Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-thermal-conductivity corrosion-resistant blast furnace self-protection carbon brick and preparation method thereof
The invention relates to a high-thermal-conductivity corrosion-resistant blast furnace self-protection carbon brick which comprises the following raw materials in percentage by weight: 70-79% of graphitized anthracite, 8-12% of metal silicon powder, 6-10% of Al2O3 powder, 4-8% of material with titanium content of not less than 35%, 3-7% of silicon carbide powder and 8-14% of thermosetting phenolicresin. The method comprises the following steps: crushing and screening graphitized anthracite; uniformly mixing graphitized anthracite with various granularities, metal silicon powder, Al2O3 powder,a material containing not less than 35wt% of titanium and silicon carbide powder according to particle size requirements and content requirements; adding thermosetting phenolic resin and conducting uniform stirring; conducting mechanical forming; conducting roasting; preserving heat; and conducting machining. The heat conductivity coefficient of the blast furnace carbon brick is increased from 16W/mK to not less than 25W/mK, and the average pore diameter is less than 1 [mu]m; and due to the fact that the titanium-containing material is added into the carbon brick, Ti(C,N) is formed in situ, the vanadium-titanium ore furnace protection effect at the last stage of the blast furnace is achieved, the blast furnace carbon brick is protected, the service life of the blast furnace is prolonged,and the preparation process is simple.
一种高导热耐侵蚀高炉自护炭砖，其原料组成及wt%含量：石墨化无烟煤70～79%，金属硅粉8～12%，Al2O3粉6～10%，含钛不低于35%的物料4～8%，碳化硅粉3～7%，外加8～14%热固性酚醛树脂；步骤：将石墨化无烟煤粉粹并筛分；将各级粒度石墨化无烟煤、金属硅粉、Al2O3粉、含钛不低于35wt%的物料、碳化硅粉按照粒度要求及含量要求混合均匀；加入热固性酚醛树脂并搅拌均匀；机械成型；焙烧；保温；机械加工。本发明高炉炭砖导热系数由16W/mK提高到不低于25W/mK，平均孔径<1μm；由于在炭砖中加入含钛物料，在原位形成了Ti(C,N)，起到高炉末期钒钛矿护炉作用，保护了高炉炭砖，延长高炉寿命，并且制备工艺简单。
High-thermal-conductivity corrosion-resistant blast furnace self-protection carbon brick and preparation method thereof
The invention relates to a high-thermal-conductivity corrosion-resistant blast furnace self-protection carbon brick which comprises the following raw materials in percentage by weight: 70-79% of graphitized anthracite, 8-12% of metal silicon powder, 6-10% of Al2O3 powder, 4-8% of material with titanium content of not less than 35%, 3-7% of silicon carbide powder and 8-14% of thermosetting phenolicresin. The method comprises the following steps: crushing and screening graphitized anthracite; uniformly mixing graphitized anthracite with various granularities, metal silicon powder, Al2O3 powder,a material containing not less than 35wt% of titanium and silicon carbide powder according to particle size requirements and content requirements; adding thermosetting phenolic resin and conducting uniform stirring; conducting mechanical forming; conducting roasting; preserving heat; and conducting machining. The heat conductivity coefficient of the blast furnace carbon brick is increased from 16W/mK to not less than 25W/mK, and the average pore diameter is less than 1 [mu]m; and due to the fact that the titanium-containing material is added into the carbon brick, Ti(C,N) is formed in situ, the vanadium-titanium ore furnace protection effect at the last stage of the blast furnace is achieved, the blast furnace carbon brick is protected, the service life of the blast furnace is prolonged,and the preparation process is simple.
一种高导热耐侵蚀高炉自护炭砖，其原料组成及wt%含量：石墨化无烟煤70～79%，金属硅粉8～12%，Al2O3粉6～10%，含钛不低于35%的物料4～8%，碳化硅粉3～7%，外加8～14%热固性酚醛树脂；步骤：将石墨化无烟煤粉粹并筛分；将各级粒度石墨化无烟煤、金属硅粉、Al2O3粉、含钛不低于35wt%的物料、碳化硅粉按照粒度要求及含量要求混合均匀；加入热固性酚醛树脂并搅拌均匀；机械成型；焙烧；保温；机械加工。本发明高炉炭砖导热系数由16W/mK提高到不低于25W/mK，平均孔径<1μm；由于在炭砖中加入含钛物料，在原位形成了Ti(C,N)，起到高炉末期钒钛矿护炉作用，保护了高炉炭砖，延长高炉寿命，并且制备工艺简单。
High-thermal-conductivity corrosion-resistant blast furnace self-protection carbon brick and preparation method thereof
一种高导热耐侵蚀高炉自护炭砖及制备方法
04.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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