Abstract: A combustion type waste gas treatment method wherein waste gas discharged from an industrial product manufacturing process is introduced into combustion flames to thermally or oxidatively decompose a combustible component in the waste gas. Hydrogen gas and oxygen gas are generated by electrolysis of water and supplied as a gas for combustion to form the combustion flames. A pipe or a hole through which the combustion flames can be viewed directly is formed in a wall of the burner part upstream of the combustion flames. The combustion flames are detected with a UV sensor through the pipe or the hole.

Abstract: A combustor for waste gas treatment having a flame stabilizing zone 15 surrounded by a peripheral wall 13 and closed with a bottom wall 14. The flame stabilizing zone 15 is provided to face a combustion chamber 11. Burner ports 23 for auxiliary combustible gas are provided in the peripheral wall 13 to inject an auxiliary combustible gas B into the flame stabilizing zone 15 so as to produce swirling flows. Burner ports 22 for waste gas are provided in the bottom wall 14 to inject a waste gas A into the flame stabilizing zone 15.

Abstract: A waste gas treatment system has a primary cooling section provided at a stage subsequent to a decomposition treatment section in which a waste gas is subjected to decomposition treatment at high temperature. The primary cooling section has a liquid spray part for spraying a liquid on the treated gas from the decomposition treatment section. A secondary cooling section cools the treated gas sprayed with the liquid in the primary cooling section to reduce the volume of the treated gas. Further, a particle collecting section injects a liquid into the treated gas cooled in the secondary cooling section to collect fine particles contained in the treated gas.

Abstract: A scrubber comprises a casing having an exhaust gas inlet and an exhaust gas outlet; an impeller mounted in the casing, and which is rotated about its own axis, an exhaust gas introduced into the center of the impeller through the exhaust gas inlet of the casing; a cleaning liquid discharge nozzle positioned at the center of the impeller to spray a cleaning liquid in the impeller; and, a baffle member spaced apart from and surrounding the impeller on which a mixture of the exhaust gas and the cleaning liquid exiting the impeller impinges. The cleaning liquid discharge nozzle is provided inside and rigidly connected to the impeller to rotate together with the impeller. The nozzle has a plurality of cleaning liquid discharge orifices extending radially through the cylindrical wall thereof to discharge a cleaning liquid into the impeller.

Abstract: A combustor for waste gas treatment having a flame stabilizing zone 15 surrounded by a peripheral wall 13 and closed with a bottom wall 14. The flame stabilizing zone 15 is provided to face a combustion chamber 11. Burner ports 23 for auxiliary combustible gas are provided in the peripheral wall 13 to inject an auxiliary combustible gas B into the flame stabilizing zone 15 so as to produce swirling flows. Burner ports 22 for waste gas are provided in the bottom wall 14 to inject an waste gas A into the flame stabilizing zone 15.

Abstract: A combustor for waste gas treatment having a flame stabilizing zone 15 surrounded by a peripheral wall 13 and closed with a bottom wall 14. The flame stabilizing zone 15 is provided to face a combustion chamber 11. Burner ports 23 for auxiliary combustible gas are provided in the peripheral wall 13 to inject an auxiliary combustible gas B into the flame stabilizing zone 15 so as to produce swirling flows. Burner ports 22 for waste gas are provided in the bottom wall 14 to inject an waste gas A into the flame stabilizing zone 15.

Abstract: A combustor for waste gas treatment having a flame stabilizing zone 15 surrounded by a peripheral wall 13 and closed with a bottom wall 14. The flame stabilizing zone 15 is provided to face a combustion chamber 11. Burner ports 23 for auxiliary combustible gas are provided in the peripheral wall 13 to inject an auxiliary combustible gas B into the flame stabilizing zone 15 so as to produce swirling flows. Burner ports 22 for waste gas are provided in the bottom wall 14 to inject a waste gas A into the flame stabilizing zone 15.

Abstract: A combustion type waste gas treatment system capable of oxidatively decomposing a hazardous and combustible waste gas under heating efficiently with a structure which allows the waste gas to mix with an auxiliary burning gas efficiently without the occurrence of backfire in a waste gas inlet pipe. The combustion type waste gas treatment system has a burner part and a combustion chamber. Combustion flames are formed to extend from the burner part toward the combustion chamber, and a combustible waste gas is introduced into the combustion frames from waste gas inlet pipes thereby oxidatively decomposing the waste gas. A flow velocity accelerating device makes the flow velocity of the combustible waste gas flowing through the waste gas inlet pipe higher than the burning velocity of the combustible waste gas.