A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Chromium corundum slag-high bauxite composite carbon-free ladle collector nozzle brick and preparation method thereof
The invention discloses a chrome corundum slag-high bauxite composite carbon-free ladle collector nozzle brick and a preparation method thereof, and belongs to the technical field of refractory materials. The collector nozzle comprises the following components in percentage by weight: 35%-50% of chrome corundum slag, 20%-35% of high-alumina bauxite and 35% of a co-grinding powder, and the total percentage is 100%; an additional binding agent comprises 2%-5% of aluminum sulfate and 1%-4% of glycan; the co-grinding powder comprises 14%-18% of mullite fine powder, 5%-8% of alpha-Al2O3 micro powder, 1%-5% of silicon dioxide micro powder and 2%-6% of metal aluminum powder. By introducing industrial waste slag-chrome corundum slag and selecting a novel inorganic-organic complex combination system, a carbon source is not added to a collector nozzle, molten steel is not recarburized in the using process, and the smelting requirements for smelting low-carbon steel and ultra-low carbon steel canbe met.
本发明公开了一种铬刚玉渣‑高铝矾土复合无碳钢包下水口砖及其制备方法，属于耐火材料技术领域。该下水口的组成成分及重量百分比为：铬刚玉渣35％～50％、高铝矾土20％～35％、共磨粉35％，总百分比为100％；外加结合剂：硫酸铝2％～5％、聚糖1％～4％，其中所述的共磨粉包括14％～18％莫来石细粉、5％～8％α‑AlO微粉、1％～5％二氧化硅微粉和2％～6％金属铝粉。通过引入工业废渣‑铬刚玉渣，选用新型无机‑有机复杂结合系统，使下水口不添加碳源，使用过程中对钢水不增碳，可满足冶炼低碳钢、超低碳钢的冶炼要求。
Chromium corundum slag-high bauxite composite carbon-free ladle collector nozzle brick and preparation method thereof
The invention discloses a chrome corundum slag-high bauxite composite carbon-free ladle collector nozzle brick and a preparation method thereof, and belongs to the technical field of refractory materials. The collector nozzle comprises the following components in percentage by weight: 35%-50% of chrome corundum slag, 20%-35% of high-alumina bauxite and 35% of a co-grinding powder, and the total percentage is 100%; an additional binding agent comprises 2%-5% of aluminum sulfate and 1%-4% of glycan; the co-grinding powder comprises 14%-18% of mullite fine powder, 5%-8% of alpha-Al2O3 micro powder, 1%-5% of silicon dioxide micro powder and 2%-6% of metal aluminum powder. By introducing industrial waste slag-chrome corundum slag and selecting a novel inorganic-organic complex combination system, a carbon source is not added to a collector nozzle, molten steel is not recarburized in the using process, and the smelting requirements for smelting low-carbon steel and ultra-low carbon steel canbe met.
本发明公开了一种铬刚玉渣‑高铝矾土复合无碳钢包下水口砖及其制备方法，属于耐火材料技术领域。该下水口的组成成分及重量百分比为：铬刚玉渣35％～50％、高铝矾土20％～35％、共磨粉35％，总百分比为100％；外加结合剂：硫酸铝2％～5％、聚糖1％～4％，其中所述的共磨粉包括14％～18％莫来石细粉、5％～8％α‑AlO微粉、1％～5％二氧化硅微粉和2％～6％金属铝粉。通过引入工业废渣‑铬刚玉渣，选用新型无机‑有机复杂结合系统，使下水口不添加碳源，使用过程中对钢水不增碳，可满足冶炼低碳钢、超低碳钢的冶炼要求。
Chromium corundum slag-high bauxite composite carbon-free ladle collector nozzle brick and preparation method thereof
一种铬刚玉渣-高铝矾土复合无碳钢包下水口砖及其制备方法
ZHANG YUANHONG ( author ) / ZHOU LIANG ( author ) / JI KAI ( author ) / YU XIPING ( author ) / XU KUNBO ( author ) / WANG YUJIAO ( author ) / FANG YANZHEN ( author )
2020-04-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
| European Patent Office | 2023
High-strength carbon-free steel ladle wall corundum brick and application thereof to steel ladle
| European Patent Office | 2024
Carbon-free steel ladle collector nozzle and preparation method thereof
| European Patent Office | 2021
| European Patent Office | 2025