GAS TEMPERATURE LOWERING COLUMN

摘要

PROBLEM TO BE SOLVED: To prevent the adhesion of dust in a columnar container. SOLUTION: A gas introducing part 15 equipped with a dispersion chamber 16 and a throttle part 17 is provided adjacent to the upper end of the exhaust gas inlet 8 of the columnar container 7 which has the exhaust gas inlet 8 provided to the center of the top part thereof and a gas outlet 9 provided to one side of the lower end thereof and has a jet water nozzle 10 provided at the upper position thereof. The dispersion chamber 16 is formed into a cylindrical shape having the same axis as the columnar container 7 and has the inlet 18 provided at the outer peripheral part thereof, and an exhaust gas line 3 is connected to the inlet 18 in a normal line direction, and a guide vane 20, which disperses the gas flow going toward the outlet 19 provided at the bottom part of the dispersing chamber 16 on the central side from the inlet 18 in a circumferential direction, is provided to the dispersing chamber 16. The throttle part 17 is constituted by attaching a grid rectifying plate 22 to the inside of the duct member 21 connecting the outlet 19 and the exhaust gas inlet 8 and providing a large number of fine gas flow channels 23 extending in a vertical direction to the grid rectifying plate. The exhaust gas 2 guided from a combustion furnace through the exhaust gas line 3 is dispersed in the circumferential direction of the dispersing chamber 16 and rectified downwardly in the vertical direction by the throttle part 17 to be allowed to flow in the columnar container 7.