Treatment device for extracting potassium fluosilicate from tantalum-niobium hydrometallurgy acid wastewater

The utility model discloses a treatment device for extracting potassium fluosilicate from tantalum-niobium hydrometallurgy acid wastewater, which comprises a tank body, a heating box is sleeved on the outer side of the tank body, a triangular bracket is fixedly arranged at the bottom end in the tank body, and bearings are embedded at the upper end of the triangular bracket and the center of the top end in the tank body. A plurality of stirring blades are arranged on the outer side of the stirring shaft in a sleeving mode, bearings are fixedly installed at the upper end and the lower end of the interior of the stirring shaft, a connecting shaft is arranged between the bearings in a sleeving mode, the bottom end of the connecting shaft extends to the bottom of the stirring shaft, and a scraping plate is arranged on the bottom end of the connecting shaft in a sleeving mode; a water outlet pipe is embedded in the bottom side of the tank body, wastewater and a solvent in the tank body are fully mixed by arranging