| 摘要 |
PURPOSE: An apparatus for controlling gas flow distribution in a blast furnace is provided to suppress variation of furnace conditions by changing charging method or adjusting blowing amount, prevent damage of metal case by minimizing thermal load, and improve productivity by restraining deterioration of temperature of the furnace. CONSTITUTION: The apparatus for controlling gas flow distribution in a blast furnace comprises a first pipe(20) which is penetrated into the outer circumference of a furnace body metal case(10) as a device that is attached to the body of the blast furnace to blow nitrogen gas into the furnace; a second pipe(20') which is installed along the first pipe(20), at the outer end side of the furnace of which inlet part is formed, and at the inner end side of the furnace of which an outlet part is formed; a water supply pipe which is formed between the first pipe(20) and the outer circumference of the second pipe(20') by being penetrated into one side of the first pipe(20); a drain pipe(22g) that is connected to the outer circumference of the other side of the first pipe(20); and a holder(24) one side of which is removably installed at a clamping part formed on the outer circumference of the first pipe(20), and the other side of which is adhered to the furnace body metal case(10).
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