摘要
采用铁矿石中低温还原及焦炭反应性装置和高温熔体物性测试仪,分别进行焦炭反应性和炉渣黏度实验,研究未燃煤粉对焦炭和炉渣性能的影响。结果表明:未燃煤粉可起到保护焦炭的作用,未燃煤粉质量分数由0增加到9%,焦炭反应后强度(CRS)由72.0%增加到76.4%,焦炭反应性(CRI)由23.5%降低到16.1%;未燃煤粉作为熔体中的固体质点可使炉渣的黏度增加,质量分数由0增加到8%,炉渣黏度由0.266 Pa·s增加到0.591 Pa·s,质量分数增加到10%,炉渣黏度急剧上升到0.824 Pa·s。
Experiments about the coke reactivity and slag viscosity were performed with the medium-low temperature reduction and coke reactivity device of iron ore and the high-temperature melt property tester,and the effects of unburned pulverized coal on the properties of coke and slag were studied.The results show that the unburned pulverized coal can play a role in protecting coke,when the mass fraction of unburned pulverized coal increases from 0 to 9%,the coke after reacting strength(CRS)increases from 72.0%to 76.4%,and the coke reactivity(CRI)decreases from 23.5%to 16.1%;the unburned pulverized coal as solid particles in the melt makes the slag increase,when the mass fraction increases from 0 to 8%,and the slag viscosity increases from 0.266 Pa·s to 0.591 Pa·s,while the mass fraction increases to 10%,the slag viscosity increases sharply to 0.824 Pa·s.
作者
高鹏
魏军
李华军
安吉南
王平
魏汝飞
GAO Peng;WEI Jun;LI Huajun;AN Ji-nan;WANG Ping;WEI Rufei(Third Iron-making Plant,Ma’anshan Iron&Steel Co.Ltd.,Ma’anshan 243000,China;School of Metallurgical Engineering,Anhui University of Technology,Ma’anshan 243032,China)
出处
《安徽工业大学学报(自然科学版)》
CAS
2018年第1期1-4,44,共5页
Journal of Anhui University of Technology(Natural Science)
基金
国家自然科学基金项目(51474002)
关键词
未燃煤粉
焦炭性能
炉渣黏度
unburned pulverized coal
coke property
slag viscosity