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Silicon nitride composite high-thermal-conductivity castable
The invention discloses a silicon nitride composite high-thermal-conductivity castable. The castable is prepared from the following raw materials in proportion: fused alumina, kyanite, silicon carbide, silicon nitride, silica powder, activated alumina micropowder, spherical asphalt, carbon black powder, carbon resin powder, a carbon dispersant, an antioxidant, organic fibers and an explosion-proofagent. During construction, a binding agent silica sol or pure calcium aluminate cement is added. The silicon nitride composite high-thermal-conductivity castable is prepared based on research on a lining material of a cooling type hearth and according to a scientific formula proposed and determined in condiseration of the advantages of various materials, integrates the advantages of an aluminumoxide material, a silicon carbide material and a carbon-containing material, adapts to a cooling type blast furnace or an ore-smelting electric furnace and a hearth lining working layer under similarworking conditions, and can bear the working conditions such as impact of materials entering the furnace and pressure in the furnace; and heat is effectively conducted via the castable, so a molten iron solidification isotherm of 1150 DEG C is formed on the contact interface of a refractory material of a working layer and slag iron, the advantages of the cooling type hearth structure are truly exerted, and the service life of the hearth is prolonged.
本发明公开了一种氮化硅复合高导热浇注料，是由原料电熔刚玉、蓝晶石、碳化硅、氮化硅、硅微粉、活性氧化铝微粉、球状沥青、碳黑粉、碳树脂粉、碳分散剂、抗氧化剂、有机纤维、防爆剂按比例配制而成；施工时外加结合剂硅溶胶或纯铝酸钙水泥。本发明基于对冷却型炉缸内衬材料的研究，综合了各种材料的优点而提出并确定的配方科学，配制的氮化硅复合高导热浇注料富集了氧化铝材料、碳化硅材料、含碳材料的优点，适应冷却型高炉或矿热电炉及类似工况条件的炉缸内衬工作层，能够承受入炉物料的冲击、炉内压力等工作状况；有效传导热量，使工作层耐火材料与渣铁接触的界面形成1150℃的铁水凝固等温线，真正发挥冷却型炉缸结构的优势，延长了炉缸寿命。
Silicon nitride composite high-thermal-conductivity castable
The invention discloses a silicon nitride composite high-thermal-conductivity castable. The castable is prepared from the following raw materials in proportion: fused alumina, kyanite, silicon carbide, silicon nitride, silica powder, activated alumina micropowder, spherical asphalt, carbon black powder, carbon resin powder, a carbon dispersant, an antioxidant, organic fibers and an explosion-proofagent. During construction, a binding agent silica sol or pure calcium aluminate cement is added. The silicon nitride composite high-thermal-conductivity castable is prepared based on research on a lining material of a cooling type hearth and according to a scientific formula proposed and determined in condiseration of the advantages of various materials, integrates the advantages of an aluminumoxide material, a silicon carbide material and a carbon-containing material, adapts to a cooling type blast furnace or an ore-smelting electric furnace and a hearth lining working layer under similarworking conditions, and can bear the working conditions such as impact of materials entering the furnace and pressure in the furnace; and heat is effectively conducted via the castable, so a molten iron solidification isotherm of 1150 DEG C is formed on the contact interface of a refractory material of a working layer and slag iron, the advantages of the cooling type hearth structure are truly exerted, and the service life of the hearth is prolonged.
本发明公开了一种氮化硅复合高导热浇注料，是由原料电熔刚玉、蓝晶石、碳化硅、氮化硅、硅微粉、活性氧化铝微粉、球状沥青、碳黑粉、碳树脂粉、碳分散剂、抗氧化剂、有机纤维、防爆剂按比例配制而成；施工时外加结合剂硅溶胶或纯铝酸钙水泥。本发明基于对冷却型炉缸内衬材料的研究，综合了各种材料的优点而提出并确定的配方科学，配制的氮化硅复合高导热浇注料富集了氧化铝材料、碳化硅材料、含碳材料的优点，适应冷却型高炉或矿热电炉及类似工况条件的炉缸内衬工作层，能够承受入炉物料的冲击、炉内压力等工作状况；有效传导热量，使工作层耐火材料与渣铁接触的界面形成1150℃的铁水凝固等温线，真正发挥冷却型炉缸结构的优势，延长了炉缸寿命。
Silicon nitride composite high-thermal-conductivity castable
氮化硅复合高导热浇注料
DING FENGSHOU (author) / CHAO SHANGKUI (author)
2020-08-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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