基于热-质平衡的液态钢渣改性剂添加量的研究  

Study of the modification addition of liquid steel slag based on heat-mass balance

作　　者：代文彬[1,2] 王倩 刘洋 田京雷 李宇 张玲玲 苍大强 Dai Wenbin;Wang Qian;Liu Yang;Tian jinglei;Li Yu;Zhang Lingling;Cang Daqiang(University of Science and Technology Beijing;China ENFI Engineering Technology Co.,Ltd.;HBIS Group Co.,Ltd.)

机构地区：[1]北京科技大学冶金与生态学院 [2]中国恩菲工程技术有限公司 [3]河钢集团有限公司 [4]北京科技大学能源与环境工程学院 [5]北京科技大学钢铁冶金新技术国家重点实验室

出　　处：《冶金能源》2023年第3期28-31,36,共5页Energy For Metallurgical Industry

基　　金：中央高校基本科研业务费资助项目(FRF-IC-17-007)。

摘　　要：为了同时利用钢渣及其高温余热,以出炉温度为条件,建立热平衡和物料平衡,定量分析了粉煤灰与炼钢炉渣的质量比随着粉煤灰预热温度和改性反应温度变化的规律。得到了炉渣改性剂的添加比例和改性后炉渣的熔化温度之间的关系。工业验证实验结果表明,改性后的钢渣降低了CaO/SiO_(2)和游离CaO含量,不仅高效利用了熔渣显热,还提高了铁氧化物的回收率和钢渣的胶凝活性。In order to utilize both the slag and its high-temperature waste heat,the heat balance and material balance were established at the furnace discharge temperature,and the mass ratio of fly ash to steel slag was quantitatively analyzed with the change of fly ash preheating temperature and modification reaction temperature.The relationship between the addition ratio of slag modifier and the melting temperature of the modified slag was obtained.The results of industrial validation experiments showed that the modified slag decreased CaO/SiO_(2) and free CaO,which not only utilized the sensible heat of slag efficiently,but also improved the recovery of iron oxide and the activity of slag.

关 键 词：钢渣 液态改性 热—质平衡 模型预测 

分 类 号：X757[环境科学与工程—环境工程]