In order to effectively prolong the campaign life of blast furnace in its middle and late period of service,the holistic pouring repair technology of blast furnace hearth lining is developed and applied in 3 large-sized blast furnaces of Shougang,remarkable application results and economic benefits are achieved.The key technical points and features of the holistic repair technology of hearth lining are systematically described.A multi-field simulation study is carried out.And,the furnace blowout operation technology as well as the relevant technologies are analyzed,such as fast cooling technology for furnace blowout,accurate location of salamander-taphole,digital three-dimensional scanning imaging of hearth lining erosion shape;holistic pouring repair technology of hearth lining,such as selecting of castable for hearth lining,optimization of repaired lin-ing construction,holistic pouring repair technology,reconstruction of the erosion model of the hearth lining,etc.Meanwhile,the key operating factors and the expected application effects of this technology are pointed out.
关键词
大型高炉/炉缸内衬/浇注修复/长寿
Key words
large-sized blast furnace/hearth lining/pouring repair/long campaign life
维普
万方数据