This utility model discloses a propulsion
aeration device based on the principle of
airlift, relating to the field of
wastewater treatment technology. It includes a floating plate, with an
aeration mechanism on one side of the top of the floating plate. The
aeration mechanism includes a fixed
pipe connected to the floating plate. A sliding
pipe is slidably connected to the inner wall of one end of the fixed
pipe, and an
air compressor is installed at the other end. In this utility model, through the arrangement of the aeration mechanism and the fixed mechanism, during use, the
air compressor first starts, injecting gas into the lift pipe through the fixed pipe and the sliding pipe, causing the gas and liquid to mix and form a gas-liquid mixture. The density of the mixture decreases, and the less dense gas-liquid mixture moves upward under
buoyancy, driving the surrounding liquid to flow, forming a circulation or directional propulsion flow. Thus, under the action of gravity, the liquid is lifted and transported, and discharged through the flow
equalization hole. This device can evenly distribute gas into the liquid, forming fine bubbles.