机电工程技术2023，Vol.52Issue(12)：150-153,4.DOI:10.3969/j.issn.1009-9492.2023.12.035
基于离散元的对辊式破碎机破碎仿真分析
Simulation Analysis of Roll Crusher Based on Discrete Element Method
摘要
Abstract
In order to study the working performance of roll crusher,a crushing simulation model of roll crusher is established by the commercial discrete element simulation software EDEM,and the crushing model of Tavares is combined to analyze the crusher working condition under different discharge opening gaps,to visualize the crushing process of roll crusher,and to analyze the post-crushing particle size distribution of bulk materials.The results show that with the reduction of roll gap of roll crusher,the negative cumulative yield of ore corresponding to the same screening size is larger,that is,the finer the crushed ore,it is also found that with the reduction of roll gap of roll crusher,the rate of increase in the degree of crushing of ore is slowing down,and the distribution of the negative cumulative yield of ore after crushing under the roller gap of 2 mm and 4 mm is basically the same,which indicates that the reduction of roll gap is not enough to reduce the size of crushed material to a certain stage,and the roll crushers can be used to analyze the crushing process.To a certain stage,the roll crusher after crushing product size distribution is basically the same,analysis of the particle size of the simulated crushing product shows that the Rosin-Rammlar particle size distribution function can be used to describe the particle size of the simulated crushing product of the roller crusher,and the degree of fit is better.关键词
对辊式破碎机/离散元法/破碎仿真/Tavares模型Key words
roll crusher/discrete element method/crushing simulation/Tavares model分类
矿山工程引用本文复制引用
杨琴,刘道修..基于离散元的对辊式破碎机破碎仿真分析[J].机电工程技术,2023,52(12):150-153,4.基金项目
国家自然科学基金资助项目(51464017) （51464017）
