| 摘要 |
PROBLEM TO BE SOLVED: To provide a stoker-type incinerator which can lower an air ratio than before without worsening a combustion state.SOLUTION: A stoker-type incinerator 1 comprises a main combustion chamber 21 extending along a stoker 4, a re-combustion chamber 22 making combustion of effluent gas flowing out from the main combustion chamber 21 conclude, a boiler 3 including an emission chamber 31 connected to the re-combustion chamber 22, and a control device 9. Part of the effluent gas which passed the boiler 3 is returned to the main combustion chamber 21 through a circuit 7. The re-combustion chamber 22 or an emission chamber 31 is provided with an oximeter 8 measuring oxygen concentration in the effluent gas. The control device 9 controls secondary air regulating devices 62-66 adjusting amount of secondary air supplied to the main combustion chamber 21 on the basis of the measured value of the oximeter 8. |
