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  • ISSN 1006-3080
  • CN 31-1691/TQ

氧化铁含量对煤渣冷却结晶特性的影响

韩冬 沈中杰 梁钦锋 许建良 刘海峰

韩冬, 沈中杰, 梁钦锋, 许建良, 刘海峰. 氧化铁含量对煤渣冷却结晶特性的影响[J]. 华东理工大学学报(自然科学版), 2017, (6): 756-762. doi: 10.14135/j.cnki.1006-3080.2017.06.002
引用本文: 韩冬, 沈中杰, 梁钦锋, 许建良, 刘海峰. 氧化铁含量对煤渣冷却结晶特性的影响[J]. 华东理工大学学报(自然科学版), 2017, (6): 756-762. doi: 10.14135/j.cnki.1006-3080.2017.06.002
HAN Dong, SHEN Zhong-jie, LIANG Qin-feng, XU Jian-liang, LIU Hai-feng. Influence of Fe2O3 Content on Crystallization Behavior of Slag at Cooling Process[J]. Journal of East China University of Science and Technology, 2017, (6): 756-762. doi: 10.14135/j.cnki.1006-3080.2017.06.002
Citation: HAN Dong, SHEN Zhong-jie, LIANG Qin-feng, XU Jian-liang, LIU Hai-feng. Influence of Fe2O3 Content on Crystallization Behavior of Slag at Cooling Process[J]. Journal of East China University of Science and Technology, 2017, (6): 756-762. doi: 10.14135/j.cnki.1006-3080.2017.06.002

氧化铁含量对煤渣冷却结晶特性的影响

doi: 10.14135/j.cnki.1006-3080.2017.06.002
基金项目: 

国家自然科学基金(U1402272,21376082);上海自然科学基金(14dz1200100);煤炭转化国家重点实验室基金(J16-17-301);中央高校基本科研业务费专项资金

Influence of Fe2O3 Content on Crystallization Behavior of Slag at Cooling Process

  • 摘要: 以神府烟煤为原料制备煤渣,并在渣中添加氧化铁,研究氧化铁含量对煤渣冷却结晶特性的影响。采用高温热台显微镜(HTSM)观察不同降温速率下晶体的析出过程,使用扫描电子显微镜(SEM)和能谱(EDS)分析晶体微观形态以及元素组成,运用X射线衍射仪(XRD)检测晶相,并用热力学模拟软件Factsage模拟高温下煤渣的平衡相图。结果表明,惰性气氛下渣中氧化铁质量分数的增加会促进晶体的析出,减少晶体培育时间,提高晶体初始析出温度并增大晶体尺寸;当氧化铁质量分数达到30%时,析出晶体的Fe元素含量增加,析出晶体由钙高铁辉石晶体转变为磁铁矿晶体。

     

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出版历程
  • 收稿日期:  2017-01-25
  • 刊出日期:  2017-12-28

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