Grinding medium lifting device

The utility model discloses a grinding medium lifting device which comprises a shell and a rotary lifting device arranged in the shell. Wherein the rotary lifting device comprises an upper chain wheel, a lower chain wheel, a rotary chain and a groove type lifting bucket. A grinding medium flows down to the groove-shaped lifting bucket from the medium inlet of the lifting device, and then flows down to the medium outlet from the groove-shaped lifting bucket along with the rising of the rotary lifting device, and the overall flow of the grinding medium is in a forward self-flowing type design (namely, the direction from the medium inlet to the medium outlet is consistent with the overall flow direction of the grinding medium, and the grinding medium flows down to the groove-shaped lifting bucket along with the rising of the rotary lifting device. And meanwhile, the position of the feeding end of the groove-shaped lifting hopper is higher than the position of the discharging end of the groove-shaped lifting hopp