The invention discloses a zero-energy automatic
sewage disposal unit for a
prawn breeding pond. The zero-energy automatic
sewage disposal unit for the
prawn breeding pond comprises the breeding pond,wherein a
sewage outlet is formed in the bottom of the breeding pond; a
turbine is arranged above the sewage outlet; a
turbine cover is arranged above the
turbine; a connecting shaft is arranged at the upper end of the turbine, penetrates through the turbine cover and is movably connected to the inside of an anti-escaping cover; connecting rods are arranged on two sides of the connecting shaft; and a scraper blade is arranged on each connecting rod. The sewage outlet is formed in the bottom of the breeding pond, thus, breeding sewage is convenient to drain, the turbine is arranged above the sewage outlet, during draining of sewage, the turbine is driven by power of
water flow, then the connecting rods on two sides of the connecting shaft are driven, a scraper blade arranged on each connecting rod drives the
water flow, thus, ring flow is formed on the periphery of the center of the pond, finally,
dirt is driven to be collected to the center of the pond, and is discharged out of the pond, by the turbine cover arranged above the turbine, influences of the
water flow to the portion over the turbine can be reduced, and thus, the rotating speed of the turbine is increased. The device issimple in structure, convenient to operate and suitable for being popularized on a large scale.