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Combined type steel ladle permanent layer casting body
The invention discloses a combined type steel ladle permanent layer casting body which comprises an upper casting body portion and a lower casting body portion. The combination position of the upper casting body portion and the lower casting body portion is lower than that of a work layer of a slag line and a work layer of a molten pool, and the height difference H of the combination positions is equal to 500 mm to 600 mm. The upper casting body portion is formed by casting magnesium-chromium castable. The lower casting body portion is formed by casting alumina-magnesia castable prepared from corundum reclaimed materials. The upper portion and the lower portion of a steel ladle permanent layer are formed by casting castable of different materials in a combined mode, and the magnesium-chromium fireproof castable is adopted in the upper portion; the excellent scouring preventing performance, molten steel washing preventing performance and high-temperature use strength are achieved; slag corrosion and washing of molten steel can be effectively resisted, and then the use safety coefficient of a steel ladle is improved by 5-8 times. The alumina-magnesia castable prepared from the corundum reclaimed materials is adopted in the lower portion; the service life is long, and meanwhile manufacturing cost is greatly lowered, and cost performance is improved; the problem that fireproof material resources are in short supply is effectively solved.
Combined type steel ladle permanent layer casting body
The invention discloses a combined type steel ladle permanent layer casting body which comprises an upper casting body portion and a lower casting body portion. The combination position of the upper casting body portion and the lower casting body portion is lower than that of a work layer of a slag line and a work layer of a molten pool, and the height difference H of the combination positions is equal to 500 mm to 600 mm. The upper casting body portion is formed by casting magnesium-chromium castable. The lower casting body portion is formed by casting alumina-magnesia castable prepared from corundum reclaimed materials. The upper portion and the lower portion of a steel ladle permanent layer are formed by casting castable of different materials in a combined mode, and the magnesium-chromium fireproof castable is adopted in the upper portion; the excellent scouring preventing performance, molten steel washing preventing performance and high-temperature use strength are achieved; slag corrosion and washing of molten steel can be effectively resisted, and then the use safety coefficient of a steel ladle is improved by 5-8 times. The alumina-magnesia castable prepared from the corundum reclaimed materials is adopted in the lower portion; the service life is long, and meanwhile manufacturing cost is greatly lowered, and cost performance is improved; the problem that fireproof material resources are in short supply is effectively solved.
Combined type steel ladle permanent layer casting body
HONG XUEQIN (author) / WANG ZHIQIANG (author) / TIAN XIANMING (author) / LEI ZHONGXING (author) / PENG XIAOQIAN (author) / ZHOU FEN (author) / XU YANMING (author)
2015-10-14
Patent
Electronic Resource
English
Light refractory brick for permanent layer of steel ladle
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