Method for producing and crystallizing edible salt

The present invention relates to the technical field of edible salt production, particularly to an edible salt production crystallization method, which comprises a thermal crystallization device and a filtration device, the thermal crystallization device is located at the top of the filtration device and is connected with the filtration device, the thermal crystallization device comprises a top cylinder, the top cylinder is internally provided with a vaporization assembly, and the vaporization assembly is connected with the filtration device. According to the invention, seawater is pretreated by using the filtering device so as to remove impurities in the seawater, and the seawater is concentrated so as to increase the salt content of the seawater in unit volume; the centrifugal liquid spraying assembly is used for slowly spraying the treated seawater on the barrel wall of the evaporation barrel, and meanwhile, the thermal crystallization device is used for performing thermal crystallization on the seawater o