新疆煤灰在不同高铬砖表面的侵蚀性研究  

Erodibility of Xinjiang Coal Ash on The Surface of Different Refractories

作　　者：乔波 杨澜 王红星 邢涛 于利红 王振华 姜晓枫 QIAO Bo;YANG Lan;WANG Hongxing;XING Tao;YU Lihong;WANG Zhenhua;JIANG Xiaofeng(Shandong Energy Group Coal Gasification New Materials Technology Co.,Ltd.,Jinan 250200,China)

机构地区：[1]山东能源集团煤气化新材料科技有限公司,山东济南250200

出　　处：《山东化工》2024年第22期65-69,共5页Shandong Chemical Industry

基　　金：国家重点研发计划:大规模煤转化灰渣资源化利用关键技术(2023YFB4103500)。

摘　　要：对高铬砖进行新疆煤灰抗侵蚀实验,利用扫描电子显微镜等表征方式分析侵蚀实验后的熔融煤灰和高铬砖。结果显示,新疆煤灰中碱性氧化物成分含量较多,侵蚀实验后形成致密的镁铝铬铁的复合尖晶石层覆盖在高铬砖表面,在一定程度上具有阻碍熔融煤灰向高铬砖内部渗透的作用;针对实验所用新疆煤灰,新型高铬砖较普通高铬砖的脱锆层更薄,抗侵蚀渗透性更强。Erodibility of xinjiang coal ash on the surface of different refractories.The coal ash and refractories after erosion test were analyzed by scanning electron microscopy(SEM).The results show that the content of alkaline oxide in coal ash in xinjiang is higher.After the erosion experiment,a dense composite spinel layer of magnesia-aluminum-chrome-iron is formed to cover the refractories,which can prevent the coal ash from penetrating into the refractories to a certain extent.For the Xinjiang coal ash used in the experiment,the new refractory has thinner dezirconium layer and stronger resistance to erosion and permeability than the ordinary refractory.

关 键 词：高铬砖 新疆煤灰 抗侵蚀性 显微结构 

分 类 号：TQ53[化学工程—煤化学工程]