POWDER AND GRAIN TYPE FUEL COMBUSTION MECHANISM, AND POWDER AND GRAIN TYPE FUEL COMBUSTION DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a combustion mechanism for suppressing the melt of ashes discharged accompanied by combustion, and to provide a powder and gain type fuel combustion device using the same for combusting powder and grain type fuel.

SOLUTION: The powder and grain type fuel combustion mechanism comprises a powder and grain type fuel thin layer 3 formed on the inner face of a combustion furnace wall 12 having a plurality of air distribution holes 120 with the power and grain type fuel layered thereon at a thickness allowing the combustion thereof at a temperature not higher than a melting temperature of the ashes of the powder and grain type fuel, wherein the powder and grain type fuel thin layer 3 is combusted in the non-melting state of the ashes. The powder and grain type fuel combustion device CS comprises the plurality of air distribution holes 120 formed at the wall 12 of a combustion furnace 1 combusting the powder and grain type fuel, and the powder and grain type fuel thin layer 3 formed on the inner face of the combustion furnace 1 with the powder and grain type fuel layered thereon, wherein the power and grain type fuel is uniformly combusted at a predetermined temperature inhibiting the melt of the ashes of the powder and grain type fuel during combustion.

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