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一、前言国外钢包底吹氩供气砖,在结构方面,如弥散型、直缝型已逐渐被淘汰,现多采用定向多孔型。在材质方面,有镁质、镁铬质和刚玉质等。武钢第二炼钢厂冶炼取向硅钢采用日本进口的刚玉质弥散型供气砖底吹,寿命约6次;其它钢种采用西德引进的上插式喷枪顶吹,寿命约4次,都不能适应炼钢发展需要。其中,顶吹多耗钢材和耐火材料,并影响钢液质量;底吹一代钢包龄内需多次更换供气砖,工人劳动强度大,并影响钢包周转。为了改善武钢一、二炼钢厂的钢包吹氩的技术经济指标,1985年以来,开展了不同
First, the foreword Foreign ladle at the end of argon gas supply brick, in terms of structure, such as diffuse, straight seam type has been gradually eliminated, now more directional porous. In the material, there are magnesia, magnesia chrome and corundum and so on. WISCO second steelmaking smelting oriented silicon steel imported from Japan fused alumina diffusion brick at the end of life expectancy about 6 times; other types of steel introduced by West Germany on top of the injection gun, life of about 4 times, can not Adapt to the needs of steelmaking development. Among them, the top blowing more consumption of steel and refractory materials, and affect the quality of molten steel; bottom blowing generation ladle within the need to replace the supply brick several times, workers labor-intensive, and affect the ladle turnover. In order to improve the technical and economic indexes of the ladle argon blowing in No.1 and No.2 steel mills of WISCO, since 1985,