摘要
介绍了UCAR炭砖在鞍钢高炉炉缸的应用状况,根据炉缸结构、冷却系统,结合炭砖理化检验结果,分析讨论了鞍钢UCAR炭砖炉缸异常侵蚀原因,认为炉缸炭砖必须使用电煅无烟煤生产工艺,不能使用过量填加石墨的生产工艺,炉缸炭砖不能片面追求导热系数指标,必须综合考虑平均孔径、小于1μm容积比、抗氧化性、抗碱性、抗渣侵蚀和铁水溶蚀率。
The current situation of application of UCAR carbon bricks in building the BF hearth of Angang is introduced. The causes leading to the abnormal erosion of UCAR carbon bricks in Angang are analyzed and discussed with regard to the structure of the hearth, the cooling system and inspection results by physical and chemical means. According to the analytical results it is believed that carbon bricks for building the hearth have to be made of electrically calcined anthracite coal, but not made of those with adding excessive graphite, for the excessive pursuit of the thermal conductivity index of carbon bricks for building the BF hearth should not be done, instead all these factors such as average pore size, volumetric ratio less than 1 μm, oxidation resistance, alkalinity resistance, rate of resistance to slag erosion and dissolution rate of hot metal must be considered comprehensively.
出处
《鞍钢技术》
CAS
2015年第2期15-19,共5页
Angang Technology
关键词
高炉
炉缸
UCAR炭砖
侵蚀
blast furnace
hearth
UCAR carbon bricks
erosion
