This study takes HunanXianglin series, Chalingerxian series, Huashuo series of high yield of Camellia oleifera fruit planting as a reference to grade harvested C.oleifera fruit and effectively solve the C.oleifera fruit and seed with high damage rate, low rate and low degree of shelling and so on. By analyzing the size distribution of C.oleifera fruit, the relationship between the number of C.oleifera fruit and the transverse diameter of C.oleifera was obtained, and the suitable parameter range was obtained according to the design process of the roller sieve. In order to achieve the C.oleifera fruit treatment complete equipment production, the sieve screen with non-differential arithmetic was determined after production experiment. The related parameters: length is 2.2m; diameter is 0.6m; sieve screen number is 6; Rotating speed is 20r/min; motor power is 0.75kw.

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