氢基竖炉最佳开炉条件的数值模拟研究  

Numerical simulation for the optimal blowing-in conditions of hydrogen-based shaft furnaces

作　　者：金焱[1,2] 姜晓晴 王炜[2] 刘子钰 秦建涛 蔡国庆 JIN Yan;JIANG Xiaoqing;WANG Wei;LIU Ziyu;QIN Jiantao;CAI Guoqing(Faculty of Materials Science,Wuhan University of Science and Technology,Wuhan 430081,China;Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,China;Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking,Wuhan University of Science and Technology,Wuhan 430081,China;Shandong Refractories Group Lunai Kiln Co.,Ltd.,Zibo 255200,China)

机构地区：[1]武汉科技大学材料学部,湖北武汉430081 [2]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北武汉430081 [3]武汉科技大学钢铁冶金新工艺湖北省重点实验室,湖北武汉430081 [4]山东耐材集团鲁耐窑业有限公司,山东淄博255200

出　　处：《武汉科技大学学报》2024年第5期321-328,共8页Journal of Wuhan University of Science and Technology

基　　金：国家自然科学基金项目(51974212);中国宝武低碳冶金创新基金项目(BWLCF202116).

摘　　要：利用组分输运模型对不同孔隙度、入口温度、H2含量条件下氢基竖炉开炉5 h的升温情况进行了模拟研究。结果表明,当还原气体组分及入口温度保持不变时,随着孔隙度的增大,炉内中心温度总体呈现升高的趋势;当孔隙度与入口温度保持不变时,炉内中心温度随着还原气体中氢气含量的增高而降低;当孔隙度与还原气体成分保持不变时,炉内中心点温度随着入口温度的上升而升高。氢基竖炉的最佳开炉条件为孔隙率0.40~0.42、还原气体中H_(2)和CO体积占比为40%和60%、入口温度1173 K。The temperature rise in hydrogen-based shaft furnaces within 5 hours of opening under different porosities,inlet temperatures and hydrogen contents was simulated by the component transport model,and the results show that when the reducing gas components and inlet temperature remain unchanged,the temperature of the center point in the furnace shows an overall trend of increasing with the increase of porosity.When the porosity and inlet temperature remain unchanged,the temperature of the center point in the furnace decreases with the increase of hydrogen content in the reducing gas.When the porosity and reducing gas composition remain unchanged,the temperature of the center point in the furnace increases with the increase of the inlet temperature.In addition,it is found out that the optimal opening conditions of hydrogen-based shaft furnaces are porosity at 0.40~0.42,hydrogen content at 40%,carbon monoxide content at 60%in reducing gas and inlet temperature at 1173 K.

关 键 词：氢基竖炉 组分输运模型 孔隙度 还原气成分 入口温度 

分 类 号：O359.2[理学—流体力学]