Waste gas treating device having flow-regulating assembly

• Main Authors: YASHIRO KATSUHIRO, SHISHIDO SATORU
• Format: Patent
• Language: English
• Published: 24.09.2003
• Edition: 7
• Subjects: BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; CONSUMING WASTE PRODUCTS BY COMBUSTION; CREMATION FURNACES; FLUES; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES; SEPARATION; TRANSPORTING; WEAPONS

An apparatus having a baffle structure and used for treating an exhaust gas, the apparatus comprising: (a) an inlet duct through which the exhaust gas is flowed in, (b) a bend portion, and (c) a catalyst duct connected to the inlet duct through the bend portion, and having a catalyst used for purifying the exhaust gas and disposed in the catalyst duct, the apparatus further having a baffle structure comprising plural baffle plates disposed at the inlet of the catalyst duct in the direction of the cross section of the catalyst duct, wherein the plural baffle plates are formed and arranged so that the heights of the baffle plates being gradually increased in the direction from the side of the inlet duct toward the extremity of the bend portion to make the flow distribution of the exhaust gas uniform in the direction of the cross section of the catalyst duct at the outlets of the exhaust gas in the baffle structure; by the baffle structure disposed at the inlet of the catalyst duct having a catalyst layer further provided therein, the occurrence of a nonuniform flow distribution (channeling) of an exhaust gas due to its inertial force can be prevented, the efficiency of treating an exhaust gas in the catalyst layer can be increased, and the catalyst life can be lengthened.