FLUIDIZED BED APPARATUS

PROBLEM TO BE SOLVED: To provide a fluidized bed apparatus the size of which is prevented from increasing and which enables quick discharge treatment without increasing a suction amount.SOLUTION: A fluidized bed apparatus 1 includes a fluidized bed treatment chamber 14 where a gas dispersion plate 13a is disposed on a bottom part 14a, performs treatment such as granulation while floating/fluidizing powdery and granular material by fluidized gas introduced into the fluidized bed treatment chamber 14 via the gas dispersion plate 13a, and includes a discharge mechanism 20 enabling discharge of the powdery and granular material in the fluidized bed treatment chamber 14. The discharge mechanism 20 includes: a long-cylindrical opening member 21 which is disposed on the top surface side of the gas dispersion plate 13a, extends along the diameter direction of the fluidized bed treatment chamber 14 and has an opening part 23 formed along the longitudinal direction; an opening/closing member 22 which can open or close the opening part 23 of the opening member 21; and suction means 19 which makes suction force act on the inside of the fluidized bed treatment chamber 14 via the opening part 23 when the opening part 23 opens.SELECTED DRAWING: Figure 2 【課題】装置の大型化を防止すると共に、吸引量を大きくすることなく、短時間で排出処理を行うことができる流動層装置を提供する。【解決手段】底部１４ａに気体分散板１３ａが配置された流動層処理室１４を備え、気体分散板１３ａを介して流動層処理室１４内に導入される流動化気体によって、粉粒体を浮遊流動させながら、造粒等の処理を行う流動層装置１であって、流動層処理室１４内の粉粒体を排出可能な排出機構２０を備え、排出機構２０は、気体分散板１３ａの上面側に配置され、流動層処理室１４の直径方向に沿って延びると共に、長手方向に沿って形成された開口部２３を有する長筒状の開口部材２１と、開口部材２１の開口部２３を開閉可能な開閉部材２２と、開口部２３が開口したときに、開口部２３を介して流動層処理室１４の内部に吸引力を作用させる吸引手段１９とを有することを特徴とする。【選択図】図２