To stably maintain a boiler evaporation amount or the like at a set value by enhancing speed of response of combustion control or the like in a stoker type refuse incinerator, and carrying out stable refuse burning even with respect to fluctuations of a refuse burning amount and refuse quality.
In the stoker type refuse incinerator carrying out combustion control by using a fire grate temperature, a temperature of one place or temperatures of a plural places are measured with respect to each fire grate targeting fire grates of plural places of a whole stoker, a ventilation amount of each fire grate is calculated from a measured value of a combustion air amount, a fire grate passing heating amount is calculated from an average temperature and the ventilation amount of each fire grate on the basis of a heat transfer cooling characteristic of the fire grate, and a heating amount of combustion products is grasped by calculated values of the fire grate passing heating amounts.
RYU DAII
NOGAMI HARUO
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