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Antioxidant castable for main iron runner of blast furnace
The invention provides an antioxidant castable for a main iron runner of a blast furnace. Comprising the following raw materials: fused compact corundum, fused brown corundum, black silicon carbide, black silicon carbide micro powder, porous mullite, silicon nitride combined silicon carbide, activated aluminum oxide micro powder, andalusite, black silicon carbide micro powder, submicron silicon micro powder, pure calcium aluminate cement, an antioxidant, anti-burst fibers and a water reducing dispersant. According to the antioxidant castable disclosed by the invention, selected high-purity raw materials are adopted, the submicron silicon micropowder and the black silicon carbide micropowder are introduced, and due to the characteristics of ultrafine granularity, excellent dispersity, large specific surface area and the like, the submicron silicon micropowder and the black silicon carbide micropowder are mutually filled with coarse, medium and fine structures of particles of other materials in the castable; the combination and sintering strength of the castable under the medium-low temperature baking condition can be effectively improved, the compactness of the tapping channel castable is obviously enhanced, the oxidation resistance of the tapping channel castable is improved, the thermal shock stability in the high-temperature state can be effectively guaranteed, the high-temperature breaking strength and wear resistance are stably improved, and the service life of the tapping channel castable is stably prolonged.
本发明提供了一种高炉主铁沟用抗氧化浇注料，包括以下种类的原料：电熔致密刚玉、电熔棕刚玉、黑碳化硅、黑碳化硅微粉、多孔莫来石、氮化硅结合碳化硅、活性氧化铝微粉、红柱石、黑碳化硅微粉、亚微米硅微粉、纯铝酸钙水泥、抗氧化剂、防爆裂纤维、减水分散剂。本发明所述的抗氧化浇注料，采用精选高纯原材料，通过引入亚微米硅微粉和黑碳化硅微粉，由于其粒度超细分散性优良，比表面积大等特性，在浇注料中与其它材料颗粒粗中细结构互相填充，可有效提升浇注料在中低温烘烤条件下结合、烧结强度大幅度提升，明显增强了出铁沟浇注料的致密度、改善了其抗氧化性、可有效保障其中高温状态下的热震稳定性，稳步提高了高温抗折强度，耐磨性能及使用寿命。
Antioxidant castable for main iron runner of blast furnace
The invention provides an antioxidant castable for a main iron runner of a blast furnace. Comprising the following raw materials: fused compact corundum, fused brown corundum, black silicon carbide, black silicon carbide micro powder, porous mullite, silicon nitride combined silicon carbide, activated aluminum oxide micro powder, andalusite, black silicon carbide micro powder, submicron silicon micro powder, pure calcium aluminate cement, an antioxidant, anti-burst fibers and a water reducing dispersant. According to the antioxidant castable disclosed by the invention, selected high-purity raw materials are adopted, the submicron silicon micropowder and the black silicon carbide micropowder are introduced, and due to the characteristics of ultrafine granularity, excellent dispersity, large specific surface area and the like, the submicron silicon micropowder and the black silicon carbide micropowder are mutually filled with coarse, medium and fine structures of particles of other materials in the castable; the combination and sintering strength of the castable under the medium-low temperature baking condition can be effectively improved, the compactness of the tapping channel castable is obviously enhanced, the oxidation resistance of the tapping channel castable is improved, the thermal shock stability in the high-temperature state can be effectively guaranteed, the high-temperature breaking strength and wear resistance are stably improved, and the service life of the tapping channel castable is stably prolonged.
本发明提供了一种高炉主铁沟用抗氧化浇注料，包括以下种类的原料：电熔致密刚玉、电熔棕刚玉、黑碳化硅、黑碳化硅微粉、多孔莫来石、氮化硅结合碳化硅、活性氧化铝微粉、红柱石、黑碳化硅微粉、亚微米硅微粉、纯铝酸钙水泥、抗氧化剂、防爆裂纤维、减水分散剂。本发明所述的抗氧化浇注料，采用精选高纯原材料，通过引入亚微米硅微粉和黑碳化硅微粉，由于其粒度超细分散性优良，比表面积大等特性，在浇注料中与其它材料颗粒粗中细结构互相填充，可有效提升浇注料在中低温烘烤条件下结合、烧结强度大幅度提升，明显增强了出铁沟浇注料的致密度、改善了其抗氧化性、可有效保障其中高温状态下的热震稳定性，稳步提高了高温抗折强度，耐磨性能及使用寿命。
Antioxidant castable for main iron runner of blast furnace
一种高炉主铁沟用抗氧化浇注料
JIANG ZHISHAN (author) / HUA SONG (author) / HUANG XIUGUANG (author) / WANG JIAN (author) / JIANG CHENGCHAO (author) / LI QINGDA (author) / SUN ZHIHONG (author) / ZHOU XIANQIANG (author)
2023-11-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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