Patent ID: 6780004
Filing Date: 2004-08-24
Classification: F23C,F23D,F23G,F23M

Abstract:
Thermal post-combustion device for the purification of exhaust air, comprisinga) an outer housing surrounded by an insulating jacket; b) a combustion chamber bounded by a combustion chamber housing and arranged inside the outer housing; c) a burner chargeable with a fuel and that comprises a burner nozzle and a first flame tube surrounds the burner nozzle and connects the combustion chamber to a space which is disposed between the outer housing and the combustion chamber housing, characterized in that d) the burner has at least one second flame tube that is arranged completely within the combustion chamber and the end of the first flame tube lying within the combustion chamber is surrounded by the second flame tube of larger radius so that an annular gap is formed between the first flame tube and the second flame tube.