期刊
STEEL RESEARCH INTERNATIONAL
卷 92, 期 11, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/srin.202100122
关键词
numerical simulation; OpenFOAM; reactive cleaning; steel filtration; steelmaking
资金
- German Research Foundation (DFG) [169148856]
- Projekt DEAL
This study investigates the combined influence of reactive cleaning and active filtration on inclusion removal through numerical simulations. Results show that reactive cleaning plays a dominant role in enhancing melt cleanliness, highlighting its significant positive effect despite the short time of the reactive phase of the filters. The findings emphasize the importance of reactive cleaning in the steel casting industry for improving inclusion removal and steel quality.
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.
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