| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable easily removing the clogging of an air diffusing pipe and an air sending pipe by installing the air sending pipe communicating with the air diffusing pipe and also freely attachably and detachably connecting the air sending pipe and an air feeder above the surface of the liquid and installing a cleaning brush to be freely movably operated in the air sending pipe. SOLUTION: Below membrane units 7, an air diffusing pipe 3 is installed, and to the air diffusing pipe 3, an air sending pipe 4 connected to a blower 8 its connected. A part of the air sending pipe 4 is expanded to form a brush housing part 5, in which a cleaning brush 15 is housed. An operating string 16 is connected to the cleaning thrush 15, which can be moved in the air sending pipe 4 and the air diffusing pipe 3 thereby. And the air sending pipe 4 and the blower 8 are freely attachably and detachably connected by a joint 13. When sludge is accumulated in the air diffusing pipe 3 and the air sending pipe 4 and diffused air from the air diffusing pipe 3 is insufficient, the sludge within the air diffusing part 3 and the air sending pipe 4 can be easily removed.</p> |
