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Aluminum-titanium composite refractory castable for iron-making blast furnace
The invention discloses an aluminum-titanium composite refractory castable for an iron-making blast furnace, and belongs to the field of refractory materials for iron-making blast furnaces. The aluminum-titanium composite refractory castable can be constructed in a pouring or wet spraying mode, can be used for pouring a ceramic cup, an iron notch and a tuyere lining of a blast furnace hearth, andcan also be used for pouring a cooling wall working end, a refractory lining above a tuyere and the like; and a wet spraying mode can also be adopted for blast furnace spraying lining making. A titanium oxide component on the surface of the castable is reduced into metallic titanium to form titanium carbonitride covering the surface of a product in a specific carbon-containing, nitrogen-rich and oxygen-deficient reducing atmosphere of the iron-making blast furnace, and the high-hardness and high-melting-point titanium carbonitride improves the wear resistance and erosion resistance of the product; moreover, in the specific atmosphere of the blast furnace, the titanium carbonitride covering layer on the surface of the castable can be continuously regenerated after being eroded, so that theservice life of the furnace lining is prolonged, devices such as cooling equipment and a furnace shell are better protected, and the service life of the blast furnace is prolonged.
本发明公开一种炼铁高炉用铝钛复合耐火浇注料，属于炼铁高炉用耐火材料领域。本发明的铝钛复合耐火浇注料可以采用浇注或者湿法喷涂的方式施工，可用于浇注高炉炉缸陶瓷杯、铁口和风口内衬、还可以浇注冷却壁工作端、浇制风口以上的耐火内衬等；也可以采用湿法喷涂方式进行高炉喷涂造衬。在炼铁高炉特定的含碳、富氮和缺氧的还原性气氛下，本浇注料表面的氧化钛组分将被还原成金属钛进而形成覆盖在制品表面的碳氮化钛，这些高硬度、高熔点的碳氮化钛提高了制品的耐磨性和耐侵蚀性能，而且，在高炉特定气氛下，浇注料表面的碳氮化钛覆盖层可以在被侵蚀后不断新生，从而延长炉衬的使用周期，更好地保护冷却设备、炉壳等装置，进而延长高炉寿命。
Aluminum-titanium composite refractory castable for iron-making blast furnace
The invention discloses an aluminum-titanium composite refractory castable for an iron-making blast furnace, and belongs to the field of refractory materials for iron-making blast furnaces. The aluminum-titanium composite refractory castable can be constructed in a pouring or wet spraying mode, can be used for pouring a ceramic cup, an iron notch and a tuyere lining of a blast furnace hearth, andcan also be used for pouring a cooling wall working end, a refractory lining above a tuyere and the like; and a wet spraying mode can also be adopted for blast furnace spraying lining making. A titanium oxide component on the surface of the castable is reduced into metallic titanium to form titanium carbonitride covering the surface of a product in a specific carbon-containing, nitrogen-rich and oxygen-deficient reducing atmosphere of the iron-making blast furnace, and the high-hardness and high-melting-point titanium carbonitride improves the wear resistance and erosion resistance of the product; moreover, in the specific atmosphere of the blast furnace, the titanium carbonitride covering layer on the surface of the castable can be continuously regenerated after being eroded, so that theservice life of the furnace lining is prolonged, devices such as cooling equipment and a furnace shell are better protected, and the service life of the blast furnace is prolonged.
本发明公开一种炼铁高炉用铝钛复合耐火浇注料，属于炼铁高炉用耐火材料领域。本发明的铝钛复合耐火浇注料可以采用浇注或者湿法喷涂的方式施工，可用于浇注高炉炉缸陶瓷杯、铁口和风口内衬、还可以浇注冷却壁工作端、浇制风口以上的耐火内衬等；也可以采用湿法喷涂方式进行高炉喷涂造衬。在炼铁高炉特定的含碳、富氮和缺氧的还原性气氛下，本浇注料表面的氧化钛组分将被还原成金属钛进而形成覆盖在制品表面的碳氮化钛，这些高硬度、高熔点的碳氮化钛提高了制品的耐磨性和耐侵蚀性能，而且，在高炉特定气氛下，浇注料表面的碳氮化钛覆盖层可以在被侵蚀后不断新生，从而延长炉衬的使用周期，更好地保护冷却设备、炉壳等装置，进而延长高炉寿命。
Aluminum-titanium composite refractory castable for iron-making blast furnace
一种炼铁高炉用铝钛复合耐火浇注料
XU RUITU (author) / SUN JIALIN (author) / XU XIAOHAN (author) / HE RUSHENG (author) / CAO YONGGUO (author) / WU MIN (author)
2021-02-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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