第36卷第1期 北京科技大学学报 Vol.36 No.1 2014年1月 Journal of University of Science and Technology Beijing Jan.2014 铁矿粉与Ca0同化反应性能的表征方法 王崇茂2》，吴铿回，折媛”，赵勇)，王梦”，杜瑞玲 1)北京科技大学钢铁治金新技术国家重点实验室，北京1000832)武钢股份有限公司炼钢总厂二分厂，武汉430000 3)首钢技术研究院，北京100041 ☒通信作者，E-mail:wukeng(@metall.usth.e.cm 摘要为解决在研究铁矿粉与C0进行同化反应时通常采用最低同化温度这一终点体系指标来表征，而没有考虑同化反 应速度和升温速率的缺陷以及采用多个指标来表征同化反应温度和速度在使用上的不便，本文充分利用铁矿粉在高温同化 反应过程中获得的数据和范特霍夫规则，提出了量纲为1的同化反应特征数.该特征数包括同化反应速度、升温速率、同化温 度和温度对同化反应速度的影响，可用来表征铁矿粉与C0的同化过程中铁矿粉的同化温度、同化反应时间、同化反应结束 温度等性能，并以烧结过程中的实际温度作为基准.该特征数综合了铁矿粉与C0在同化反应过程中各重要信息，可以更全 面地反映铁矿粉与C0的同化反应性能.对两种方法得到的结果进行了比较，发现仅考虑最低同化温度这一终点指标时得到 的结果相近，而采用同化反应特征数可以进一步细分出不同铁矿粉同化反应性能的差异. 关键词铁矿粉：烧结：氧化钙：同化反应：表征 分类号TF046.4 Characterization method for assimilation reactions between iron ores and CaO WANG Chong-mao,WU Keng,SHE Yuan,ZHAO Yong,WANG Meng,DU Rui-ling") 1)State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing,Beijing 100083,China 2)The Second Factory of Steel-Making Plant of WISCO,Wuhan 430080,China 3)Shougang Institute of Technology,Beijing 100041,China Corresponding author,E-mail:wukeng@metall.ustb.edu.cn ABSTRACT The lowest assimilation temperature is usually used as a terminal system index to characterize assimilation reactions between iron ores and CaO.However,this characterization does not take into account assimilation speed and heating rate.In order to adopt several indexes to evaluate the characteristics of the assimilation reactions,this article introduces an assimilation characteristic parameter by adopting the Vant Hoff's law and making full use of data obtained in the high temperature assimilation process of iron ores.The characteristic parameter,which considers assimilation speed,heating rate,assimilation temperature and the effect of temper- ature on assimilation speed,can characterize assimilation reactions between iron ores and Cao,including assimilation starting tempera- ture,assimilation time,assimilation finishing temperature,etc.Moreover,it is based on the practical production temperature of sinte- ring ores.Because of integrating much more important information in the assimilation process of iron ores,this parameter can compre- hensively reflect the assimilation properties of iron ores.Although the same or similar results are obtained by the two methods,com- pared with the conventional method by only considering the lowest assimilation temperature,the new method can find out assimilability differences of different iron ores in further analysis. KEY WORDS iron ores:ore sintering:calcium oxide:assimilation:characterization 在烧结过程中，高碱度烧结矿黏结相的形成始于Ca0和Fe,03的固相反应，最终得到以铁酸钙为 收稿日期：2012-11-21 基金项目：国家高技术研究发展计划资助项目(2009AA06Z105):国家自然科学基金资助项目(51274026,50934007,50874129) DOI:10.13374/j.issn1001-053x.2014.01.003:http://journals.ustb.edu.cn第 36 卷 第 1 期 2014 年 1 月 北京科技大学学报 Journal of University of Science and Technology Beijing Vol． 36 No． 1 Jan． 2014 铁矿粉与 CaO 同化反应性能的表征方法 王崇茂1，2) ，吴 铿1) ，折 媛1) ，赵 勇1，3) ，王 梦1) ，杜瑞玲1) 1) 北京科技大学钢铁冶金新技术国家重点实验室，北京 100083 2) 武钢股份有限公司炼钢总厂二分厂，武汉 430000 3) 首钢技术研究院，北京 100041  通信作者，E-mail: wukeng@ metall． ustb． edu． cn 摘 要 为解决在研究铁矿粉与 CaO 进行同化反应时通常采用最低同化温度这一终点体系指标来表征，而没有考虑同化反 应速度和升温速率的缺陷以及采用多个指标来表征同化反应温度和速度在使用上的不便，本文充分利用铁矿粉在高温同化 反应过程中获得的数据和范特霍夫规则，提出了量纲为 1 的同化反应特征数． 该特征数包括同化反应速度、升温速率、同化温 度和温度对同化反应速度的影响，可用来表征铁矿粉与 CaO 的同化过程中铁矿粉的同化温度、同化反应时间、同化反应结束 温度等性能，并以烧结过程中的实际温度作为基准． 该特征数综合了铁矿粉与 CaO 在同化反应过程中各重要信息，可以更全 面地反映铁矿粉与 CaO 的同化反应性能． 对两种方法得到的结果进行了比较，发现仅考虑最低同化温度这一终点指标时得到 的结果相近，而采用同化反应特征数可以进一步细分出不同铁矿粉同化反应性能的差异． 关键词 铁矿粉; 烧结; 氧化钙; 同化反应; 表征 分类号 TF046． 4 Characterization method for assimilation reactions between iron ores and CaO WANG Chong-mao 1，2) ，WU Keng1)  ，SHE Yuan1) ，ZHAO Yong1，3) ，WANG Meng1) ，DU Ｒui-ling1) 1) State Key Laboratory of Advanced Metallurgy，University of Science and Technology Beijing，Beijing 100083，China 2) The Second Factory of Steel-Making Plant of WISCO，Wuhan 430080，China 3) Shougang Institute of Technology，Beijing 100041，China  Corresponding author，E-mail: wukeng@ metall． ustb． edu． cn ABSTＲACT The lowest assimilation temperature is usually used as a terminal system index to characterize assimilation reactions between iron ores and CaO． However，this characterization does not take into account assimilation speed and heating rate． In order to adopt several indexes to evaluate the characteristics of the assimilation reactions，this article introduces an assimilation characteristic parameter by adopting the Van't Hoff's law and making full use of data obtained in the high temperature assimilation process of iron ores． The characteristic parameter，which considers assimilation speed，heating rate，assimilation temperature and the effect of temper￾ature on assimilation speed，can characterize assimilation reactions between iron ores and CaO，including assimilation starting tempera￾ture，assimilation time，assimilation finishing temperature，etc． Moreover，it is based on the practical production temperature of sinte￾ring ores． Because of integrating much more important information in the assimilation process of iron ores，this parameter can compre￾hensively reflect the assimilation properties of iron ores． Although the same or similar results are obtained by the two methods，com￾pared with the conventional method by only considering the lowest assimilation temperature，the new method can find out assimilability differences of different iron ores in further analysis． KEY WOＲDS iron ores; ore sintering; calcium oxide; assimilation; characterization 收稿日期: 2012--11--21 基金项目: 国家高技术研究发展计划资助项目( 2009AA06Z105) ; 国家自然科学基金资助项目( 51274026，50934007，50874129) DOI: 10． 13374 /j． issn1001--053x． 2014． 01． 003; http: / /journals． ustb． edu． cn 在烧结过程中，高碱度烧结矿黏结相的形成始 于 CaO 和 Fe2O3 的固相反应，最终得到以铁酸钙为