高炉シャフト下部近傍で発生した粉コークスの炉芯への流入挙動

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書誌事項

タイトル別名
  • The Inflow to a Deadman of Fine Coke Generated near the Lower Part of the Shaft in a Blast Furnace
  • コウロ シャフト カブ キンボウ デ ハッセイシタ コナコークス ノ ロ シン

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抄録

In order to clarify the descending behavior of fine coke generated near the lower part of the shaft in a blast furnace, the fundamental experiment using a two dimensional cold model simulating the blast furnace was carried out. The results are as follows.<BR>Most of fine coke generated near the central part at the radial axis flows to the raceway and part of fine coke percolates at the slope of the deadman. The percolation to the deadman of fine coke was influenced by Dfine/Dlump, Vt/Vh, and gas velocity in the deadman. Where Dfine and Dlump are an average size of fine coke and lump coke in the deadman respectively, Vt is a descending speed of coke at the throat and Vh, is a renewal speed of deadman. In case of the low gas velocity, the smaller Dfine/Dlump is and the larger Vt/Vh is, the higher ratio of fine coke in the deadman is. In case of the high gas velocity, the fine coke does not percolate to the deadman.

収録刊行物

  • 鉄と鋼

    鉄と鋼 83 (9), 551-556, 1997

    一般社団法人 日本鉄鋼協会

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