东南大学学报（英文版）2022，Vol.38Issue(2)：158-165,8.DOI:10.3969/j.issn.1003-7985.2022.02.007
双滚筒再生拌和站搅拌均匀性影响因素显著性与相互作用仿真分析
Simulation analysis of significance and interaction of influencing factors on mixing uniformity of double-drum recycling mixing plant
摘要
Abstract
To examine the influence of the structural parameters and working parameters of a double-drum regeneration mixing station on its mixing uniformity,the influence of the discrete element method and response surface method on the uniformity of the aggregate mixing when the interaction between two different factors was analyzed.A mathematical model of the influence of various factors and interactions on the coefficient of variation of the aggregates was established.The matching of each parameter was optimized with the goal of minimizing the coefficient of variation.The results show that when the aggregate particle size is different,the significance of each parameter affecting its mixing uniformity is also different.Moreover,increasing the speed and reducing the axial installation angle of the blade can reduce the coefficient of variation of the three aggregates.To obtain a good mixing uniformity,the mixing-arm phase angle when the drum inclination angle is large should be smaller than the phase angle when the drum inclination angle is small,and the mixing of large particles should not be arranged with a large mixing-arm phase angle.With a blade radial installation angle of 38°,a blade axial installation angle of 35°,a drum inclination angle of 6°,a drum rotation speed of 10 r/min,and a mixing-arm phase angle of 32°,the aggregate as a whole can exhibit the best mixing uniformity.关键词
双滚筒再生搅拌站/搅拌均匀性/响应面方法/离散元法/显著性与相互作用分析Key words
double-drum recycling mixing station/mixing uniformity/response surface method/discrete element method/significance and interaction analysis分类
交通工程引用本文复制引用
马登成,桂学,李旋,马成林..双滚筒再生拌和站搅拌均匀性影响因素显著性与相互作用仿真分析[J].东南大学学报（英文版）,2022,38(2):158-165,8.基金项目
The Natural Science Basic Research Plan in Shaanxi Province(No.2017JM5077),the Fundamental Research Funds for the Central Universities under Grant(No.300102259109). （No.2017JM5077）
