Continuous production device for carbonate nanocrystallization purification

The invention belongs to the technical field of carbonate production, and discloses a continuous production device for carbonate nanocrystallization purification, which comprises a carbonate slurry storage tank, a stirring and filtering reactor, a cyclone and a decomposition reactor, the stirring and filtering reactor is further provided with an air inlet for inputting carbon dioxide, an output port is formed in the bottom of the stirring and filtering reactor and connected to the decomposition reactor through a bicarbonate pipeline, and a liquid outlet of the decomposition reactor is connected to the cyclone through a liquid outlet pipeline. A gas outlet of the decomposition reactor is connected to the gas inlet through a carbon dioxide circulating pipeline, a bottom outlet of the cyclone discharges nano carbonate slurry outwards, and an upper outlet of the cyclone is connected to the stirring and filtering reactor. The continuous output of reaction products is realized, the production continuity is ensured,