| 摘要 |
In a fluidized bed thermal reaction apparatus for burning or gasifying combustibles containing noncombustible components, the accumulation of noncombustible components in a fluidized bed furnace (1) is prevented, and the noncombustible components are taken out smoothly, whereby the combustibles are burnt or gasified. The fluidized bed thermal reaction apparatus is provided with a mild diffusion plate (2), forcible diffusion plates (3) and auxiliary diffusion plates (3') which have a plurality of fluidizing gas supply holes (72, 74, 76) respectively, and noncombustible component recovery ports (8) formed between the auxiliary diffusion plate and forcible diffusion plate. A part of the fluidizing gas is supplied from the noncombustible component recovery ports, or the noncombustible component recovery ports are opened laterally, whereby a continuous fluidized bed circulating current (19) is formed at a furnace bottom. The mild diffusion plate and auxiliary diffusion plates have inclined surfaces extending downward toward the noncombustible component recovery ports, and the forcible diffusion plates inclined surfaces extending upward gradually as they are away from the noncombustible component recovery ports.
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