Float glass raw material silica sand feeding and iron removing device

The utility model discloses a float glass raw material silica sand feeding deironing device which comprises a mounting plate, an outer supporting cylinder is mounted on the upper surface of the mounting plate, a supporting plate is arranged in the outer supporting cylinder, a support for a lead screw is mounted on the supporting plate, a lead screw is mounted in the support for the lead screw, and the upper surface of the mounting plate is provided with an outer supporting cylinder. The lead screw is driven by a first motor to rotate, a nut is mounted on the lead screw, a connecting plate is mounted on the nut, an inner supporting cylinder is arranged outside the connecting plate, the upper end of the inner supporting cylinder penetrates through the upper side wall of an outer supporting cylinder, a mounting box is arranged on the outer upper surface of the inner supporting cylinder, and a bearing seat is mounted on the upper side wall of the mounting box; and a bearing is installed in the bearing seat, a rot