食品与机械2024，Vol.40Issue(10)：93-100,8.DOI:10.13652/j.spjx.1003.5788.2024.80064
基于Rocky Dem的辊式制粉机磨辊结构优化
Optimization of roll structure in rollermill based on Rocky Dem discrete element simulation
摘要
Abstract
[Objective]Designed a roller mill and optimize the structure of the milling system.[Methods]Using the Rocky DEM discrete element method,determined the structural range of key parameters such as the speed ratio of the milling system,roller diameter,tooth top width,and fast roller speed based on the particle size quantity of 1～5 mm.Orthogonal experiments were designed,and the particle numbers in each interval of 1～2,2～3,3～4,and 4～5 mm were obtained by simulation models.The four interval indicators were assigned to the weight using hierarchical analysis.Further the four indicators were integrated into a comprehensive value as the basis for judging the experimental results through TOPSIS.The grinding performance was measured in terms of the comprehensive value and the optimal structure was analyzed visually.[Results]Compared with the initial structure,the number of grinding refined particles increased by 10 196,and the performance of scratch system improved by 14.2%.[Conclusion]The diameter of the grinding roller has the most significant impact on the grinding effect.The optimal structure for the rollermill includes a grinding roller diameter of 270 mm,a fast roller speed of 700 r/min,a speed ratio of 2.7,and a tooth top width of 1.2 mm.关键词
辊式制粉机/磨辊/结构优化/离散元仿真/正交试验Key words
rollermill/grinding roller/structural optimization/discrete element simulation/orthogonal experiment引用本文复制引用
李炎,张磊..基于Rocky Dem的辊式制粉机磨辊结构优化[J].食品与机械,2024,40(10):93-100,8.基金项目
石油天然气装备教育部重点实验室开放基金(编号:OGE202303-21) （编号:OGE202303-21）
