The Design And Experimental Study Of Camellia Pericarp Seed Separation

In this paper, the research about separating and cleaning device is introduced both at home and abroad, and the problem of preprocessing of Camellia is analyzed, which explain the importance of the research of the separating machine for the Camellia.The paper begin with the physical properties of the Camellia peel and seeds, by research the properties of the Camellia peel and seeds to find out the methods to separate the peel and seeds, the experiments mainly determine the parameter of the thickness, water content, density, suspended speed and sliding friction angle of the Camellia. By analyzing the data to obtain the relation between them, and research provided the theoretical foundation and the data basis for the design of the device for the peel and seeds separating.On the basis of analyzing the properties of the peel and seed of Camellia and according to the differences of the air kinetics characteristics of the Camellia, the air separation device for the Camellia peel and seeds is designed as well as the separating index. By single factor experiment for the drop angle of the material the height of the material, the angle of the fan and the height of the fan, the regulation of the factors that influence the separating performance are find out. The drop angle has a significant effect on the air separating performance, the drop height has a significant effect on the air separating performance, the angle of the fan has a significant effect on the air separating performance and the height of the fan do not have a significant effect on the air separating performance. By the orthogonal test for the drop angle drop height and the angle of the fan that significantly influence the performance, the best combination is find out, that is drop angel is 25°, drop height is 200mm and the angle of the fan is 15°According to the different coefficient of friction of Camellia, the secondary separate device is designed. The diversion of Geneva wheel is tested and determined. The single factor experiment and orthogonal test are carried on for the rotate speed of the Geneva wheel, angle of the plate and the conveyor vector, in the single factor experiment, the regular of each factor that influence the performance is find out, in the orthogonal test the best combination for the separation is find out, that is conveyor speed is 0.612m/s, the angle of the plate is 30°and the rotate speed of the Geneva wheel is 40.5r/min.