Importance

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Abstract

Provided is a combustion system, and in particular a thermal decomposition system and plasma melting system, with which superheated steam is generated in an energy-efficient manner and the combustion structure has an improved combustion efficiency. A combustion system for making hot water coming from a boiler (11) into superheated steam with a superheated steam generation device (20) and supplying the superheated steam to a combustion structure (50) is provided with the following: the combustion structure (50) which combusts a fuel and a carbonaceous solid at 350 to 1,000° C.; a heat storage device (70) for storing waste heat from the combustion structure; and a heat exchange water tank (12) that is connected so as to allow heat exchange, through a heat transport medium, with heat from the heat storage device (70), and that heats water that is supplied to the boiler (11). The combustion system is provided with an oxyhydrogen gas supply structure (40) for heating the water supplied to the boiler (11) and also supplying an oxygen/hydrogen mixed gas, and a mixer (30) for mixing the superheated steam generated with the superheated steam generation device (20) and the oxygen/hydrogen mixed gas from the oxyhydrogen gas supply structure (40). The superheated steam is mixed with the oxyhydrogen gas and supplied to the combustion structure (50).

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First Claim