JP2001193918A5 - - Google Patents

Claims (11)

A flame holding chamber that opens toward the combustion chamber, is surrounded by a peripheral wall, and has the opposite side of the combustion chamber closed by a plate, and an exhaust gas flame that blows exhaust gas toward the flame holding chamber in the plate; A hole and a flame hole for a combustion assisting gas that ejects a combustion assisting gas are provided, and an air ejection nozzle that ejects air in a substantially circumferential direction so as to create a swirling flow on the peripheral wall of the flame holding chamber is provided . A combustor for exhaust gas treatment, wherein a combustion aid and air are introduced and mixed, and the mixed gas is ejected toward the combustion chamber in a direction perpendicular to the plate body. The waste gas flame holes, exhaust gas treatment combustor of claim 1, wherein the smaller in diameter than the flame stabilizing chamber inner diameter. The flue gas hole and the combustion gas flame hole are arranged so that the flame gas hole for the combustion gas is adjacent to the flame hole for the exhaust gas on a substantially circumference centered on the substantially center portion of the flame holding chamber. The combustor for exhaust gas treatment according to claim 1 , wherein the combustor is disposed in a combustor. According to claim 1, characterized in that a second combustion support gas flame hole for ejecting burner air to flame holding chamber peripheral wall of the downstream side of the air injection nozzle in the axial direction of said flame holding chamber Combustor for exhaust gas treatment. The exhaust gas treating combustor according to any one of claims 1 to 4 , wherein the air jet nozzles are arranged in a plurality of groups along the axial direction of the flame holding chamber. The exhaust gas treating combustor according to any one of claims 1 to 5 , wherein the flame holding chamber has a cylindrical shape. The exhaust gas treating combustor according to any one of claims 1 to 5 , wherein the flame holding chamber and the combustion chamber are cylindrical and have substantially the same diameter. A second flame holding chamber is provided on the downstream side along the axial direction of the flame holding chamber, and a second combustion gas blowing hole for blowing a combustion gas is provided on a peripheral wall of the second flame holding chamber. The combustion chamber for exhaust gas treatment according to any one of claims 1 to 7 , wherein a combustion chamber is provided downstream of the second combustion gas flame hole along the axial direction of the flame holding chamber. . The exhaust gas treating combustor according to claim 8 , wherein the air ejection nozzles are arranged in a plurality of groups along the axial direction of the first flame holding chamber. The exhaust gas processing combustor according to claim 8 or 9 , wherein the second combustion gas flame holes are arranged in a plurality of groups along the axial direction of the second flame holding chamber. The exhaust gas treating combustor according to any one of claims 8 to 10 , wherein the first and second flame holding chambers and the combustion chamber are each cylindrical and have substantially the same diameter.