実物大模型による高炉炉口部のOre/Coke分布の検討

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タイトル別名
  • Study of Ore and Coke Distribution in Blast Furnase Carried out on a Full Size Model
  • ジツブツダイ モケイ ニヨル コウロ ロコウブ ノ Ore Coke ブンプ

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The distribution of are and coke burden composed of pellet and sinter has been investigated by a full size model. Falling trajectory of materials was measured in both the model and a blast furnace, and the equation of the trajectory to be applied to the design of charging equipment was led theoreticarlly. It was found that the inclination of ore and coke layers varied with charging sequence and dumping volume. It was clearly shown that the radial distribution of are and coke depended on coke volume, ore to coke ratio in charging burdens, charging sequences and pellet content in burdens.<BR>Results of the model investigations were applied to commercial blast furnaces. The distribution of of ore to coke ratio with gas flow was calculated with the results of full size model and the are to coke ratio was shown to be reduced at central part with high gas flow velocity in blast furnace.<BR>By comparing the results of full size model with those of a onetenth reduced model, it was found that the mixed layer of are and coke was formed and the are to coke ratio was decreased in the central part of the reduced model. It was reasoned that the ratio of particle weight of are and coke should be taken as one of the scaling factors in the reduced model.

収録刊行物

  • 鉄と鋼

    鉄と鋼 65 (3), 358-367, 1979

    一般社団法人 日本鉄鋼協会

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