Storage and supply equipment for powder center

The utility model discloses storage and supply equipment for a powder center. The utility model discloses a concrete storage tank, belongs to the technical field of concrete storage equipment, and aims to solve the technical problem of concrete waste caused by the fact that concrete is adhered to the inner wall of the storage tank in a discharging process, and adopts the technical scheme that theconcrete storage tank comprises a storage tank body, a placement block is fixedly connected to the side surface of the storage tank body, and a knocking gap is formed between the placement block and the storage tank body; a knocking cavity is formed in the placing block; a knocking rod is slidably connected to the position, facing the storage tank, of the knocking cavity, and the end of the knocking rod faces the side wall of the storage tank; a reset elastic piece is arranged at the end, located in the knocking cavity, of the knocking rod. The storage tank is provided with an attraction assembly at the position facin