The invention provides an automated storage bin. The automated storage bin comprises a storage bin main body and a discharge device, wherein, the storage bin main body comprises a cement shell, the outer wall of the cement shell is coated with a waterproof adhesive layer, and the inner wall of the cement shell is lined with a polyethylene (PE) plate; a feed pipe of the storage bin body is equipped with a rotary valve; a connecting pipeline between the storage bin body and the discharge device is sequentially equipped with a manual butterfly gate and a pneumatic butterfly valve; a lower cover of the discharge device is equipped with an automatic full charge control instrument and a lifting winch; and a discharge port of the discharge device is connected with a lifting cloth bag, and the lifting cloth bag is raised or lowered by means of the lifting winch. By utilizing the automated storage bin, automatic discharge, automatic charge, automatic dust collection and automatic loading can be realized, thus the storage bin has high automation degree; and a control system is controlled by a Siemens S7-300CPU (central processing unit) controller. After the dried and calcined three-phase gypsum material enters the automated storage bin through the rotary valve to stay for three days, the three-phase gypsum powder can be modified into semi-hydrated gypsum powder, and meanwhile purity and quality of the semi-hydrated gypsum powder can be greatly improved.