弹球清筛对荞麦分级效率影响的试验研究  

Experiment Study of the Influence of Bouncing Ball Screen Cleaning on Buckwheat's Grading Efficiency

作　　者：常荣[1] 杜文亮[1] 陈伟[1] 政东红 刘广硕[1] 

机构地区：[1]内蒙古农业大学机电工程学院,呼和浩特010018

出　　处：《农机化研究》2016年第3期187-190 195,195,共5页Journal of Agricultural Mechanization Research

基　　金：国家自然科学基金项目(3126049)

摘　　要：荞麦属于难筛粒,生产加工前对其进行分级时,分级筛堵筛严重。为此,对影响荞麦分级效率的筛体振动频率、喂入量、弹球数量等因素进行了单因素及正交试验研究。试验结果显示:弹球在荞麦分级过程中清筛效果显著;当分级筛框格长度为65mm,且每个框格中放置7个直径为30mm的硅胶弹球、筛体振动频率为8.22Hz、喂入量为7.1 2 kg/min时,分级效率较好,达到9 8.6 9%Buckwheat is near mesh particle .When grading it before production processing , blinding is severe .The ex-periment study of factors including vibration frequency , feeding rate , and the number of bouncing ball that influence grading efficiency was conducted .The results show that the screening cleaning effect of bouncing ball is remarkable in the grading process.When the length of box is 65mm, the number of bouncing ball is 7 in each box, silica gel bouncing ball is 30mm in diameter, vibration frequency is 8.22Hz and feeding rate is 7.12kg/min, grading efficiency reaches 98 .69%.

关 键 词：荞麦 清筛 弹球 分级 

分 类 号：S226.5[农业科学—农业机械化工程]