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A platform for research: civil engineering, architecture and urbanism
High-strength light castable for heat preservation of steel ladle
The invention discloses a high-strength light castable for heat preservation of a steel ladle. The high-strength light castable is prepared from the following raw materials in percentage by mass: 45-60% of mullite hollow spheres, 5-10% of expanded perlite, 5-10% of polycrystalline mullite fibers, 5-10% of magnesium oxide fine powder, 1-5% of metal aluminum powder, 1-5% of combined clay, 2-8% of rho-Al2O3 micro powder, 1-5% of sodium lignin sulfonate and 1-4% of SiO2 micro powder. The castable provided by the invention is high in strength, low in heat conductivity and good in thermal shock resistance stability, can be used as a castable for a permanent layer of a steel ladle, can effectively reduce the temperature of a steel ladle shell, plays a role in heat preservation of the steel ladle, and can reduce the temperature of molten steel tapped by a converter, energy consumption and cost per ton of steel.
本发明公开了一种钢包保温高强度轻质浇注料，由以下质量百分比的原料组成：莫来石空心球45～60％、膨胀珍珠岩5～10％、多晶莫来石纤维5～10％、氧化镁细粉5～10％、金属铝粉1～5％、结合黏土1～5％、ρ‑Al2O3微粉2～8％、木质素磺酸钠1～5％、SiO2微粉1～4％。本发明提供的浇注料强度高、热导率低，抗热震稳定性良好，可用于钢包永久层浇注料，能有效降低钢包壳温度，起到钢包保温作用，能降低转炉出钢钢水温度，降低能源消耗，降低吨钢成本。
High-strength light castable for heat preservation of steel ladle
The invention discloses a high-strength light castable for heat preservation of a steel ladle. The high-strength light castable is prepared from the following raw materials in percentage by mass: 45-60% of mullite hollow spheres, 5-10% of expanded perlite, 5-10% of polycrystalline mullite fibers, 5-10% of magnesium oxide fine powder, 1-5% of metal aluminum powder, 1-5% of combined clay, 2-8% of rho-Al2O3 micro powder, 1-5% of sodium lignin sulfonate and 1-4% of SiO2 micro powder. The castable provided by the invention is high in strength, low in heat conductivity and good in thermal shock resistance stability, can be used as a castable for a permanent layer of a steel ladle, can effectively reduce the temperature of a steel ladle shell, plays a role in heat preservation of the steel ladle, and can reduce the temperature of molten steel tapped by a converter, energy consumption and cost per ton of steel.
本发明公开了一种钢包保温高强度轻质浇注料，由以下质量百分比的原料组成：莫来石空心球45～60％、膨胀珍珠岩5～10％、多晶莫来石纤维5～10％、氧化镁细粉5～10％、金属铝粉1～5％、结合黏土1～5％、ρ‑Al2O3微粉2～8％、木质素磺酸钠1～5％、SiO2微粉1～4％。本发明提供的浇注料强度高、热导率低，抗热震稳定性良好，可用于钢包永久层浇注料，能有效降低钢包壳温度，起到钢包保温作用，能降低转炉出钢钢水温度，降低能源消耗，降低吨钢成本。
High-strength light castable for heat preservation of steel ladle
一种钢包保温高强度轻质浇注料
ZOU LONG (author) / LIU MENG (author) / ZHANG CHANGNING (author) / YE TUMING (author)
2024-12-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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