基于条形筛网的机制碎石针片状颗粒透筛效果研究  

Study on the screening efficiency of flat-elongated aggregates based on strip mesh

作　　者：彭喜 邵建峰[1] 姚绍武 姚金根 PENG Xi;SHAO Jianfeng;YAO Shaowu;YAO Jingen(School of Economics and Management,Nanjing University of Technology,Nanjing Jiangsu 211800,China;Huzhou Xinkaiyuan Crushed Stones Co.,Ltd.,Huzhou Zhejiang 313022,China)

机构地区：[1]南京工业大学经济与管理学院,江苏南京211800 [2]湖州新开元碎石有限公司,浙江湖州313022

出　　处：《化工矿物与加工》2020年第12期14-18,共5页Industrial Minerals & Processing

基　　金：国家自然科学基金项目(71671089)。

摘　　要：为研究机制碎石针片状颗粒在不同条件下的透筛率及针片状颗粒筛分效果的影响因素,设计了三因素(筛网孔径、倾斜角度、料层厚度)四水平的正交试验,对试验结果进行了Pearson相关性分析,结果表明:筛网孔径、倾斜角度、料层厚度与透筛率和针片状颗粒筛分效果存在强相关性,其影响大小排序为筛网孔径>倾斜角度>料层厚度;筛网倾角不应过大,当倾角在10.81°以下时,提高筛网倾角可以提高针片状颗粒指向性筛分效果。In order to study the passage through the screen for screening aggregates produced by crusher under different conditions and the factors affecting the sieving effectiveness of flat-elongated aggregates,the orthogonal test with three factors(aperture diameter,dip angle and thickness of material bed)was designed,and the Pearson correlation analysis was also carried out on the test results.The results show that there is a firm correlation between the aperture diameter,dip angle,the thickness of the material bed and the passage through the screen and the screening efficiency of the flat-elongated particles.The influencing order of factors was found to be the aperture diameter,dip angle and the thickness of the material bed.The dip angle of the mesh should be limited.When it is less than 10.81°,the increase of the dip angle of the mesh can improve the oriented screening efficiency of the flat-elongated particles.

关 键 词：机制碎石 针片状颗粒 正交试验 透筛效果 Pearson相关性分析 筛网倾角 料层厚度 筛网孔径 

分 类 号：TU528[建筑科学—建筑技术科学]