Photocatalytic algae removal device for river channel based on magnetic floating catalyst

The utility model discloses a photocatalytic algae removal device for a river channel based on a magnetic floating catalyst. The device comprises a reaction tank, a screen, a grid lifting assembly and a catalyst feeding and recycling assembly. And the bottom of the reaction tank is open and is provided with a screen. The grating lifting assembly is arranged in the reaction tank and comprises a grating plate and a lifting driving assembly. The transparent grating plate is connected in the reaction tank in a sliding manner along the vertical direction and is driven by the lifting driving assembly to do lifting motion. And a plurality of catalyst feeding and recycling assemblies are arranged around the reaction tank. The catalyst feeding and recycling assembly comprises a feeding bin, a solar panel, a conveying rail, an electromagnet and a recycling bin. According to the utility model, photocatalytic materials in the reaction tank are separated through the grids with good light transmission, so that the light ut