Sand screening device for producing sintered sand for real stone paint

The utility model discloses a sand screening device for producing sintered sand for real stone paint, and belongs to the field of real stone paint production equipment.The sand screening device comprises a device body, a feeding port is formed in the top of the device body, and a first screen and a second screen which are parallel and can slide up and down are arranged in the device body; discharging openings are formed in the positions, at the left ends and the right ends of the first screen and the second screen, of the side face of the device body correspondingly, the bottom end of the interior of the device body is slidably connected with a material collecting box used for collecting the real stone paint screened by the second screen, and a driving mechanism used for grinding the real stone paint and vibrating the first screen and the second screen is assembled in the device body. The driving mechanism comprises two grinding rollers which are symmetrically arranged in the feeding hole and a cam block whic