| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a gas blowing device which can structurally suppress the stagnation of scales and remarkably reduce the frequency of maintenance. <P>SOLUTION: In this gas blowing device with a gas introduction pipe 20 for introducing gas to the bottom of a reaction tank 10 filled with liquid, a part (a second pipe) 22 of the gas introduction pipe 20 connected to the reaction tank is connected obliquely to the vertical direction. As the second pipe 22 is installed obliquely, liquid hardly stays thereon to suppress scale generation. In order to facilitate the removal of the scales in the pipe 22, a connection part connected with a vertical part (a first pipe) 21 of the gas introduction pipe is located inside the end of the second pipe 22, and the end is covered with a flange 23. <P>COPYRIGHT: (C)2003,JPO</p> |
