| 摘要 |
PROBLEM TO BE SOLVED: To provide an operation control method of a gasification melting system and the system capable of reducing its running cost by reducing the use of fuel such as an auxiliary fuel in starting, performing economical operation, and being stably started without blockage of a slag cinder notch of a melting furnace. SOLUTION: In this operation control method of the gasification melting system wherein a thermal decomposition gas is generated by thermally decomposing wastes 31 in a fluidized bed gasification furnace 3, the thermal decomposition gas 31 is introduced into the melting furnace 6, and ash content is melted by combustion heat of the thermal decomposition gas 31 in the melting furnace 6, fluidization of a bed material is started by combustion air 32 introduced from a bottom of the gasification furnace 3 while synchronously raising temperatures of the gasification furnace 3 and the melting furnace 6, a fluidized state in the gasification furnace 3 is detected after the lapse of a prescribed time from the start of temperature rise, and the temperature rise of the melting furnace 6 is stopped when the fluidization is not established. COPYRIGHT: (C)2008,JPO&INPIT
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