This utility model relates to the field of
sludge removal devices, specifically a
sludge removal device utilizing pulsed
airflow in
sewage pipelines. It includes a manhole in a gentle slope section, a manhole upstream of a
steep slope, a manhole downstream of a
steep slope, an
airflow collection device, an air collection
pipe, and an
aeration ring. The manholes in the gentle slope section, upstream of the
steep slope, and downstream of the steep slope are connected sequentially via
sewage pipelines. The downstream manhole includes a chamber and a shaft. A
sludge hopper is installed inside the chamber, and the
airflow collection device is installed in the shaft. The airflow collection device is connected to one end of the air collection
pipe, which has multiple
branch air collection pipes. The ends of the
branch air collection pipes are connected to the
aeration ring fixed inside the
sewage pipeline. This utility model collects pulsed airflow generated at points of significant slope change in the pipeline and transports it to the upstream sewage pipeline. This generates a large number of fine air bubbles evenly within the pipeline, which adhere to the sludge surface, forming bubble clusters. Under
buoyancy, these bubble clusters rise and flow with the water into the sludge hopper, preventing sludge accumulation and
pipe blockage.