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Low-cost magnesium-zirconium-carbon converter tapping hole brick and preparation method thereof
The invention discloses a low-cost magnesium-zirconium-carbon converter tapping hole brick and a preparation method thereof, and belongs to the technical field of refractory materials. The converter tapping hole brick comprises granular aggregate, co-grinding powder, a binding agent and crystalline flake graphite, the granular aggregate comprises a high-quality recycled magnesia carbon material, 98 macrocrystalline magnesia particles and fused magnesia-zircon sand particles, wherein the high-quality recycled magnesia carbon material is a recycled magnesia-carbon brick, the particle size of the co-grinding powder is 0-0.074 mm, and the co-grinding powder comprises 98 macrocrystalline magnesia powder, electric smelting magnesium-zirconium sand powder, metal aluminum powder, boron carbide, high-temperature asphalt powder and Al-Mg alloy powder; and the binding agent is phenolic resin. The preparation method comprises the following steps: preparing the co-grinding powder, preparing the granular aggregate, performing mixing, molding and drying, preparing the tapping hole adhesive, and performing reassembling, inspecting and packaging to obtain the finished product. On the premise that the service life of the tapping hole is not shortened, the overall cost of the tapping hole brick is greatly reduced, and meanwhile, the thermal shock resistance and the erosion resistance of the tapping hole brick are improved.
本发明公开了一种低成本镁锆碳质转炉出钢口砖及制备方法，属于耐火材料技术领域。转炉出钢口砖包括颗粒骨料、共磨粉、结合剂和鳞片石墨，所述颗粒骨料包括优质再生镁碳料、98大结晶镁砂颗粒和电熔镁锆砂颗粒，所述优质再生镁碳料为回收利用的镁碳砖，所述共磨粉的粒径为0～0.074mm，包括98大结晶镁砂粉、电熔镁锆砂粉、金属铝粉、碳化硼、高温沥青粉和Al‑Mg合金粉，所述结合剂为酚醛树脂；制备方法包括：共磨粉的制备、颗粒骨料的制备、混料、成型、干燥、出钢口粘接剂准备，再组装、检验、包装即可得到成品。本发明在不降低出钢口寿命的前提下，大幅度降低了出钢口砖的整体成本，同时提高了出钢口砖抗热震性能和抗侵蚀性能。
Low-cost magnesium-zirconium-carbon converter tapping hole brick and preparation method thereof
The invention discloses a low-cost magnesium-zirconium-carbon converter tapping hole brick and a preparation method thereof, and belongs to the technical field of refractory materials. The converter tapping hole brick comprises granular aggregate, co-grinding powder, a binding agent and crystalline flake graphite, the granular aggregate comprises a high-quality recycled magnesia carbon material, 98 macrocrystalline magnesia particles and fused magnesia-zircon sand particles, wherein the high-quality recycled magnesia carbon material is a recycled magnesia-carbon brick, the particle size of the co-grinding powder is 0-0.074 mm, and the co-grinding powder comprises 98 macrocrystalline magnesia powder, electric smelting magnesium-zirconium sand powder, metal aluminum powder, boron carbide, high-temperature asphalt powder and Al-Mg alloy powder; and the binding agent is phenolic resin. The preparation method comprises the following steps: preparing the co-grinding powder, preparing the granular aggregate, performing mixing, molding and drying, preparing the tapping hole adhesive, and performing reassembling, inspecting and packaging to obtain the finished product. On the premise that the service life of the tapping hole is not shortened, the overall cost of the tapping hole brick is greatly reduced, and meanwhile, the thermal shock resistance and the erosion resistance of the tapping hole brick are improved.
本发明公开了一种低成本镁锆碳质转炉出钢口砖及制备方法，属于耐火材料技术领域。转炉出钢口砖包括颗粒骨料、共磨粉、结合剂和鳞片石墨，所述颗粒骨料包括优质再生镁碳料、98大结晶镁砂颗粒和电熔镁锆砂颗粒，所述优质再生镁碳料为回收利用的镁碳砖，所述共磨粉的粒径为0～0.074mm，包括98大结晶镁砂粉、电熔镁锆砂粉、金属铝粉、碳化硼、高温沥青粉和Al‑Mg合金粉，所述结合剂为酚醛树脂；制备方法包括：共磨粉的制备、颗粒骨料的制备、混料、成型、干燥、出钢口粘接剂准备，再组装、检验、包装即可得到成品。本发明在不降低出钢口寿命的前提下，大幅度降低了出钢口砖的整体成本，同时提高了出钢口砖抗热震性能和抗侵蚀性能。
Low-cost magnesium-zirconium-carbon converter tapping hole brick and preparation method thereof
一种低成本镁锆碳质转炉出钢口砖及制备方法
ZHANG YUANHONG (author) / YU XIPING (author) / XU KUNBO (author) / ZHOU LIANG (author) / JI KAI (author) / WANG YUJIAO (author) / LIU HUI (author)
2021-04-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C21C
Weiterverarbeiten von Roheisen, z.B. Feinen, Herstellen von Schweißeisen oder Stahl
,
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
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