| 摘要 |
Procedure for loosening up fine grain goods stored in a silo in order to achieve better discharge conditions by which compressed air is blown in the silo through porous elements arranged in the silo bottom. The porous elements are arranged in concentric zones and each zone is individually supplied with air. The zone adjoining the silo outlet is supplied with air first and the supply of air to other zone is controlled in accordance with the quantity of goods remaining in the silo. Each of the zones is divided in sectors (2a to 2d) or (3a, 3d) from which one sector after another in one zone are progressively supplied with air. The adjoining zones are at the same time supplied with air in sectors which are positioned radially opposite sectors already supplied with air. |
