Nitrate removal device based on resin

The utility model relates to the technical field of nitrate removal, and discloses a resin-based nitrate removal device which comprises a box body and a cover plate, protective covers are fixedly arranged on the two sides of the outer wall of the box body, electromagnets are fixedly arranged at the bottoms in the protective covers on the two sides, and limiting grooves are formed in the two ends of the upper surface of the box body. Grooves are fixedly formed in the two sides of the upper surface of the box body, sliding grooves are formed in one sides of the inner walls of the grooves in the two sides, sliding blocks are slidably arranged on the inner walls of the sliding grooves in the two sides, and clamping pins are fixedly connected to the side walls of the sliding blocks in the two sides. According to the resin-based nitrate removal device disclosed by the utility model, a magnetic field is formed in the box body through the electromagnet to drive an aqueous solution to move, so that the resin-based nit