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Magnesium-aluminum-chromium spinel castable and preparation method thereof
The invention relates to the technical field of refractory materials, and discloses a magnesium-aluminum-chromium spinel castable and a preparation method thereof.The magnesium-aluminum-chromium spinel castable is prepared from, by weight, 50%-55% of fused magnesia, 22%-25% of Barstein chrome ore, 5%-8% of alpha-Al2O3 powder, 10% of magnesium-aluminum spinel, 3% of fused chromium oxide green, 3%-4% of silica powder and 5% of additives, the fused magnesite comprises the following components in percentage by weight: 10 to 15 percent of fused magnesite with particle size of 5 to 3mm, 16 to 18 percent of fused magnesite with particle size of 3 to 1mm, 8 to 10 percent of fused magnesite with particle size of 1 to 0mm and 15 to 20 percent of fused magnesite with particle size of 200 meshes. According to the magnesium-aluminum-chromium spinel castable and the preparation method thereof, the magnesium-aluminum-chromium spinel castable is uniform in melting loss, free of internal oxidation phenomenon, small in oxidation weight loss rate and good in slag corrosion resistance, oxidation resistance and scouring resistance in the test process of a 120T matte PS converter in the Zijinbronze industry, and the average service life of the magnesium-aluminum-chromium spinel castable is 150 furnaces.
本发明涉及耐火材料技术领域，且公开了一种镁铝铬尖晶石质浇注料及其制备方法，该镁铝铬尖晶石质浇注料由下述重量百分比的原料制成：电熔镁砂50～55％、巴基斯坦铬矿22～25％、α‑Al2O3粉5～8％、镁铝尖晶石10％、电熔氧化铬绿3％、硅微粉3～4％、添加剂5％，所述电熔镁砂的粒度组成为：5～3mm电熔镁砂10～15％、3～1mm电熔镁砂16～18％、1～0mm电熔镁砂8～10％、200目电熔镁砂15～20％。该镁铝铬尖晶石质浇注料及其制备方法，通过该镁铝铬尖晶石质浇注料在紫金铜业120T冰铜PS转炉试验过程中，熔损均匀，且无内部氧化现象，氧化失重率小，表现出良好的抗熔渣侵蚀性能、抗氧化性能及抗冲刷性能，平均使用炉龄在150炉。
Magnesium-aluminum-chromium spinel castable and preparation method thereof
The invention relates to the technical field of refractory materials, and discloses a magnesium-aluminum-chromium spinel castable and a preparation method thereof.The magnesium-aluminum-chromium spinel castable is prepared from, by weight, 50%-55% of fused magnesia, 22%-25% of Barstein chrome ore, 5%-8% of alpha-Al2O3 powder, 10% of magnesium-aluminum spinel, 3% of fused chromium oxide green, 3%-4% of silica powder and 5% of additives, the fused magnesite comprises the following components in percentage by weight: 10 to 15 percent of fused magnesite with particle size of 5 to 3mm, 16 to 18 percent of fused magnesite with particle size of 3 to 1mm, 8 to 10 percent of fused magnesite with particle size of 1 to 0mm and 15 to 20 percent of fused magnesite with particle size of 200 meshes. According to the magnesium-aluminum-chromium spinel castable and the preparation method thereof, the magnesium-aluminum-chromium spinel castable is uniform in melting loss, free of internal oxidation phenomenon, small in oxidation weight loss rate and good in slag corrosion resistance, oxidation resistance and scouring resistance in the test process of a 120T matte PS converter in the Zijinbronze industry, and the average service life of the magnesium-aluminum-chromium spinel castable is 150 furnaces.
本发明涉及耐火材料技术领域，且公开了一种镁铝铬尖晶石质浇注料及其制备方法，该镁铝铬尖晶石质浇注料由下述重量百分比的原料制成：电熔镁砂50～55％、巴基斯坦铬矿22～25％、α‑Al2O3粉5～8％、镁铝尖晶石10％、电熔氧化铬绿3％、硅微粉3～4％、添加剂5％，所述电熔镁砂的粒度组成为：5～3mm电熔镁砂10～15％、3～1mm电熔镁砂16～18％、1～0mm电熔镁砂8～10％、200目电熔镁砂15～20％。该镁铝铬尖晶石质浇注料及其制备方法，通过该镁铝铬尖晶石质浇注料在紫金铜业120T冰铜PS转炉试验过程中，熔损均匀，且无内部氧化现象，氧化失重率小，表现出良好的抗熔渣侵蚀性能、抗氧化性能及抗冲刷性能，平均使用炉龄在150炉。
Magnesium-aluminum-chromium spinel castable and preparation method thereof
一种镁铝铬尖晶石质浇注料及其制备方法
LIANG QINJUN (author) / LI YUANJIN (author) / WANG XUYUAN (author) / MENG LINGXIAO (author) / HOU DAN (author) / GAO HONGXING (author) / ZHANG YAQUAN (author)
2022-11-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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