Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Repairing material for lining of tapping hole of converter as well as preparation method and use method of repairing material
The invention belongs to the field of refractory materials for converter tapping holes in the iron and steel industry, and particularly relates to a converter tapping hole lining repairing material and a preparation and use method thereof.The repairing material is prepared from waste magnesia carbon bricks, magnesia-calcium sand, alumina-magnesia spinel, ordinary pyroxene, montmorillonite, semi-coke and waste aluminum-zirconium carbon bricks as main materials, ZnO as an additive and alumina sol as a binding agent through a one-step method. And the material is used for repairing the lining of the tapping hole. The repairing material is high in high-temperature resistance, slag resistance, molten steel erosion resistance and scouring resistance, high in bonding strength with a matrix and good in thermal shock stability. According to the invention, on-line hot repair can be carried out on the lining of the tapping hole, the service life after one-time repair reaches more than 150 furnaces, the overall service life of the tapping hole is prolonged to more than 370 furnaces from the original about 220 furnaces, the overall service time of the tapping hole is greatly prolonged, the brick lining is fully utilized, and the maximum utilization of resources is realized. And meanwhile, the cost of the tapping hole is also greatly reduced.
本发明属于钢铁行业转炉出钢口用耐火材料领域，具体涉及一种转炉出钢口内衬修补料及其制备和使用方法，所述修补料以废旧镁碳砖、镁钙砂、铝镁尖晶石、普通辉石、蒙脱石、兰炭、废旧铝锆碳砖为主料，ZnO为添加剂，铝溶胶为结合剂，以此料对出钢口内衬进行修补。该修补料耐高温，抗渣、钢水侵蚀和冲刷能力强，与基体结合强度高，热震稳定性好。可对出钢口内衬进行在线热修补，修补一次的使用寿命达到150炉以上，使出钢口整体寿命由原来的220炉左右提高到370炉以上，大大延长了出钢口整体服役时间，使砖衬得到充分利用，实现了资源利用最大化。同时，也大大降低了出钢口成本。
Repairing material for lining of tapping hole of converter as well as preparation method and use method of repairing material
The invention belongs to the field of refractory materials for converter tapping holes in the iron and steel industry, and particularly relates to a converter tapping hole lining repairing material and a preparation and use method thereof.The repairing material is prepared from waste magnesia carbon bricks, magnesia-calcium sand, alumina-magnesia spinel, ordinary pyroxene, montmorillonite, semi-coke and waste aluminum-zirconium carbon bricks as main materials, ZnO as an additive and alumina sol as a binding agent through a one-step method. And the material is used for repairing the lining of the tapping hole. The repairing material is high in high-temperature resistance, slag resistance, molten steel erosion resistance and scouring resistance, high in bonding strength with a matrix and good in thermal shock stability. According to the invention, on-line hot repair can be carried out on the lining of the tapping hole, the service life after one-time repair reaches more than 150 furnaces, the overall service life of the tapping hole is prolonged to more than 370 furnaces from the original about 220 furnaces, the overall service time of the tapping hole is greatly prolonged, the brick lining is fully utilized, and the maximum utilization of resources is realized. And meanwhile, the cost of the tapping hole is also greatly reduced.
本发明属于钢铁行业转炉出钢口用耐火材料领域，具体涉及一种转炉出钢口内衬修补料及其制备和使用方法，所述修补料以废旧镁碳砖、镁钙砂、铝镁尖晶石、普通辉石、蒙脱石、兰炭、废旧铝锆碳砖为主料，ZnO为添加剂，铝溶胶为结合剂，以此料对出钢口内衬进行修补。该修补料耐高温，抗渣、钢水侵蚀和冲刷能力强，与基体结合强度高，热震稳定性好。可对出钢口内衬进行在线热修补，修补一次的使用寿命达到150炉以上，使出钢口整体寿命由原来的220炉左右提高到370炉以上，大大延长了出钢口整体服役时间，使砖衬得到充分利用，实现了资源利用最大化。同时，也大大降低了出钢口成本。
Repairing material for lining of tapping hole of converter as well as preparation method and use method of repairing material
一种转炉出钢口内衬修补料及其制备和使用方法
WANG CHANGBAO (Autor:in) / TOYOTOSHI (Autor:in) / XING MINGMING (Autor:in) / LIU JUNBAO (Autor:in) / LIU ZHONGJIAN (Autor:in)
23.02.2024
Patent
Elektronische Ressource
Chinesisch
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