由国家粮食储备局郑州科研设计院研制的平底粮食筒仓气鼓式清仓装置近日获国家知识产权局授予的实用新型专利证书。该清仓装置利用压力空气的能量把平底筒仓自流完剩下的粮食从圆周方向逐步推向中心出粮口，流出仓外。用柔性材料做成形状如筒仓内壁的桶形充气膨胀膜，上部固定 The flat-bottomed grain drum gas cylinder cleaning device developed by Zhengzhou Research Institute of Designation of State Grain Reserve recently won the utility model patent certificate granted by the State Intellectual Property Office. The clearance device utilizes the energy of the pressure air to push the remaining grain from the bottom of the flat-bottomed silo gradually from the circumferential direction to the grain outlet at the center and out of the warehouse. Made of a flexible material, such as a barrel-shaped inner wall of the inflatable inflation membrane, the upper fixed