Patent ID: 7303730
Filing Date: 2007-12-04
Classification: B01D,B01J,F23J,F23M

Abstract:
1. An apparatus having a baffle device 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 disposed therein and used for purifying the exhaust gas, and the baffle device being a baffle lattice having a height of A and disposed at the inlet of the catalyst duct in the direction of a cross section of the catalyst duct, wherein the baffle lattice is provided, for supporting the lattice, with an outer frame having a height of B and disposed so that upper ends of the outer frame become the same level with the upper ends of the baffle lattice; the outer frame is provided, on its lower ends for supporting the frame, with beams; and the relation between the height A and the height B satisfies the following equation further comprising baffle plates comprising a pair of flat plates are provided in counter relationship both on the upper surfaces of upper flanges and the lower surfaces of lower flanges of the beams used for supporting the outer frame of the baffle lattice so that the angle .alpha. formed between the surfaces of the baffle plates and the upper or lower surfaces of the upper or lower flanges of the beams satisfies the following equation