Raw material storage: 1. Mixing hopper: Mixing system's main aim is to the compaction state of material through the low-speed mixing into a loose, to facilitate the transport and packaging. Work through the motor drives the vertical setting in the mixing chamber of stirring shaft rotation, stir shaft is installed on the blades, shaft drive the blades to warehouse material shaking in shear, extrusion, flip, goes on compulsory mixing effect. In the relative movement of material mixing and osteoporosis. In the cone section section of the mixing system (near the discharging mouth) usually can also be equipped with a vibrator. Vibrator using compressed air as power source, the impact of the produce is passed to the warehouse wall, make the material to flow smoothly. 2. Storage bin: Turnover hopper in solid preparation production process is a major turnaround container, material can complete different USES, in the same container to transfer material, raw material such as frequent process, effectively prevent the dust and cross contamination. Fully meet the requirements of GMP pharmaceutical production. This patent technology is proposed, which can obtain the nanogram level sealed performance. Through the compact and efficient fission valve design maximum protection of operating personnel and products. Economical design, convenient installation, allowing a manual operation mode, very suitable for, before the closure of the existing powder conveying system carry on the improvement of impermeability. Optimization of investment costs without clean room and the PPE (personal protective equipment), to meet the needs of the future, can be processed on OEL value higher product, to ensure safe operation environment.