| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for blowing a synthetic resin material into a vertical metallurgical furnace, which enables a blast furnace or the like to use a large amount of the synthetic resin material, and a cost for pretreating the synthetic resin material to be reduced. SOLUTION: In the vertical metallurgical furnace of blowing a hot blast sent from a hot-blast stove into the furnace through a tuyere, the method for blowing the synthetic resin material into the vertical metallurgical furnace comprises supplying the synthetic resin material into a hot-blast main pipe which combines the hot-blast stove and the tuyere; burning at least one part of the synthetic resin material to generate a reducing gas; then blowing the gas into the vertical metallurgical furnace; and using the reducing gas as a reducing material in the vertical metallurgical furnace. The synthetic resin material is supplied preferably from a plurality of portions in the hot-blast main pipe. COPYRIGHT: (C)2005,JPO&NCIPI
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