FIELD: ferrous metallurgy, blast furnace structures. SUBSTANCE: structure has metal jacket, coolers and refractory brickwork, made of two layers: working and intermediate. Working layer has horizontally and vertically laid carbon-graphite blocks, between which and intermediate layer there is layer of carbon mass. Coolers are located between jacket and intermediate layer, made of chamotte and zircon bricks. EFFECT: increased blast furnace operational duration. 1 dwg
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|
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