Vacuum crystallization device for titanium dioxide production

The vacuum crystallization device for titanium dioxide production comprises a base, the four corners of the middle of the top end of the base are fixedly connected to the bottom ends of supporting columns, the lower portion of the front end of a raw material tank is fixedly connected to one end of a first feeding pipe, and the other end of the first feeding pipe is fixedly connected to the middle of the left end of a feeding pump; and a second electric valve is arranged in the middle of the first discharging pipe. According to the utility model, the liquid level sensor can monitor the volume of raw materials in the raw material tank in real time, the controller can work if the residual amount is detected to be insufficient, and the sealing performance of the crystallization device can be kept by closing the pipeline through the first electric valve and the second electric valve while the feeding pump and the discharging pump stop working; the temperature sensor can monitor the temperature in the crystallizing