多段多室連続流動層における溢流管と分割板について

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タイトル別名
  • Overflow Pipe and Partition Plate in Fluidized Bed with Multi-Stages and Multi-Rooms
  • タダン タシツ レンゾク リュウドウソウ ニ オケル イツリュウカン ト ブン

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An investigation was carried out to obtain the stabilizing conditions for the flow of solid particles in a continuous fluidized bed both with overflow pipes and partition plates, using a cold model made of glass.<BR>(1) Amounts of gas introduced into overflow pipe, when l>l'>7.5, qb≥qmf and qc≥qmf were given by the following equations.<BR>In batch operation, In continiuous operation, qb=Qp (d'/D) 2ψb.<BR>In continiuous operation, qc=Qp (d'/D) 2ψc-F/ρs (1-εf) ·103<BR>It was suggested that qc must be nearly equal to qmf in order to maintain the stabilization of gravity flow of solids through the overflow pipe.<BR>(2) The pressure difference, at a level, between the beds separated by a partition plate was decreased with increasing the height above the gas distributor.<BR>In order to minimize the height difference in these two beds, the partition plate with a slit at lower level was effective.<BR>(3) It was suggested that the overall solid mixing behavior in two fluidized rooms, separated by the partition plate with a partially formed moving bed of solid particles, was similar to that expected for two complete mixing stages in series.

収録刊行物

  • 鉄と鋼

    鉄と鋼 65 (2), 169-175, 1979

    一般社団法人 日本鉄鋼協会

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