The behavior of oil sunflower seeds penetrating screen holes is an important factor that affects the screening performance of oil sunflower seeds.In this study,a double-deck reverse-motion vibrating screening device f...The behavior of oil sunflower seeds penetrating screen holes is an important factor that affects the screening performance of oil sunflower seeds.In this study,a double-deck reverse-motion vibrating screening device for oil sunflower seed screening was designed.The force condition and motion law of the oil sunflower seeds on the screen surface were analyzed.This study compared the effect of particle filling amount of discrete element model of oil sunflower seeds on the simulation effects.The screening process was numerically simulated using the coupled Discrete Element Method and Multibody Dynamics(DEM-MBD)technique with the screening percentage of oil sunflower seeds as the index.The influence of the operating parameters of the vibrating screen on the screening effect was analyzed using a multiparameter collaborative optimization scheme.The results of this study can provide a reference for the numerical simulation of crop screening behavior and the development of screening devices.展开更多
采用响应面优化实验优化超声波辅助提取打瓜籽油的工艺条件,并对其脂肪酸组成进行了分析。结果表明:超声波辅助提取打瓜籽油最佳工艺条件为,粒度60目、料液比1∶8(g∶m L)、超声频率36 k Hz、超声温度50℃,在此条件下打瓜籽油得率可达23...采用响应面优化实验优化超声波辅助提取打瓜籽油的工艺条件,并对其脂肪酸组成进行了分析。结果表明:超声波辅助提取打瓜籽油最佳工艺条件为,粒度60目、料液比1∶8(g∶m L)、超声频率36 k Hz、超声温度50℃,在此条件下打瓜籽油得率可达23.59%,亚油酸含量可达180.03mg亚油酸/g打瓜籽。对最佳工艺条件的打瓜籽油进行气相色谱分析可知,其主要不饱和脂肪酸组成为反油酸、亚油酸,并含有少量的γ-亚麻酸、EPA和DHA,其中,亚油酸含量最高。展开更多
基金Hebei Agriculture Research System HBCT2024040207.
文摘The behavior of oil sunflower seeds penetrating screen holes is an important factor that affects the screening performance of oil sunflower seeds.In this study,a double-deck reverse-motion vibrating screening device for oil sunflower seed screening was designed.The force condition and motion law of the oil sunflower seeds on the screen surface were analyzed.This study compared the effect of particle filling amount of discrete element model of oil sunflower seeds on the simulation effects.The screening process was numerically simulated using the coupled Discrete Element Method and Multibody Dynamics(DEM-MBD)technique with the screening percentage of oil sunflower seeds as the index.The influence of the operating parameters of the vibrating screen on the screening effect was analyzed using a multiparameter collaborative optimization scheme.The results of this study can provide a reference for the numerical simulation of crop screening behavior and the development of screening devices.
文摘采用响应面优化实验优化超声波辅助提取打瓜籽油的工艺条件,并对其脂肪酸组成进行了分析。结果表明:超声波辅助提取打瓜籽油最佳工艺条件为,粒度60目、料液比1∶8(g∶m L)、超声频率36 k Hz、超声温度50℃,在此条件下打瓜籽油得率可达23.59%,亚油酸含量可达180.03mg亚油酸/g打瓜籽。对最佳工艺条件的打瓜籽油进行气相色谱分析可知,其主要不饱和脂肪酸组成为反油酸、亚油酸,并含有少量的γ-亚麻酸、EPA和DHA,其中,亚油酸含量最高。