| 摘要 |
PROBLEM TO BE SOLVED: To effectively heat a fluidizing medium by sunlight and to achieve a stable continuous gasification operation.SOLUTION: In a circulating fluidized bed gasification system, a sunlight heating cell 20 having an inclined plate 21 receiving a fluidized medium 4 from a solid/gas separator 17 and slowly dropping down and a light transmission plate 22 opposed to the upper side of the inclined plate 21 to cover it and transmitting collected sunlight to heat the fluidized medium 4 on the inclined plate 21 is installed in the lower part of the solid/gas separator 17. In a fluidized bed combustion furnace 12, an auxiliary fuel supply device 43 is installed, and the fluidized bed combustion furnace 12 includes: a fluidized bed thermometer 45 measuring the temperature of a fluidized bed 5 of the fluidized bed gasification furnace 1; and a control unit 46 having a temperature controller 53 for controlling the supply amount of auxiliary fuel 44 to be supplied to the fluidized bed combustion furnace 12 by sending an auxiliary fuel control signal 52 to the auxiliary fuel supply device 43 so that the detection temperature 45a of the fluidized bed thermometer 45 can be kept at a set temperature. |
