转炉渣各组分对CaCO_3分解的影响研究
详细信息 查看官网全文
- 英文论文题名：Influence of converter slag on decomposition behavior of limestone during BOF steelmaking
- 论文作者：鲁华 ; 毛文文 ; 李晨晓 ; 李宏
- 英文论文作者：Lu Hua ; Mao Wenwen ; Li Chenxiao ; Li Hong ; Metallurgical and Ecological Engineer School ; University of Science and Technology Beijing
- 年：2016
- 作者机构：北京科技大学冶金与生态工程学院;
- 论文关键词：石灰石 ; 转炉炉渣 ; 热分析 ; 分解温度 ; XRD ; 活度
- 英文论文关键词：limestone ; converter slag ; thermal analysis ; decomposition temperature ; XRD ; activity
- 会议召开时间：2016-05-19
- 会议录名称：第十九届（2016年）全国炼钢学术会议大会报告及论文摘要集
- 语种：中文
- 分类号：TF713.3
- 学会代码：ZGJS
- 会议名称：第十九届（2016年）全国炼钢学术会议
- 会议地点：中国湖南长沙
- 主办单位：中国金属学会炼钢分会
- 学会名称：中国金属学会
- 页数：2
- 文件大小：83k
- 原文格式：O
- 会议级别：全国
摘要
为解释转炉炼钢使用石灰石替代石灰造渣成渣速度快的现象,本研究将FeOx、SiO_2、MnOx与CaCO_3混合模拟石灰石与炉渣接触的环境,进行了热重-差热(TG-DTA)同步热分析实验。结果表明,有炉渣组分共存能够降低CaCO_3的分解温度,其中在CaCO_3里加入其质量80%的SiO_2以后,可以使CaCO_3的峰值分解温度降低66℃,将混合料在管式炉煅烧后用X射线进行衍射分析发现,CaCO_3的分解产物能够与炉渣组分结合生成氧化物或者固溶体,降低CaO的活度。
During the process of converter steelmaking,we find the speed of slag get more quickly when using limestone instead of lime for slagging.Because limestone is surrounded by converter slag,we mixed FeOx,SiO_2,MnOx with CaCO_3 according to the certain proportion to simulate the environment of limestone in the converter slag.TG-DTA results show that FeOx,SiO_2 and MnOx can reduce the decomposition temperature of CaCO_3.XRD results find converter slag component will be combined with decomposition product of limestone and generate solid solution or oxide,reducing the activity of CaO and the decomposition temperature of CaCO_3.
During the process of converter steelmaking,we find the speed of slag get more quickly when using limestone instead of lime for slagging.Because limestone is surrounded by converter slag,we mixed FeOx,SiO_2,MnOx with CaCO_3 according to the certain proportion to simulate the environment of limestone in the converter slag.TG-DTA results show that FeOx,SiO_2 and MnOx can reduce the decomposition temperature of CaCO_3.XRD results find converter slag component will be combined with decomposition product of limestone and generate solid solution or oxide,reducing the activity of CaO and the decomposition temperature of CaCO_3.
引文