Material storage device of mixing plant

The utility model provides a material storage device for a mixing plant, which relates to the technical field of material storage devices and comprises a storage hopper, a top cover is arranged at the top of the storage hopper, the outer surface of the top cover is inserted into the inner wall of the storage hopper, and a conveniently-detached device is arranged between the storage hopper and the top cover. The bottom of the storage hopper is fixedly connected with a rectangular cylinder, the rectangular cylinder is communicated with the inner wall of the storage hopper, and the threaded rod can drive the rectangular plate connected with the mounting block to move in the vertical direction in the storage hopper and the rectangular cylinder under the action of the threaded rod by arranging the rectangular plate; and when the rectangular plate enters the inner wall of the rectangular barrel, the rectangular plate can isolate the rectangular barrel from the stirring station body in the vertical direction, so tha