Flat Bottom Grain Storage Silos

The roof of the silos have a 30 degrees slope angle. This angle is nearly 2 degrees less than the filling angle of the grain. By this difference, there would be no grain load at the roof either the silo is full to its top. And a space occur between the grain layer and the inner part of the silo roof. By this space, the grain and steel sheet do not touch each other and no condensation occurs because of the difference between inner and outer temperature of the silo. And, by the ventilation outlet at the roof, natural air circulation exists. This natural air circulation is supported by aeration fans and the grain is stored for a while.