CAJ | 학술논문

采用FactSage理论计算以及熔点实验对CaO-FeO-Al2 O3-SiO2无氟的环保型铁水预处理脱磷渣系的熔化温度特性进行了系统研究,考察了炉渣碱度、Al2 O3和FeO质量分数三个因素渣系熔化温度特性的影响.研究结果表明：FeO的质量分数对渣系熔点的影响最大；炉渣的最佳配比为碱度5.5,Al2 O3质量分数10%,FeO质量分数45%,该配比下炉渣熔化特性在本实验条件下能够满足铁水预处理用渣的熔化温度特性的要求.
채용FactSage이론계산이급용점실험대CaO-FeO-Al2 O3-SiO2무불적배보형철수예처리탈린사계적용화온도특성진행료계통연구,고찰료로사감도、Al2 O3화FeO질량분수삼개인소사계용화온도특성적영향.연구결과표명：FeO적질량분수대사계용점적영향최대；로사적최가배비위감도5.5,Al2 O3질량분수10%,FeO질량분수45%,해배비하로사용화특성재본실험조건하능구만족철수예처리용사적용화온도특성적요구.
ABSTRACT Theoretical calculations by FactSage software and melting experiments were performed to systematically study the melting temperature characteristic of a CaO-FeO-Al2 O3-SiO2 fluoride-free slag system used for hot metal dephosphorization pretreat-ment. Three influence factors of the melting temperature of the slag were researched which were the slag's binary basicity, the mass fractions of Al2 O3 and FeO. The results show that the mass fraction of FeO has the greatest impact on the melting temperature of the slag among three factors. The obtained best proportion of the slag is the binary basicity of 5.5, 10% Al2 O3 and 45% FeO. Under the experimental conditions, the melting temperature characteristic of the optimal slag can meet requirements for hot metal dephosphoriza-tion pretreatment.