动筛跳汰机筛板孔形设计与实验  

Design and Experiment of Moving Sieve Jig Sieve Plate Hole Shape

作　　者：张艳军[1] 雷美荣[2] 武维承[2] Zhang Yanjun Lei Meirong Wu Weicheng(Building and surveying and mapping engineering college of Shanxi Datong University, Datong, Shanxi, China Mechanical and electrical engineering college of Shanxi Datong University, Datong, Shanxi , China)

机构地区：[1]山西大同大学建筑与测绘工程学院,山西大同037003 [2]山西大同大学机电工程学院,山西大同037003

出　　处：《矿产综合利用》2017年第4期115-118,128,共5页Multipurpose Utilization of Mineral Resources

基　　金：山西省科技攻关计划"筛分过程中同步控制限上率和限下率的技术开发和应用研究"(20130321026-04);大同大学校级科学研究项目(2013k3);大同市科技局科技创新项目(2015111)

摘　　要：针对动筛跳汰机现有长方形孔筛板开孔率偏小,透水性差,物料易堵塞筛孔等问题,采用理论分析与试验研究相结合的方法,分析了筛板透筛机理和透筛物形成的原因,理论计算了长方形孔筛板的开孔率。为了增大开孔率,优化设计出圆弧形波浪形孔筛板,其理论开孔率相对于直条式长方形孔筛板的理论开孔率增加了10.2%。对两种不同孔形筛板进行工业性对比试验,试验结果表明:大开孔率的圆弧形波浪形孔筛板,透水性好,有效的降低了透筛物的数量和灰分。该结构为动筛跳汰机筛板设计提供一定的基础依据。In view of the questions such as existing rectangle hole sieve plate small opening rate, poor permeability, the material easy to plug mesh, and so on, by adopting the combination of theoretical research and experimental a- nalysis method, the sieve plate penetrating mechanism and the formation reason of screening material were analyzed and the rectangular hole opening rate of sieve plate was theoretically calculated. In order to increase the opening rate, by optimizing design of circular arc form wavy hole sieve plate, the theoretical opening rate relative to the straight bar type rectangular hole sieve plate was increased 10.2%, the industrial comparison tests which show that circular arc form wavy hole sieve plate which is of Large opening rate has good permeability, which effectively reduces the Screening material number and ash content. The structure of circular arc form wavy hole sieve plate pro- vides basic referrence for moving sieve jig sieve plate design.

关 键 词：开孔率 筛板 透水性 透筛物 灰分 

分 类 号：TD353[矿业工程—矿井建设]