QUANTITATIVE ANALYSIS OF THE MIXING CHARACTERISTICS OF SIMULATED BROWN RICE PARTICLES BASED ON THE DISCRETE ELEMENT METHOD

The mixing characteristics and movement principles of brown rice particles in two different types of sprouted brown rice machine tanks were investigated based on the discrete element method. Through numerical simulation, the effects of different mixing process parameters on the mixing uniformity and energy consumption of brown rice particles were quantitatively analyzed. The optimal mixing parameters for blade-type sprouted brown rice machine were 40.16% filling degree and 20 r/min rotational speed and for drum-type sprouted brown rice machine were 37.9% filling degree and 20 r/min rotational speed. In addition, a drum-type sprouted brown rice machine mixing test platform was designed and constructed. Physical tests validated the accuracy of the discrete element simulation outcomes, confirming their consistency with physical test environments in terms of the change rule of the movement state and mixing uniformity of brown rice particles. This paper provides a significant theoretical basis and experimental support for the refinement of the design and the enhancement of the manufacturing process for the sprouted brown rice machine.