Graded screening equipment for mine powder

The utility model discloses graded screening equipment for mine powder. The screening device structurally comprises a screening box, a feeding hopper, a fixing frame, a storage box, a fixing column, abearing, a charging frame and a connecting frame are arranged on the screening box. The feeding hopper is fixedly connected to the upper end of the screening box. The fixing frame is fixedly connected to the lower right portion of the screening box. Wherein the storage box is fixedly connected to the lower left portion of the screening box, the fixing column is fixedly connected to the interior of the screening box, the bearing is fixedly connected to the outer surface of the fixing column, the loading frame is movably connected to the bottom of the interior of the screening box, and the connecting frame is fixedly connected to the upper right portion of the screening box. According to the screening device, the phenomenon that screening is incomplete due to the fact that the flow is too large when powder enters t