Method for enabling uniform contact between gas and powder by providing oscillating mechanism and gas solid contact device of packed bed, moving layer and multi-stage fluidized bed using the same

摘要

Problem to be solved: to provide an apparatus which does not generate a uniform flow in the packed layer, the moving layer, and the multi-stage fluidized bed using a powder having a high cohesive and high density, so that it is impossible to contact with the gas uniformly.In the present invention, in the packed layer 3 or the moving layer that is ventilated from the bottomA horizontally oscillating porous plate 5 and a stationary porous plateMore than one pairMultiple pairsHorizontal oscillating motion of the swinging perforated plateBy giving horizontal swing motion to the powderBy suppressing the occurrence of the driftConventionallyPacked layer using powder with high aggregation and high compactionMoving layerUniform gas-solid contact was impossible, which was impossible in multi-stage fluidized bed equipment.AndBy the porous plate in the powder layerConsolidation of the powder is also suppressed.Also, in the multi-stage fluidized bed introducing the present oscillating mechanism, uniform gas solid contact is enabled by the movement of the oscillating plate even when the gas flow velocity is smaller than the fluidization start speed.Diagram