摘要
提出了连续排料分选锥设计概念,从径向和轴向分析了两组分颗粒的受力情况,推断了在逆向流场与离心流场耦合作用下颗粒的分离机理及对重颗粒的连续排料特性。建立了仿真试验模型,以二氧化硅颗粒和铜粉为分选对象,逆向流压力10000 Pa,径、轴向比为1∶2.7的条件下,验证了当内锥转速为700 r/min时分选锥的富集回收效果良好。研究表明连续排料分选锥对连续型选矿设备的研发具有重要意义。
The design concept of continuous discharge separation cone was proposed.The stress of two-component particles was analyzed from radial and axial directions.The separation mechanism of particles and the continuous discharge characteristics of heavy particles under the coupling action of reverse flow field and centrifugal flow field were deduced.A simulation test model was established.Taking silica particles and copper powder as the separation object,under the conditions of reverse flow pressure of 10000 Pa and diameter axial ratio of 1∶2.7,it was verified that the enrichment and recovery effect of the cone was good when the rotating speed of the inner cone was 700 r/min.The research shows that the continuous discharge separation cone was of great significance to the research and development of continuous beneficiation equipment.
作者
李汶倢
陈湘
李锡柱
LI Wenjie;CHEN Xiang;LI Xizhu(College of Physics and Electronic Information Engineering,Neijiang Normal University,Neijiang 641100,Sichuan,China)
出处
《有色金属（选矿部分）》
CAS
北大核心
2022年第2期137-142,共6页
Nonferrous Metals（Mineral Processing Section）
关键词
连续选矿
流态化
两组分颗粒
复合力场
continuous beneficiation
fluidization
two-component particles
composite force field
