Application study of water-erosible materials in water-induced separation device;

) and according to the principle of specific gravity and using the method of double decker filter, the new separating device for eggs of striped flea beetle in crucifer vegetable filed was design and made.

The separating device was designed to solving key questions of sugar transplanter high-speed separation and order supply for seedlings.

The study was according to the single parameter on the axial threshing and separating unit test bed,and concave clearance had an effect on its work performance was analyzed.

Design and developed the gravity -fed three-product dense medium cyclone which with pre-separation device, so the problems of clean coal contaminated by refuse and clean coal smuggled into middlings was resolved, increased the sharpness of separation and yield.