To provide a dust collecting device capable of collecting salt components leading to molten salt together with particles such as oxidized parts leading to adhered ash at high temperature parts in an incinerator, a gasifier, or a gasification-melting device for solid fuel such as waste and coal.
A heat transfer tube 12 for passing cooling medium such as cooling water or steam therein is installed in a housing 11. A heat exchange is performed between the cooling medium in the heat transfer tube 12 and gas d generated by the combustion or partial combustion of inflammables in a gasification-melting furnace 20 and discharged from the gasification-melting furnace 20 to lower the temperature of the gas d. Thus fly ash in the gas can be adhered to the surface of the heat transfer tube 12.
NAGAI HIROSHI
SAKAMOTO HIDEYUKI
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