小型試験高炉による酸素高炉法の検討

概要

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Experimental and theoretical studies were made to confirm the usefulness of the oxygen blast furnace presented in the preceding report which is characterized by the combined injection of pulverized coal in a large amount to prevent the excessive increase of the flame temperature and following results were obtained. 1) In the operation of the blast furnace test plant with the production capacity of 15t/d, such a large amount of pulverized coal as 1.2kg per 1m^3 of blast oxygen was injected without any problem and the coal rate of 407kg/t, the coke rate of 258kg/t and the productivity of 7.35t/d/m^3 was achieved as an operation result. 2) By one dimensional blast furnace mathematical simulation model, it was predicted that the coal rate of 375kg/t, the coke rate of 180kg/t and the productivity of 3.3t/d/m^3 can be achieved in a commercial scale blast furnace.
社団法人日本鉄鋼協会の論文
1991-12-01