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A platform for research: civil engineering, architecture and urbanism
Blast furnace tapping main channel castable and preparation method thereof
The invention relates to a blast furnace tapping main channel castable, which is prepared from the following raw materials in parts by mass: 45 to 55 parts of compact corundum, 12 to 25 parts of white corundum, 12 to 20 parts of silicon carbide, 3 to 6 parts of alpha-Al2O3 powder, 2 to 6 parts of rho-Al2O3 powder, 5 to 10 parts of composite graphite particles, 0.5 to 0.8 part of aluminum nitride powder, 1 to 5 parts of antioxidants, 0.1 to 0.3 part of explosion-proof fibers and 0.1 to 0.5 part of water reducing agents. The composite graphite particles are C (at) MgO (at) Al2O3 (at) SiO2 microsphere particles formed by calcining a C (at) Mg (OH) 2 (at) Al (OH) 3 (at) SiO2 microsphere precursor in an inert atmosphere, wherein the C (at) Mg (OH) 2 (at) Al (OH) 3 (at) SiO2 microsphere precursor is formed by carrying out wet granulation on graphite, magnesium sol, aluminum sol and silica sol; the antioxidant is a compound of magnesium carbide, boron carbide and aluminum powder. The prepared castable for the main runner of the tapping runner has excellent erosion resistance, thermal shock resistance and oxidation resistance.
本发明涉及一种高炉出铁主沟浇注料，包括以下质量份的原料：致密刚玉45～55份，白刚玉12～25份，碳化硅12～20份，α‑Al2O3粉3～6份，ρ‑Al2O3粉2～6份，复合石墨颗粒5～10份，氮化铝粉0.5～0.8份，抗氧剂1～5份，防爆纤维0.1～0.3份，减水剂0.1～0.5份；所述复合石墨颗粒为石墨、镁溶胶、铝溶胶、硅溶胶经湿法制粒形成C@Mg(OH)2@Al(OH)3@SiO2微球前驱体在惰性氛围下煅烧形成的C@MgO@Al2O3@SiO2微球颗粒；所述抗氧剂为碳化镁、碳化硼、铝粉的复配。本发明制备的出铁沟主沟浇注料具有优异的抗侵蚀能力、抗热震性和抗氧化性能。
Blast furnace tapping main channel castable and preparation method thereof
The invention relates to a blast furnace tapping main channel castable, which is prepared from the following raw materials in parts by mass: 45 to 55 parts of compact corundum, 12 to 25 parts of white corundum, 12 to 20 parts of silicon carbide, 3 to 6 parts of alpha-Al2O3 powder, 2 to 6 parts of rho-Al2O3 powder, 5 to 10 parts of composite graphite particles, 0.5 to 0.8 part of aluminum nitride powder, 1 to 5 parts of antioxidants, 0.1 to 0.3 part of explosion-proof fibers and 0.1 to 0.5 part of water reducing agents. The composite graphite particles are C (at) MgO (at) Al2O3 (at) SiO2 microsphere particles formed by calcining a C (at) Mg (OH) 2 (at) Al (OH) 3 (at) SiO2 microsphere precursor in an inert atmosphere, wherein the C (at) Mg (OH) 2 (at) Al (OH) 3 (at) SiO2 microsphere precursor is formed by carrying out wet granulation on graphite, magnesium sol, aluminum sol and silica sol; the antioxidant is a compound of magnesium carbide, boron carbide and aluminum powder. The prepared castable for the main runner of the tapping runner has excellent erosion resistance, thermal shock resistance and oxidation resistance.
本发明涉及一种高炉出铁主沟浇注料，包括以下质量份的原料：致密刚玉45～55份，白刚玉12～25份，碳化硅12～20份，α‑Al2O3粉3～6份，ρ‑Al2O3粉2～6份，复合石墨颗粒5～10份，氮化铝粉0.5～0.8份，抗氧剂1～5份，防爆纤维0.1～0.3份，减水剂0.1～0.5份；所述复合石墨颗粒为石墨、镁溶胶、铝溶胶、硅溶胶经湿法制粒形成C@Mg(OH)2@Al(OH)3@SiO2微球前驱体在惰性氛围下煅烧形成的C@MgO@Al2O3@SiO2微球颗粒；所述抗氧剂为碳化镁、碳化硼、铝粉的复配。本发明制备的出铁沟主沟浇注料具有优异的抗侵蚀能力、抗热震性和抗氧化性能。
Blast furnace tapping main channel castable and preparation method thereof
一种高炉出铁主沟浇注料及其制备方法
XU LIN (author) / SHE YAFENG (author) / WU LEI (author) / ZHANG ZHICHENG (author) / GUAN PING (author)
2024-11-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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