In the production line for producing livestock feed, more storage bins are often required to store and transfer raw materials or semi-finished products. Existing feed storage silos generally include a silo body, a feed inlet provided at the top of the silo body, and a discharge outlet provided at the bottom of the silo body. The raw materials or feed pellets after granulation are generally distributed to different storage bins by rotary distributors. When they fall into the storage bins, a lot of dust is generally stirred. If they enter the workshop, they will be harmful to workers. Bodily injury and pollution of the workshop environment. If there is no vent, the air pressure in the storage bin will increase, which will cause blocking of the rotary distributor. In addition, the moisture resistance of feed particles and their raw materials is also the feed production process One of the important tasks that cannot be ignored.