In view of the defect that the rice bran collected by the traditional rice milling machine will be mixed with broken rice, the top-suction rice mill with annular duct was designed to separate and collect the rice bran and broken rice in the annular duct. The DEM-CFD coupling simulation method and the sliding mesh method were used to simulate the movement of the motion of particles in the new rice mill. The results show that the fluid velocity in the annular duct is between the suspension velocity of rice bran and broken rice when the wind speed...
