| 摘要 |
Dry particulate material, such as seed or fertilizer is distributed in the soil of an agricultural field. The particulate material is carried in a hopper and delivered from the hopper using an auger type conveyor. A manifold associated with a section of the auger tube distributes the particulates to several supply tubes, each which in turn supplies the particulates to a delivery tube associated with a furrow opening sweep. The conveyor supplies particulate material to the manifold at a rate in excess of the feed rate of the material to the soil, so that there is an excess and the manifold is always full. The excess material is returned to the hopper through an overflow tube. The system is gravity flow, with seed and fertilizer being discharged from the manifold by gravity and transported along the supply tube by gravity. |
