摘要
通过对工业气化炉用后砖、回转抗渣实验后试样以及静态坩埚抗渣实验后试样宏观结构、显微结构及能谱分析,对比高铬砖在水煤浆气化炉真实服役环境和实验室模拟抗渣条件下损毁形式的不同。结果表明,高铬砖在真实气化环境中的损毁主要受:化学侵蚀、熔渣渗透以及热剥落三方面共同作用。实验室模拟条件下的两种抗渣实验结果在化学侵蚀和熔渣渗透方面与真实环境下的损毁机理较为一致,在热剥落方面与真实环境下的结果差异大。实验室抗渣模拟试验对评价气化炉用材料的抗渣侵蚀和抗渣渗透具有可借鉴性。
The analysis of macro structure, micro structure and energy spectrum of high chromium brick samples after being used in industrial gasifier, in slagging resistance experiment and in static crucible slagging resistance experiment has been conducted to compare the difference of brick damage mode under real service environment and laboratory simulation condition. The result shows that the damage under real gasification environment is caused by combined reaction of chemical erosion, slagging penetration and thermal spalling. Under laboratory simulation condition, the slagging resistance experiment shows that chemical ero sion and slagging penetration react the same on brick damage as under real environment, however thermal spalling is quite different from real environment. Using laboratory slagging resistance simulation experiment to evaluate slagging resistant and penetration of material used on gasifier will be of great importance of reference.
作者
李红霞
孙红刚
李鹏涛
耿可明
闫双志
Li Hongxia;Sun Honggang;Li Pengtao;Geng Keming;Yan Shuangzhi(Sinosteel Corporatoin Luoyang Refractory Material Research Institute Co. ,Ltd., State Key Laboratory of A dvanced Refractory Material, Luoyang 471039)
出处
《大氮肥》
CAS
2018年第2期80-85,97,共7页
Large Scale Nitrogenous Fertilizer Industry
基金
国家自然科学基金重点资助项目(U1604252)
国家重点研发计划资助项目(2017YFB602304)
关键词
水煤浆气化
高铬砖
抗渣性
剥落
渗透
coal slurry gasification
high chromium brick
slagging resistance
spalling
penetration
