基于EDEM的小型立式粉碎机数值模拟与优化研究  

Small Vertical Disintegrator Based on EDEM Numerical Simulation and Optimization Research

作　　者：邢志中 李贵荣[1] 张海东[1] 陈腾[1] 郭小军[1] 王孟[1] 

机构地区：[1]云南农业大学机电工程学院,昆明650201

出　　处：《食品工业》2017年第1期206-209,共4页The Food Industry

基　　金：云南农业大学博士科研启动基金;云南农业大学学生科技创新创业行动(编号:2016ZKX121)

摘　　要：以中黄39大豆为研究对象,通过离散元软件EDEM对小型立式粉碎机的粉碎过程进行研究,发现在粉碎内腔上部存在一圈速度较慢的颗粒层影响破碎。对此提出粉碎内腔的优化方案,以颗粒在粉碎内腔的平均速度、平均动能和平均压缩力为评价指标进行对比,并在其他因素不变,大豆颗数为100,200和300颗时,进行验证对比。结果显示,随着大豆颗粒的增加,同一粉碎机内3项评价指标均明显降低;在大豆颗数相同时,优化后粉碎机的3项评价指标均高于优化前的粉碎机,其颗粒最大速度均值为10.077 3 m/s,最大动能均值为0.017 2 J,最大压缩力均值为1.059 8 N。Through the discrete element software EDEM grinding process for small vertical mill was studied, putting soybean （Zhonghuang 39） as the research object. The effect was found broken in the upper part of the inner cavity which had a crush ring slow granular layer. In this paper crushing cavity optimization scheme, to particles in the cavity of the average velocity, average kinetic energy and average compression force as evaluation indexes were compared, and when other factors were the same, the soybean grain number was 100, 200 and 300, compared and validated. The results showed that with the increase of soybean grain, with a mill in 3 evaluation indices were significantly lower;, In soybean grain number phase at the same time, the optimized grinder three evaluation indices were higher than before optimization of pulverizer, the maximum particle velocity mean was 10.077 3 m/s, the maximum kinetic energy of the mean was 0.017 2 J, maximum compression force mean was 1.059 8 N.

关 键 词：立式粉碎机 EDEM 数值模拟:大豆 

分 类 号：TS203[轻工技术与工程—食品科学]