Part of the fun of building scale models is the research and learning about a new industry. However, the more I learn, the more questions that I have and less confidence about what I thought I had figured out. I just completed what I thought was a “bag house”. However, if this was a bag house, there would have been a dirty air inlet towards the bottom and a clear air outlet on top. Instead, the photo shows an inlet pipe coming directly from the bucket elevator. Therefore, I think this is a surge bin (or feed hopper). If anyone knows better, please let me know. Next, the silos, bin, and elevator get tied together with pipes and catwalks.