Breeding seed screening system

The embodiment of the invention relates to a breeding seed screening system which comprises a workbench, an air bellow arranged on the workbench, a recycling channel arranged on the workbench, a storage bin arranged on the workbench and located between the air bellow and the recycling channel and a pipeline connected to the bottom face of the storage bin. In the direction far away from the air bellow, the distance between the bottom face of the recycling channel and the workbench tends to be reduced firstly and then remains unchanged, and the distance between the top face of the recycling channel and the workbench remains unchanged. According to the breeding seed screening system disclosed by the embodiment of the invention, a certain amount of bran, non-full particles and the like doped in seeds are screened out in a winnowing mode. 本申请实施例涉及一种育种种子筛分系统，包括工作台、设在工作台上的风箱、设在工作台上的回收通道、设在工作台上且位于风箱与回收通道之间的存储仓和连接在存储仓的底面上的管道，回收通道的输入端朝向风箱，在远离风箱的方向上，回收通道的底面与工作台之间的距离首先趋于减小，然后保持不变，回收通道的顶面与工作台之间的距离保持不变。本申请实施例公开的育种种子筛分系统，通过