Screening device for coarse and fine sand in ore pulp

The utility model discloses an ore pulp internal coarse and fine sand screening device which comprises a screening cylinder, a feeding cylinder is arranged on the upper surface of the screening cylinder, a conical screen is arranged in the screening cylinder, a servo motor is arranged on the upper surface of the screening cylinder, and an output shaft of the servo motor penetrates into the screening cylinder and is connected with a rotating shaft through a coupler. A plurality of stirring plates are evenly and obliquely arranged at the bottom end of the rotating shaft, the lower surfaces of the stirring plates are tightly attached to the upper surface of the screen, cleaning mechanisms used for dredging screen holes are arranged on the stirring plates, sand to be screened enters the screening barrel through the feeding barrel and falls onto the screen, and in the screening process, the servo motor drives the stirring plates to rotate through the rotating shaft. And sand on the screen is stirred, so that the s