| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve dust removing efficiency while the gas flow velocity in a column for cooling gas quickly is optimized, to reduce dust adhesion by the collision of a revolving current with a side wall, and to decrease the frequency of maintenance in the column for cooling gas quickly. SOLUTION: In a column for cooling gas quickly in which a gas cooling part 3 is formed in the upper part of a cyclone part 2, and an inside cylinder 4 which forms introduced exhaust gas into a revolving current is arranged in the cyclone part 2, the top part of the cylinder 4 is closed by a top part cone 10 and positioned in the lower part of the gas cooling part 3, the lower part of the cylinder 4 is positioned at a distance from a cyclone bottom part 8, and an exhaust gas passage 11 through which an exhaust gas inverted from the lower part of the cylinder 4 by the clearance between the cyclone part 2 and the cylinder 4 flows is formed.</p> |
