In the cleaning process of the flour mill, because the feeding mechanism of the vibrating screen can not effectively control the flow rate of the material, it is necessary to properly adjust the flow control device at the front end of the process where the screening device is located, so that the vibrating screen can be in a good working state.

Through the adjustment of the feeding mechanism, the material should be evenly stable and enter the screen surface in the same state as the screen surface. When the flow on both sides of the screen surface is not equal, the raft should be adjusted to make the flow uniform.

When used in the initial cleaning, it should prevent blockage caused by excessive flow. When the material flow is difficult and the automatic classification is insufficient, the amplitude can be appropriately increased.