摘要
目的:优化辊式磨粉机I皮磨小麦制粉操作参数,降低制粉能耗。方法:利用EDEM离散元仿真软件,对轧距、喂料量、转速及转速比等关键制粉因素设计Box-Behnken试验,探究操作参数与制粉功率的关系。结果:对齿辊破碎功率影响的显著性排名依次为:转速比、轧距、喂料量、转速比二次项、轧距二次项、轧距和转速比交互、喂料量和转速比交互、轧距和喂料量交互。根据I皮磨粉机出粉要求不同,得到最优参数组合:较细出粉时轧距为0.67 mm、喂料量803.60 kg/(cm·d)、快辊转速537.68 r/min、转速比2.64。较粗出粉时得到低功耗的最佳轧距为0.79 mm、喂料量803.83 kg/(cm·d)、快辊转速576.08 r/min、转速比2.23。结论:仿真模拟结果与实测结果误差在合理范围内,建立的离散元制粉模型可用于小麦制粉时的功率预测。
Objective:To optimize the operating parameters of wheat milling in roller mill I skin mill to reduce the energy consumption of milling.Methods:Using EDEM discrete element simulation software,Box-Behnken test was designed for key milling factors such as roll pitch,feeding amount,rotational speed and rotational speed ratio to investigate the relationship between operating parameters and milling power.Results:The significance rankings of the effects on the toothed roll crushing power were,in order,speed ratio,roll pitch,feed volume,speed ratio quadratic term,roll pitch quadratic term,interaction of roll pitch and speed ratio,interaction of feed volume and speed ratio,and interaction of roll pitch and feed volume.According to the different requirements of the I-skin mill,the optimal parameter combinations were obtained:the finer powder output with a rolling pitch of 0.67 mm,a feeding amount of 803.60 kg/(cm·d),a fast roller speed of 537.68 r/min,and a rotational speed ratio of 2.64,and the coarser powder output with the optimal low-power consumption of 0.79 mm,a feeding amount of 803.83 kg/(cm·d),a fast roller speed of 576.08 r/min,and a rotational speed ratio of 2.23.Conclusion:The error between the simulation results and the measured results is within a reasonable range,and the established discrete element milling model can be used for power prediction in wheat milling.
作者
赵岐峰
武文斌
王雪峰
贾华坡
ZHAO Qifeng;WU Wenbin;WANG Xuefeng;JIA Huapo(Henan University of Technology,Zhengzhou,Henan 450001,China;Zhengzhou Institute of Science and Technology,Zhengzhou,Henan 450001,China)
出处
《食品与机械》
CSCD
北大核心
2024年第3期104-109,共6页
Food and Machinery
基金
河南省重点研发与推广项目(编号:2018304)
河南省重点研发与推广专项项目(编号:222102110392)。
关键词
小麦
磨辊
EDEM仿真
功率模型
wheat
grinding roller
EDEM simulation
power model
