Abstract: Provided are a method and an apparatus for cooling a high-temperature exhaust gas, capable of cooling effectively the high-temperature exhaust gas with a small amount of water, as well as, a combustion treatment equipment provided with the cooling apparatus. According to this method, a water curtain is formed orthogonal to the flow of the exhaust gas within a passage through which the high-temperature exhaust gas flows, and the high-temperature exhaust gas is allowed to pass through the water curtain to be cooled thereby. The cooling apparatus is provided with cylindrical cooling chamber (53) having at an upper position a high-temperature exhaust gas inlet (51) and at a lower position a cooled exhaust gas outlet (52); and a plurality of water spray pipes (54) arranged near the high-temperature exhaust gas inlet.

Abstract: A combustion type detoxifying apparatus which carries out detoxifying treatment of a raw gas containing toxic components injected through a burner (2) into a combustion chamber (1) by allowing the toxic components to burn or undergo pyrolysis. The combustion chamber (1) having a double-wall structure consisting of an outer barrel (11) and an inner barrel (12) which is made of a porous material. The combustion chamber (1) is provided with a gas introducing nozzle (4) for introducing a pressure gas to the space defined between the outer barrel (11) and the inner barrel (12).

Abstract: A combustion type detoxifying apparatus which carries out detoxifying treatment of a raw gas containing toxic components injected through a burner (3) into a combustion chamber (1) by allowing the toxic components to burn or undergo pyrolysis. The burner (3) has a raw gas nozzle (32a) for injecting the raw gas, a lift gas nozzle (32b) for injecting an inert gas, a raw gas combustion assisting gas nozzle (32c) for injecting a gas for assisting combustion of combustible components in the raw gas, a fuel gas combustion assisting gas nozzle (32d) for injecting a gas for assisting combustion of the fuel gas and a fuel gas nozzle (32e) for injecting the fuel gas.