The utility model relates to the technical field of
sewage treatment, and particularly discloses a uniformly-mixed
aeration device for
sewage treatment, which comprises a box body, a first air inlet
pipe is rotatably connected in the box body, a second air inlet
pipe is slidably connected to the outer wall of the first air inlet
pipe, and a rotary joint is mounted at the upper end of the first air inlet pipe; the upper end of the first air inlet pipe is rotatably connected with a third air inlet pipe, the outer wall of the second air inlet pipe is communicated with a plurality of
aeration pipes, a plurality of air holes are formed in the outer walls of the
aeration pipes, two sliding rails are fixedly connected to the outer wall of the first air inlet pipe, and two sliding grooves matched with the sliding rails are formed in the inner wall of the second air inlet pipe; through cooperation of a driving motor, a
rotating disc, a third connecting rod, a spur rack, a second gear, spiral teeth, a first gear, a first connecting rod, a second connecting rod, a third connecting rod, a roller, a limiting groove, a sliding groove and a sliding rail, an aeration pipe can be driven to reciprocate up and down while rotating in a reciprocating manner, so that gas discharged by the aeration pipe is fully and uniformly mixed with
sewage, and the aeration effect is good.