Simulation and analysis of O_(2)-CaO jet behavior with different shrouding fuel mediums in electric arc furnace steelmaking
作者机构：School of Metallurgical and Ecological EngineeringUniversity of Science and Technology BeijingBeijing 100083China Beijing Key Laboratory of Special Melting and Preparation of High-End Metal MaterialsBeijing 100083China Beijing Rongcheng Jingye Technology Co.Ltd.Beijing 100083China
出 版 物：《Journal of Iron and Steel Research(International)》 (钢铁研究学报（英文版）)
年 卷 期：2020年第27卷第11期
页 面：1259-1269页
核心收录：
学科分类：080602[工学-钢铁冶金] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学]
基 金：the Fundamental Research Funds for the Central Universities(FRF-TP-19-031A1) the China Post Postdoctoral Science Foundation(2020T130053,2019M660459) the National Natural Science Foundation of China(No.51734003)
主 题：O_(2)-CaO jet Shrouding fuel medium Electric arc furnace steelmaking Numerical simulation Cold test CaO particle
摘 要：The O_(2)-CaO jet with shrouding combustion flame demonstrates some advantages in quick melting and effective slag foaming by delivering lime powder deeply into the molten *** the discrete particle model and the eddy dissipation concept model with the detailed chemical kinetic mechanisms(GRI-Mech 3.0),computational fluid dynamics models of the O_(2)-CaO jet with different shrouding fuel mediums injection were ***,the results of the numerical simulation were validated by the measured data of cold test for O_(2)-CaO ***,the interaction between the particles and the gas jet of the O_(2)-CaO jet and the effect of shrouding fuel medium species on the fluid flow characteristics of the O_(2)-CaO jet were *** show that the CaO particles can be effectively heated by the shrouding high-temperature combustion flame and compared with the O_(2)-CaO jet without shrouding gas,the potential core length was increased about 2.5,3.3 and 4.3 times by the shrouding flame generated from CO,CH_(4) and C_(3)H_(8).And with shrouding CH_(4) and C_(3)H_(8) injection,the CaO particles can be clustered together in a long distance,which would be helpful to improve the utilization efficiency of CaO particles.
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