BLOW BACK TYPE GAS DISPERSION PLATE FOR FLUIDIZED BED

摘要

PURPOSE:To prevent the clogging of fluidized gas venting holes by providing both plural pieces of fluidized gas venting holes and an air supply path connected thereto and exhausting gas through the fluidized gas venting holes in case of supplying gas to the air supply path. CONSTITUTION:In a fluidized reactor 2, when fluidizing gas in the direction shown in an arrow from a wind box 12 provided to the lower part of a gas dispersion plate 1 for a fluidized bed, the fluidized gas is allowed to collide against the gas dispersion plate 1 and furthermore passed through fluidized gas venting holes 3. A uniform fluidized layer is formed by being branched right and left or in the front and rear directions by means of caps 4. The fluidized gas made into a uniform fluidized layer in such a way is led to a solid- liquid contact part 13 provided on the upper part of the dispersion plate 1 and furthermore fluidized while accompanying a granular material to be allowed to react therein and thereby uniformly allowed to react with the granular material.