Slag salvaging spiral device for separating scum of regenerated lead alloy

The utility model discloses a scum salvaging spiral device for separating regenerated lead alloy scum, which comprises a scum collecting frame and a screen plate fixed on one side of the scum collecting frame, a waterproof cover is fixedly arranged at the top of one end of the scum collecting frame, a motor is arranged in the waterproof cover, and a first half pipe is fixedly arranged at one end, far away from the waterproof cover, of the motor. The first half pipe and the second half pipe are fixed on the stirring shaft of the lead pan stirring machine through the bolts, the bottom of the scum collecting frame is immersed in molten liquid, the waterproof cover is located above the surface of the molten liquid, and when the stirring shaft rotates, the scum collecting frame rotates to gather scum located on the surface of the molten liquid on the screen plate. The motor drives the scum collecting frame to turn over by 90 degrees clockwise through the waterproof cover, at the moment, the net plate is located at