Shellfish screening unit and grading equipment comprising same

The utility model discloses a shellfish screening unit and grading equipment comprising the shellfish screening unit, the shellfish screening unit comprises a screen drum mechanism, the screen drum mechanism comprises a support frame body, a screen drum and a driving mechanism used for driving the screen drum to rotate; the flow guide groove is formed in one side of the screen drum, and an inclined flow guide wall body is arranged in the flow guide groove; the jigging mechanism comprises a jigging plate and a jigging driving mechanism which is arranged at the bottom of the jigging plate and is used for driving the jigging plate to jig up and down; the shellfish grading equipment is provided with a plurality of shellfish screening units with different screen hole diameters, in the rotary screening process of the screen drum in the screen drum mechanism, clams with the size specification smaller than that of the screen holes fall into the screen drum to be screened, and clams with the size specification larger