Traditional cylindrical and rectangular storage containers have long plagued grain elevators and feed processing factories with common operational problems, including material compaction, uneven discharging, dead storage zones and frequent equipment wear. These recurring issues lead to residual raw material accumulation, manual cleaning downtime and unstable production efficiency, especially when handling wet barley, compound feed powder and mineral fertilizer materials. The upgraded spiral raw material bunker solves these industry pain points through innovative internal geometric structure, achieving efficient, stable and fully automatic bulk material storage and discharging.