Comprehensive utilization method and device for iron ore tailings

The invention relates to the technical field of iron ore tailing treatment, in particular to an iron ore tailing comprehensive utilization method and device which comprises a base, the left end of the base is fixedly connected with a controller, the top end of the base is fixedly connected with a flow guide plate, one end of the flow guide plate is fixedly connected with a supporting rod, and the supporting rod is fixedly connected with a limiting frame. A guide plate is fixedly connected to the inner side of the rear end of the base, a filter screen is rotatably connected to one end of the guide plate, a guide rail is fixedly connected to the inner side of the rear end of the base, a sliding block is slidably connected to the outer side of the guide rail, a fixing shell is fixedly connected to the top end of the sliding block, and a first motor is fixedly connected to the inner side of the rear end of the fixing shell. Through the arrangement of the rotating disc, the push rod, the guide rod, the first sprin