Phosphorus-free additive feeding device for relieving water body nutrient enrichment

The utility model discloses a non-phosphorus additive feeding device for relieving water body richness, particularly relates to the field of water body treatment, and comprises a medicament cylinder, a floating plate is arranged at the top of the medicament cylinder, a heavy pull block is fixedly mounted at the bottom of the medicament cylinder, and an extrusion diffusion mechanism is arranged on the outer wall of the medicament cylinder. The extrusion diffusion mechanism comprises a lantern ring fixedly mounted at the top of the medicament cylinder, the lantern ring is fixedly mounted on the inner wall of the floating plate, a plurality of sliding rods are slidably mounted on the inner wall of the lantern ring, a sliding cylinder is fixedly mounted at the tops of the sliding rods, a rubber plate is fixedly mounted at the bottom of the sliding cylinder, and the rubber plate is slidably mounted on the inner wall of the medicament cylinder; according to the phosphorus-free additive adding device, the extruding