A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-erosion-resistance cast high-zirconium brick and preparation method thereof
The invention discloses a casting high-zirconium brick with high erosion resistance and a preparation method of the casting high-zirconium brick. The refractory brick is prepared from 89.5%-93.9% of desilicication zirconium, 0.2%-1.2% of industrial alumina powder, 2.5%-5.3% of yttrium oxide, 3.5%-9.0% of refined quartz sand and 0.05%-1.0% of sodium carbonate. Wherein the weight percentage ZrO2 content of the desilicated zirconium is greater than or equal to 98.5%, and the weight percentage SiO2 content of the refined quartz sand is greater than or equal to 99.5%. The production method comprises the following steps: burdening; melting the ingredients by using a high-power three-phase electric arc furnace and a high-voltage strong-current melting process, wherein the melting voltage is 300-390V, and the current is 6000-1200A; a graphite or corundum integral sand mold is used as a casting mold, the weight ratio of molding sand to water glass is (90-100): (6-12), the modulus of the water glass is 3.1-3.3, the casting temperature is 2050-2400 DEG C, and the casting speed is 180-1000 kg/min; annealing is conducted after casting, a high-quality bulk heat insulation material is used as a heat preservation medium, and the annealing speed is 0.03-0.14 DEG C/(kg.h); and finally performing cold processing to prepare the refractory brick. The cast high-zirconium brick is low in porosity, high in volume density and high in molten glass corrosion resistance.
本发明公开了一种高抗侵蚀熔铸高锆砖及其制备方法，所述耐火砖配方为脱硅锆89.5～93.9%、工业氧化铝粉0.2～1.2%、氧化钇2.5～5.3%、精石英砂3.5～9.0%和碳酸钠0.05～1.0%；其中脱硅锆重量百分比ZrO2含量≥98.5%，精石英砂重量百分比SiO2含量≥99.5%。其生产方法为先配料；再用高功率三相电弧炉和高压强电流的熔化工艺熔融配料，熔化电压300～390V，电流6000～12000A；然后浇铸成型，铸型用石墨或刚玉整体砂型，重量比为型砂∶水玻璃＝90～100∶6～12，水玻璃模数3.1～3.3，浇铸温度2050～2400℃，浇铸速度180～1000kg/min；浇铸后退火，用优质散状隔热材料作保温介质，退火速度0.03～0.14℃/(kg·h)；最后冷加工制成耐火砖。本发明的熔铸高锆砖气孔率低，体积密度高，且抗玻璃液侵蚀性强。
High-erosion-resistance cast high-zirconium brick and preparation method thereof
The invention discloses a casting high-zirconium brick with high erosion resistance and a preparation method of the casting high-zirconium brick. The refractory brick is prepared from 89.5%-93.9% of desilicication zirconium, 0.2%-1.2% of industrial alumina powder, 2.5%-5.3% of yttrium oxide, 3.5%-9.0% of refined quartz sand and 0.05%-1.0% of sodium carbonate. Wherein the weight percentage ZrO2 content of the desilicated zirconium is greater than or equal to 98.5%, and the weight percentage SiO2 content of the refined quartz sand is greater than or equal to 99.5%. The production method comprises the following steps: burdening; melting the ingredients by using a high-power three-phase electric arc furnace and a high-voltage strong-current melting process, wherein the melting voltage is 300-390V, and the current is 6000-1200A; a graphite or corundum integral sand mold is used as a casting mold, the weight ratio of molding sand to water glass is (90-100): (6-12), the modulus of the water glass is 3.1-3.3, the casting temperature is 2050-2400 DEG C, and the casting speed is 180-1000 kg/min; annealing is conducted after casting, a high-quality bulk heat insulation material is used as a heat preservation medium, and the annealing speed is 0.03-0.14 DEG C/(kg.h); and finally performing cold processing to prepare the refractory brick. The cast high-zirconium brick is low in porosity, high in volume density and high in molten glass corrosion resistance.
本发明公开了一种高抗侵蚀熔铸高锆砖及其制备方法，所述耐火砖配方为脱硅锆89.5～93.9%、工业氧化铝粉0.2～1.2%、氧化钇2.5～5.3%、精石英砂3.5～9.0%和碳酸钠0.05～1.0%；其中脱硅锆重量百分比ZrO2含量≥98.5%，精石英砂重量百分比SiO2含量≥99.5%。其生产方法为先配料；再用高功率三相电弧炉和高压强电流的熔化工艺熔融配料，熔化电压300～390V，电流6000～12000A；然后浇铸成型，铸型用石墨或刚玉整体砂型，重量比为型砂∶水玻璃＝90～100∶6～12，水玻璃模数3.1～3.3，浇铸温度2050～2400℃，浇铸速度180～1000kg/min；浇铸后退火，用优质散状隔热材料作保温介质，退火速度0.03～0.14℃/(kg·h)；最后冷加工制成耐火砖。本发明的熔铸高锆砖气孔率低，体积密度高，且抗玻璃液侵蚀性强。
High-erosion-resistance cast high-zirconium brick and preparation method thereof
一种高抗侵蚀熔铸高锆砖及其制备方法
MAO LIMIN (author) / YANG HAIYUN (author) / WEI HAN (author) / WANG JUNTAO (author) / LIU JIWANG (author) / QING XIAOBIN (author) / LI QINGYUAN (author) / ZHOU ZHANGHUAI (author) / YIN CHAONAN (author) / HU JIANHUI (author)
2023-10-31
Patent
Electronic Resource
Chinese
Anti-erosion zirconium-containing andalusite brick and preparation method thereof
| European Patent Office | 2022
Sintered high-zirconium brick and preparation method thereof
| European Patent Office | 2023
Production process and production equipment of high-zirconium cast brick
| European Patent Office | 2020
Preparation method of sintered compact high-zirconium brick
| European Patent Office | 2022
High-zirconium composite brick and manufacturing method thereof
| European Patent Office | 2024