Vacuum crystallization device for salt chemical industry

The utility model relates to the technical field of salt chemical industry, and discloses a vacuum crystallization device for salt chemical industry, which comprises a base, fixing components are arranged on the left side and the right side of the top of the base, and a crystallization reaction component is arranged between the two fixing components. According to the vacuum crystallization device for the salt chemical industry, by arranging a servo motor, when the vacuum crystallization device for the salt chemical industry starts to work, the servo motor is started to drive a belt roller to rotate through an output shaft, the belt roller rotates to pull a rotating disc to rotate through a belt, and the rotating disc drives a first circular shaft to pull a connecting rod and a vacuum heating reaction kettle to swing left and right; a solution in the vacuum heating reaction kettle is shaken through cooperation of a spring, and meanwhile, an electric push rod is started to push a driving motor and a stirring sh