Effervescent tablet screening device with low breakage rate

The utility model relates to a low-breakage-rate effervescent tablet screening device which comprises a material dispersing component, a material screening component and an air exhaust component, and the material dispersing component can evenly disperse effervescent tablets on a material dispersing groove plate to a certain extent and convey materials through a first vibrator; wherein the material screening part is matched with the material dispersing part, effervescent tablets conveyed by the material dispersing part can be received through a screen trough plate and screened so as to screen out broken effervescent tablet impurities, and in the screening process, the arranged air exhaust part can be matched to suck away effervescent tablet powder impurities below an air exhaust cover so as to avoid powder dispersion; and meanwhile, the impact force between the effervescent tablets and the screen trough plate in the vibration process can be reduced, so that the fragmentation probability of the complete efferve