Magnetic separating unit and separating method

The invention relates to a separating unit and a separating method, belongs to the technical field of sewage disposal, and particularly relates to the magnetic separating unit and the separating method. The magnetic separating unit comprises a belt transmission gear with a slope face, wherein the upper part of the slope face is provided with a water distributor for evenly spreading the fluid on the belt, and the bottom part thereof is at least partially located in a magnetic field zone; the lower part of the bottom part of one end of the slope roof of the belt transmission gear is provided with a magnetic seed recycling zone, and the lower part of the bottom part of the other end thereof is provided with a discharge opening; a device for separating the magnetic seed from the belt mechanically and/or a spraying device is/are arranged between the magnetic seed recycling zone and the discharge opening. Therefore, the device and the method apply multiple recycling technologies such as roll brush, spraying and oth