D _(0.15mm)筛网孔径旋流分级柱的颗粒静态分级试验研究  

Experiment Study on the Particle Static Grading of Eddying Classification Column with Mesh Diameter of D_(0.15mm)

作　　者：胡海祥 杨旺 HU Haixiang;YANG Wang(Gannan University of Science and Technology,Ganzhou,Jiangxi 341000,China;Chongyi Zhangyuan Tungsten Co.,Ltd.,Ganzhou,Jiangxi 341000,China;Xinyu Iron and Steel Group Co.,Ltd.,Xinyu,Jiangxi 338001,China)

机构地区：[1]赣南科技学院,江西赣州市341000 [2]崇义章源钨业股份有限公司,江西赣州市341000 [3]新余钢铁集团有限公司,江西新余市338001

出　　处：《矿业研究与开发》2022年第2期45-49,共5页Mining Research and Development

基　　金：江西省自然科学基金面上项目(20202BAB204014);中国博士后科学基金资助项目(2020M671959);江西省博士后科研择优资助项目(2019KY51);江西省博士后日常经费资助项目(2020RC04);赣州市科技重点研发计划(社发领域)项目(赣市科发[2019]60号);赣州市科技计划项目创新领军人才计划项目(赣市科发[2020]60号)

摘　　要：通过将筛网分级与水力分级相结合,发明了具有较高分级精度与分级效率的旋流分级柱。通过用旋流分级柱进行颗粒静态分级试验,探究了旋流分级柱分级效率的影响因素及其耦合关系。试验表明,颗粒群在短时间内即可达到分级平衡,分级试验中5 s时间内,颗粒分级已基本完成,此后颗粒分级效率提升幅度很小;给矿浓度与分级效率成反比;叶片转速增大会提高矿物颗粒分级效率;叶片γ方位角增大会降低颗粒分级效率。Combining mesh classification with hydraulic classification»the eddying classification column with high classification accuracy and efficiency was developed.Through the particle static grading of eddying classification column,the influencing factors of classification efficiency of the eddying classification column were explored,as well as their coupling relationships.The test shows that the particle group can reach the classification balance in a short time.In the classification test,the particle classification has been basically completed within 5 seconds.After that,the particle classification efficiency has been improved very little.Besides,ore feed concentration is inversely proportional to classification efficiency,the increase of the blade speed will increase the particle classification efficiency,while the increase of the blade azimuth angle γ will reduce the particle classification efficiency.

关 键 词：旋流分级柱 分级效率 分级时间 给矿浓度 叶片方位角 

分 类 号：TD921^(+).5[矿业工程—选矿]