The utility model discloses a
pesticide fluorination reaction
crystallization device which comprises a reaction kettle body, a shell is arranged on the outer wall of the reaction kettle body, an
ultrasonic generator is installed on one side of the circumferential outer wall of the shell, transducers are arranged at the bottom of the reaction kettle body in an
annular array mode, and the
ultrasonic generator is installed on one side of the circumferential outer wall of the shell. The reaction kettle body is provided with a stirring
assembly used for stirring materials in the reaction kettle body, a feeding
assembly used for feeding seed crystals into the reaction kettle body, and a driving
assembly used for driving the stirring assembly and the feeding assembly. According to the reaction kettle, fine
crystal nucleuses can be broken, excessive
crystal nucleuses in the reaction kettle body can be reduced, so that the crystals grow more uniformly, the
mass transfer efficiency is enhanced, the cooling process is more uniform, the phenomenon of local
supercooling and
superheating is avoided, stable growth of the crystals is facilitated, and the crystals are promoted to grow to a larger particle size; and subsequent
solid-liquid separation and screening are facilitated.