| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate the maintenance and management in a packed bed by providing either of a gas introducing and distributing space section and gas discharging and aggregating space section with lines for supplying powder and granular materials from a powder and granular material inlet section. SOLUTION: The moving bed 52 as the packed bed is divided to respective block regions. The lines d1, d2 for connecting a supply hopper 61 and the respective block regions are respectively disposed in these block regions. Valves v1, v2 are respectively disposed in these lines d1, d2. Two pieces of the lines d3 to d5 are respectively disposed in order to connect the supply hopper 61 and the respective spaces for storing the powder and granular materials and valves v3 to v5 are respectively disposed in these lines d3 to d5. Then, the supply of the powder and granular materials to the arbitrary block regions is stopped by selectively closing the valves v1, v2. The withdrawing of the powder and granular materials of the corresponding to block regions is made possible. The storage of the powder and granular materials in the arbitrary spaces for storing the powder and granular materials is made possible by selectively opening the valves v3 to v5.</p> |
