| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a fluidized-bed boiler and a fluidized-bed boiler operation method capable of preventing enlargement of a bed material and thereby ensuring stable combustion operation.SOLUTION: Provided is a fluidized-bed boiler 1 forming a fluidized bed by supplying combustion gas from below a furnace 2 filled with a bed material X, and supplying fuel to the fluidized bed to perform a combustion treatment. The fluidized-bed boiler 1 includes: a temperature regulator regulating a bottom temperature of the furnace 2; and a controller 12 setting the bottom temperature of the furnace 2 regulated by the temperature regulator so that the bottom temperature is lower than a liquid phase start temperature of a compound deriving from a component after combustion of the fuel.</p> |
