The working principle of rice-rough separation screen is mainly to use the physical property differences between rice and brown rice in terms of specific gravity, particle size, friction coefficient, etc., and realize automatic separation by shaking the separation plate. Specifically:
Physical property difference: The rice-rough separation screen uses the differences between rice and brown rice in terms of specific gravity, particle size, friction coefficient, etc. These differences enable the mixture to be automatically stratified under the action of the shaking separation plate.
The role of the shaking separation plate: Under the action of the horizontal reciprocating shaking separation plate, the rice-rough mixture gradually separates automatically. Brown rice with high specific gravity and small particle size sinks, while rice with low specific gravity and large particle size floats on the upper layer of brown rice. This stratification is achieved through the transport action of the bidirectional inclined convex separation plate, so that the brown rice moves obliquely upward to the outlet above the separation plate, while the rice slides obliquely downward to the outlet below the separation.
Function of eccentric shaft and eccentric wheel: Through the eccentric action of eccentric shaft and eccentric wheel, combined with the regular uneven particle structure on the plane of the sieve plate, the separation of different objects is further promoted through low-speed operation.
This working method effectively achieves the separation of brown rice and paddy in the rice-brown mixture