Flame retardant production and purification device

The utility model discloses a flame retardant production and purification device, which relates to the technical field of flame retardant purification and comprises a separation tank, the separation tank is a constant-temperature tank, a separation sieve assembly is arranged in the separation tank and comprises a rotating shaft, one end of the rotating shaft is connected with a first motor, and the other end of the rotating shaft is connected with a second motor. The other end of the rotating shaft is connected with a screen capable of rotating along with the rotating shaft, the first motor isconnected with a controller, the screen is arranged to be in an arc shape with an upper opening, a plurality of scraping plates are arranged in the circumferential direction of the screen and abut against the inner wall of the separation tank, and a first stirring rod set coaxial with the rotating shaft is arranged above the screen; the first stirring rod set is arranged to be of an inverted triangular structure, a first