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A platform for research: civil engineering, architecture and urbanism
Magnesia carbon brick for electric arc furnace wall hot spot area
The invention discloses a magnesia carbon brick for a furnace wall hot spot area of an electric arc furnace. The magnesia carbon brick comprises the following components in parts by weight: fused magnesia, graphite, Carbores P carbon-containing resin powder, boron carbide, yttrium oxide, nano Fe powder and a binding agent. According to the invention, small-particle fused magnesite is adopted to reduce magnesium-carbon reaction at high temperature; by adding the carbon-containing resin powder, heterogeneous graphitized carbon can be generated at high temperature, and the oxidation resistance and high-temperature strength of the product are improved; besides, the product is free of metal substances as antioxidants, so that the metal substances can be prevented from reacting with the graphite, and the consumption of the graphite is reduced; by adding yttrium oxide, the erosion resistance of the magnesia carbon brick can be improved; and by adding the nano Fe powder, a large number of carbon nanotubes can be promoted to be generated, and the thermal shock stability and the high-temperature mechanical property are greatly improved due to the generation of the carbon nanotubes. In conclusion, the magnesia carbon brick is high in thermal shock stability and high-temperature performance, high in erosion resistance and scouring resistance and long in service life, and the service life of the hot spot brick is greatly prolonged.
本发明公开了一种电弧炉炉壁热点区用镁碳砖，包括以下重量份的组分：电熔镁砂、石墨、Carbores P含碳树脂粉、碳化硼、氧化钇、纳米Fe粉、结合剂。本发明采用小颗粒电熔镁砂以减少高温下的镁碳反应；加入含碳树脂粉，可在高温下生成非均质石墨化碳，提高产品的抗氧化性和高温强度；不加金属物作为抗氧化剂，可避免金属物与石墨反应，减少石墨的消耗；加入氧化钇可提高镁碳砖抗侵蚀性；加入纳米Fe粉可促使生成大量碳纳米管，碳纳米管的生成大幅提高热震稳定性和高温力学性能；热震稳定性和高温性能均高，高耐侵蚀耐冲刷镁碳砖，寿命使用长，大幅提高热点砖的寿命。
Magnesia carbon brick for electric arc furnace wall hot spot area
The invention discloses a magnesia carbon brick for a furnace wall hot spot area of an electric arc furnace. The magnesia carbon brick comprises the following components in parts by weight: fused magnesia, graphite, Carbores P carbon-containing resin powder, boron carbide, yttrium oxide, nano Fe powder and a binding agent. According to the invention, small-particle fused magnesite is adopted to reduce magnesium-carbon reaction at high temperature; by adding the carbon-containing resin powder, heterogeneous graphitized carbon can be generated at high temperature, and the oxidation resistance and high-temperature strength of the product are improved; besides, the product is free of metal substances as antioxidants, so that the metal substances can be prevented from reacting with the graphite, and the consumption of the graphite is reduced; by adding yttrium oxide, the erosion resistance of the magnesia carbon brick can be improved; and by adding the nano Fe powder, a large number of carbon nanotubes can be promoted to be generated, and the thermal shock stability and the high-temperature mechanical property are greatly improved due to the generation of the carbon nanotubes. In conclusion, the magnesia carbon brick is high in thermal shock stability and high-temperature performance, high in erosion resistance and scouring resistance and long in service life, and the service life of the hot spot brick is greatly prolonged.
本发明公开了一种电弧炉炉壁热点区用镁碳砖，包括以下重量份的组分：电熔镁砂、石墨、Carbores P含碳树脂粉、碳化硼、氧化钇、纳米Fe粉、结合剂。本发明采用小颗粒电熔镁砂以减少高温下的镁碳反应；加入含碳树脂粉，可在高温下生成非均质石墨化碳，提高产品的抗氧化性和高温强度；不加金属物作为抗氧化剂，可避免金属物与石墨反应，减少石墨的消耗；加入氧化钇可提高镁碳砖抗侵蚀性；加入纳米Fe粉可促使生成大量碳纳米管，碳纳米管的生成大幅提高热震稳定性和高温力学性能；热震稳定性和高温性能均高，高耐侵蚀耐冲刷镁碳砖，寿命使用长，大幅提高热点砖的寿命。
Magnesia carbon brick for electric arc furnace wall hot spot area
一种电弧炉炉壁热点区用镁碳砖
KANG DONGDONG (author) / LU ZHIYAN (author) / CHEN YONG (author) / CUI JUAN (author) / YU BAOTONG (author)
2021-03-12
Patent
Electronic Resource
Chinese
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