PROBLEM TO BE SOLVED: To provide a fluidized-bed apparatus in which a gas pulsating wave is used, the vibration of which is suppressed and the energy efficiency of which is improved.SOLUTION: The fluidized-bed apparatus includes: a fluidized-bed vessel 1 a plurality of gas supply chambers 2 (2b, 2c) a gas supply line 3 one pulsating wave production unit 4 interposed on the gas supply line 3 and a blower 6. The gas supply line 3 comprises an upstream-side gas supply line 3a arranged on the upstream side of the pulsating wave production unit 4, a first gas supply line 3b for connecting the pulsating wave production unit 4 to the gas supply chamber 2b, and a second gas supply line 3c for connecting the pulsating wave production unit 4 to the gas supply chamber 2c. The pulsating wave production unit 4 is operated so that flow passages are changed gradually from/to such a state that the upstream-side gas supply line 3a is communicated with only one of the first gas supply line 3b and the second gas supply line 3c to/from such a state that the upstream-side gas supply line 3a is communicated with only the other thereof via such a state that the upstream-side gas supply line 3a is communicated with both thereof. As a result, a first gas pulsating wave is produced in the first gas supply line 3b and a second gas pulsating wave is produced in the second gas supply line 3c. The first and the second gas pulsating waves are supplied to the fluidized-bed vessel 1 through the gas supply chambers 2b, 2c when the blower 6 and the pulsating wave production unit 4 are operated thus.COPYRIGHT: (C)2012,JPO&INPIT【課題】気体脈動波を使用する流動層装置において、振動を抑制すると共にエネルギー効率を向上させること。【解決手段】流動層装置は、流動層容器1と、複数の給気室2(2b,2c)と、給気経路3と、給気経路3に介装された1個の脈動波発生装置4と、ブロアー6とを備える。給気経路3は、脈動波発生装置4より上流側の上流側給気経路3aと、脈動波発生装置4と給気室2bとを接続する第1給気経路3bと、脈動波発生装置4と給気室2cとを接続する第2給気経路3cとで構成される。脈動波発生装置4は、上流側給気経路3aが、第1給気経路3bと第2給気経路3cのうち一方にのみ連通する状態と、他方にのみ連通する状態とに、両方に連通する状態を経由して、漸次に切り換わるように作動する。これによって、第1給気経路3bに第1気体脈動波を発生すると共に、第2給気経路3cに第2気体脈動波を発生する。ブ
