| 旋转磁场作用下真空精炼装置内脱碳过程的模拟研究 |
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| 引用本文： | 齐凤升,李宝宽,陈海耿.旋转磁场作用下真空精炼装置内脱碳过程的模拟研究[J].东北大学学报(自然科学版),2009,30(8):1159-1162. |
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| 作者姓名： | 齐凤升 李宝宽 陈海耿 |
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| 作者单位： | 东北大学,材料与冶金学院,辽宁,沈阳,110004 |
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| 基金项目： | 国家自然科学基金和宝山钢铁股份有限公司联合资助项目 |
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| 摘 要： | 为了了解旋转磁场下真空精炼装置内的脱碳反应,对RH装置内钢液流场与脱碳过程进行了耦合计算;采用修正的均相流模型计算流场,避免了先前的一些不具推广性的方法,如简化计算区域或者预先规定含气率分布等.分别对有、无旋转磁场作用时的RH系统进行了模拟计算.模拟结果表明:流场和脱碳过程与现有文献中实验结果相符合;当旋转磁场作用后,磁感应强度为0.04 T时,初期脱碳速度比无旋流作用时增加了约15%,这是由于旋流增加了系统的搅拌能,提高了脱碳反应速率.脱碳反应进行到最后阶段,不同磁感应强度下的碳含量趋于同一稳定值.
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| 关 键 词： | 真空精炼 RH真空脱气 脱碳 钢液流动 电磁搅拌 旋转磁场 |
Modeling Investigation on Decarburization Process in RH Refining System Under the Action of Rotating Electromagnetic Field |
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| QI Feng-sheng,LI Bao-kuan,CHEN Hai-geng.Modeling Investigation on Decarburization Process in RH Refining System Under the Action of Rotating Electromagnetic Field[J].Journal of Northeastern University(Natural Science),2009,30(8):1159-1162. |
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| Authors: | QI Feng-sheng LI Bao-kuan CHEN Hai-geng |
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| Institution: | QI Feng-sheng,LI Bao-kuan,CHEN Hai-geng(School of Materials & Metallurgy,Northeastern University,Shenyang 110004,China.) |
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| Abstract: | A mathematical model was developed to investigate the molten steel flow and decarburization process in RH vacuum degasser system under the action of electromagnetic field.A modified homogeneous flow model was introduced to calculate the flow field in RH degasser,thus getting rid of some earlier methods that are unavailable to be generalized,such as reducing the computation region or presetting the distribution of gas volume fraction.The RH system with and without rotating magnetic field were simulated,and t... |
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| Keywords: | vacuum refining RH vacuum degassing decarburization molten steel flow electromagnetic stirring rotating electromagnetic field |
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