Boron-magnesium fertilizer continuous grain separation device

The utility model discloses a boron magnesium fertilizer continuous grain separating device, which relates to the technical field of fertilizer preparation equipment, and comprises a pair of vertical plates and a main conveyor belt, the main conveyor belt is arranged at the lower half part between the side walls of the pair of vertical plates, and a rolling separation structure is arranged between the pair of vertical plates and above the center of the main conveyor belt. The rolling separation structure comprises a synchronous driving assembly, a pair of driving conveying belts, a rotating rod, a mounting plate and a pressing plate, the pair of driving conveying belts are arranged at the opposite positions of the inner side walls of the pair of vertical plates correspondingly, and the two ends of the rotating rod are fixedly connected with the opposite positions of the pair of driving conveying belts correspondingly; according to the continuous particle processing device, continuous particle raw materials on