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Efficient anti-erosion steel ladle gunning mix and preparation method thereof
The invention relates to the technical field of steel ladle gunning materials, in particular to an efficient anti-erosion steel ladle gunning material and a preparation method thereof.The efficient anti-erosion steel ladle gunning material comprises 50-65 wt% of refractory aggregate and 35-50 wt% of refractory fine powder, and the granularity of the refractory fine powder is not larger than 0.074 mm; the mass ratio of the tabular corundum fine powder to the fused spinel fine powder to the fused magnesia fine powder to the high-activity binding agent in the refractory fine powder is (5-13): (1-6): (1-2): 1; wherein in terms of the total amount of the high-activity binding agent, the content of Al2O3 in the high-activity binding agent is 99.3 to 99.7 wt%, and the content of Na2O in the high-activity binding agent is 0.3 to 0.4 wt%; the content of microcrystalline aluminum oxide in the high-activity binding agent is more than 75 wt%, the particle size of the microcrystalline aluminum oxide is less than 0.5 mu m, and the BET of the high-activity binding agent is 10-20 m < 2 >/g. The high temperature resistance of the matrix part of the gunning material can be efficiently improved, the durability of the gunning material is improved, and the service life of the gunning material is prolonged.
本发明涉及钢包喷补料技术领域，具体涉及一种高效抗侵蚀钢包喷补料及其制备方法，包括50‑65wt%的耐火骨料和35‑50wt%的耐火细粉，耐火细粉的粒度不大于0.074mm；所述耐火细粉中板状刚玉细粉、电熔尖晶石细粉、电熔镁砂细粉和高活性结合剂的质量比为5‑13:1‑6:1‑2:1；其中，以高活性结合剂总量计，所述高活性结合剂中Al2O3在99.3‑99.7wt%，Na2O在0.3‑0.4wt%；且所述高活性结合剂中微晶氧化铝的含量在75wt%以上，微晶氧化铝的粒度小于0.5μm，高活性结合剂的BET为10‑20 m2/g。本发明能高效改善喷补料基质部分的耐高温性能，并提升喷补料的耐用性与使用寿命。
Efficient anti-erosion steel ladle gunning mix and preparation method thereof
The invention relates to the technical field of steel ladle gunning materials, in particular to an efficient anti-erosion steel ladle gunning material and a preparation method thereof.The efficient anti-erosion steel ladle gunning material comprises 50-65 wt% of refractory aggregate and 35-50 wt% of refractory fine powder, and the granularity of the refractory fine powder is not larger than 0.074 mm; the mass ratio of the tabular corundum fine powder to the fused spinel fine powder to the fused magnesia fine powder to the high-activity binding agent in the refractory fine powder is (5-13): (1-6): (1-2): 1; wherein in terms of the total amount of the high-activity binding agent, the content of Al2O3 in the high-activity binding agent is 99.3 to 99.7 wt%, and the content of Na2O in the high-activity binding agent is 0.3 to 0.4 wt%; the content of microcrystalline aluminum oxide in the high-activity binding agent is more than 75 wt%, the particle size of the microcrystalline aluminum oxide is less than 0.5 mu m, and the BET of the high-activity binding agent is 10-20 m < 2 >/g. The high temperature resistance of the matrix part of the gunning material can be efficiently improved, the durability of the gunning material is improved, and the service life of the gunning material is prolonged.
本发明涉及钢包喷补料技术领域，具体涉及一种高效抗侵蚀钢包喷补料及其制备方法，包括50‑65wt%的耐火骨料和35‑50wt%的耐火细粉，耐火细粉的粒度不大于0.074mm；所述耐火细粉中板状刚玉细粉、电熔尖晶石细粉、电熔镁砂细粉和高活性结合剂的质量比为5‑13:1‑6:1‑2:1；其中，以高活性结合剂总量计，所述高活性结合剂中Al2O3在99.3‑99.7wt%，Na2O在0.3‑0.4wt%；且所述高活性结合剂中微晶氧化铝的含量在75wt%以上，微晶氧化铝的粒度小于0.5μm，高活性结合剂的BET为10‑20 m2/g。本发明能高效改善喷补料基质部分的耐高温性能，并提升喷补料的耐用性与使用寿命。
Efficient anti-erosion steel ladle gunning mix and preparation method thereof
一种高效抗侵蚀钢包喷补料及其制备方法
LI ZHIGANG (author) / WU CHANGZHOU (author) / LU HONGMAO (author)
2023-04-04
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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