| 摘要 |
<p>PURPOSE:To obtain a durable and inexpensive spraying device for cooling a high-temp. corrosive waste gas by enclosing a water feed pipe with the tip bent in the shape of an L in the gas flow direction and a spray nozzle at the tip of the feed pipe with a cylindrical L-shaped protective tube and vertically inserting the feed pipe and the nozzle into the passage of the high-temp. corrosive waste gas. CONSTITUTION:A lining 2 resistant to heat and acid is applied on the inner wall of a mild-steel shell 1 forming a gas passage, and the insertion port 3 of a spraying device is formed on the barrel part of the shell. As for the spraying device set in the insertion port 3, a spray nozzle 5 is connected to the tip of a water feed pipe 4 bent in the shape of an L in the gas flow downstream direction (shown by the void arrow), and a cylindrical L-shaped protective tube 6 is fixed to a lid 7 for fixing the entire spraying device to the insertion port 3 so that the water feed pipe 4 and nozzle 5 are enclosed. Consequently, the service life of the device is increased by >=25 times as compared with the conventional one, the material cost is reduced, and the labor cost for the exchange is remarkably saved.</p> |
