investigated using numerical simulations. Carbon-bonded ceramic foam filters with active and reactive effect are inserted into the steel melt to remove nonmetallic inclusions. In case of reactive cleaning, carbon can dissolve from the filters into the melt. As a result, carbon reacts with oxygen on inclusion surface to form carbon monoxide bubbles. The filters can capture inclusions in terms of its active effect. A numerical model is developed in the open source library OpenFOAM to study the efficiency of the combined effect of filters. The results of the numerical simulations show that the flow field and the concentration of carbon are affected considerably by the position and the number of the used filters. Moreover, the results highlight the significant positive effect of reactive cleaning on the level of melt cleanliness despite the short time of the reactive phase of the filters. Moreover, it is apparent from the results that reactive cleaning dominates active filtration. The findings of the article prove the importance of reactive cleaning in the steel casting industry to enhance inclusion removal and improve steel quality.

中文翻译：

反应清洗和活性过滤对感应坩埚炉中夹杂物去除的综合影响的数值研究

在此，使用数值模拟研究了反应清洁和主动过滤对夹杂物去除的综合影响。将具有活性和反应作用的碳结合陶瓷泡沫过滤器插入钢熔体中，以去除非金属夹杂物。在反应清洗的情况下，碳会从过滤器中溶解到熔体中。结果，碳与夹杂物表面的氧反应形成一氧化碳气泡。过滤器可以根据其活性效果捕获夹杂物。在开源库 OpenFOAM 中开发了一个数值模型来研究过滤器组合效果的效率。数值模拟结果表明，流场和碳浓度受所用过滤器的位置和数量的影响很大。而且，结果表明，尽管过滤器的反应阶段时间很短，但反应清洁对熔体清洁度的显着积极影响。此外，从结果中可以明显看出，反应性清洁在主动过滤中占主导地位。文章的研究结果证明了反应清洗在铸钢行业中对增强夹杂物去除和提高钢质量的重要性。

更新日期：2021-06-03

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