In order to solve the problems such as large dependence of working parameters of wheat vibra-ting screen equipment on test and poor screening effect,according to the morphological characteristics of wheat grains,the single-layer vibrating screen structure was designed by using EDEM software and spher-ical particle filling method,and the discrete element simulation model of wheat vibrating screen was estab-lished.The screening process was simulated when the vibration frequency of the vibrating screen is 7 Hz,8 Hz and 9 Hz respectively.The simulation results showed that under the condition of the same tilting an-gle,vibration amplitude and vibration direction angle,wheat grain accumulation decreased with the in-crease of vibration frequency,and the number of short stems in the wheat collection box is the least at 8 Hz.At 9 Hz,the number of short stems in the wheat collection box is more.Under comprehensive consid-eration,when the vibration frequency is 8 Hz,the operation effect of the vibrating screen is better.
关键词
小麦籽粒/振动筛/振动仿真/离散元
Key words
wheat kernel/vibrating screen/vibration simulation/discrete element
维普
万方数据