| 摘要 |
PROBLEM TO BE SOLVED: To provide a gasification fusion system capable of improving slug quality. SOLUTION: A dust catcher 2B disposed between a gasification furnace 1 and a fusion furnace 4 removes dust containing flying ash, following combustible thermal decomposition gas from the gasification furnace 1,, The dedusted thermal decomposition gas is used as fuel for the fusion furnace 4, dust removed by the dust collector 2B is introduced in the furnace of the fusion furnace 4 as a substance to be fused by feeding means L4 and L5 to fuse the substance to be fused. Meanwhile, a control means 20 monitors a thermal decomposition gas nature detecting means 14 and fusion state detecting means 15 and 16. When the nature of thermal decomposition gas or the fusion state of the fusion furnace 4 is reduced to a given state, by deciding that there is a fear of a substance to be fused being discharged in non-fused state from the fusion furnace 4, a feed of the substance to be fused to the fusion furnace 4 is stopped by controlling the feeding means L4 and L5. The fusion furnace 4 is brought into a state that the substance to be fused is no more introduced.
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