EXHAUST GAS COOLING TOWER WITH DUST COLLECTING PART

PROBLEM TO BE SOLVED: To provide an exhaust gas cooling tower with a dust collection part which has integrated a cooling and dust collecting function while suppressing the generation of dioxins and saving the installation place. SOLUTION: In an ascending flow type cylindrical exhaust gas cooling tower receiving exhaust gas containing particles of soot from its lower part to discharge the same from its upper part to perform the cooling and dust collection of the exhaust gas, the exhaust gas introducing part is constituted so that (1) an inner cylinder 7 is concentrically arranged in lower part of the outer cylinder 2 of the exhaust gas cooling tower 1 to form a double cylinder structure and (2) the upper part of the inner cylinder is expanded in its diameter to be formed into a tapered form to be arranged to the outer cylinder 2 without generating a gap and (3) an exhaust gas introducing duct 3 is arranged to the part constituting the double cylinder. The falling stream with a predetermined flow speed or more of the exhaust gas is generated from the lower part of the double cylinder through the annular space between the outer and inner cylinders 2 and 7 to be guided to the upper part of the double cylinder and the dust collection part 5 is arranged to the upper part of the tower and a cooling part 11 consisting of a cooling means 9 and a cooling space for cooling the exhaust gas is provided under the dust collection part 5.