| 摘要 |
<p>A combustion device which is used for a boiler using RDF as a fuel or used for a municipal refuse incinerating plant and which lessens the generation of NOx and increases the separating efficiency of the bed material in a dust collector and further, gives an excellent fluidity to the bed material in a fluidized bed incinerator. The combustion device is provided with the fluidized bed incinerator (1), a cyclone (2) arranged at the downstream side of the fluidized bed incinerator (1) to separate the bed material and the combustion residue discharged from the fluidized bed incinerator (1) from the combustion gas and collect them, and a reflux passage (3) installed between the cyclone (2) and the incinerator (1) to return the bed material and the combustion residue collected by the cyclone (2) to the incinerator (1). A secondary combustion furnace (31) completely burning unburnt matter in the combustion gas from the cyclone (2) by introducing air and a heat-recovery part (12) installed on the reflux passage (3) for the bed material and the combustion residue are provided.</p> |
