Ozonation desalting equipment and desalting method for sea sand

The invention relates to ozonation desalting equipment and a desalting method for sea sand. The equipment comprises a treatment box and an ozone generator, wherein a feed hopper communicated with theinside of the treatment box is arranged at a material input end of the upper part of the treatment box, an ozone water inlet pipe is arranged at an input end of the feed hopper, at least two screw propellers are longitudinally arranged in the treatment box in the material conveying direction at intervals, a screw conveyor is arranged in the treatment box and at a material output end, an output endof the screw conveyor extends out of the treatment box, and a plurality of aeration pipes are uniformly distributed in the bottom of the treatment box, a plurality of vent holes are formed in the aeration pipes, input ends of the aeration pipes are connected with the ozone generator through pipelines, an overflow port is formed in the circumferential side of the upper part of the treatment box, and a sewage drain port pro