| 摘要 |
PROBLEM TO BE SOLVED: To mitigate the damage of a filter part or an exhaust facility when an explosion is caused in a fluidized-bed vessel. SOLUTION: The fluidized-bed vessel 1 is provided with: a treatment chamber 2 for treating a granular substance M; a filter chamber 4 which is positioned above the treatment chamber 2 and in which the filter part 3 for solid-gas separation is arranged; an upper chamber 5 positioned above the filter chamber 4; a partition wall 6 for dividing the filter part 4 from the upper chamber 5; and an exhaust chamber 7 arranged in the upper part of the filter part 3. A blast diffusing port 6a is arranged on the partition wall 6. When the explosion is caused in the treatment chamber 2 for some reason and the pressure in the treatment chamber 2 and that in the filter chamber 4 reach a predetermined value, a rupture plate 6a1 at the blast diffusing port 6a ruptures and the opening 6a2 of the partition wall 6 opens. As a result, the explosion pressure in the treatment chamber 2 and that in the filter chamber 4 diffuse into the upper chamber 5 through the opening 6a2 of the partition wall 6. COPYRIGHT: (C)2008,JPO&INPIT
|
