新型贯流式谷物清选装置中物料运动规律研究

cross-flow air separation unit for grain was designed by employing the cross flow blower. The threshed grain mixtures motion law in the cleaning device was analyzed by high-speed photography. Five experimental factors of the cleaning device are determined firstly. Then the airflow cleaning of the threshed mixtures was implemented according to the multi-level mixed orthogonal experiment table. The motion trajectories of the grain and impurities were measured by high-speed photography, which were compared with the theoretical ones. By setting the distance between the grain and impurities in the horizontal direction as the airflow cleaning performance index, the experimental data were processed by range analysis and variance analysis to determine the effect of each factor on the index.