逆流分选柱的应用现状及理论分析  

Application Status and Theoretical Analysis of Reflux Classifier

作　　者：赵炎 刘振强 胡志成 王毓华[1] 卢东方[1] 谢顺平 ZHAO Yan;LIU Zhenqiang;HU Zhicheng;WANG Yuhua;LU Dongfang;XIE Shunping(School of Resource Processing and Bioengineering,Central South University,Changsha 410083,China)

机构地区：[1]中南大学资源加工与生物工程学院,长沙410083

出　　处：《有色金属工程》2023年第2期90-99,共10页Nonferrous Metals Engineering

基　　金：国家重点研发计划项目(2021YFC2903202);国家自然科学基金资助项目(52174270,52174267,51974366,51674290);钒钛资源综合利用国家重点实验室资助项目(2021P4FZG05A)。

摘　　要：逆流分选柱是近20年来国内外普遍用于煤炭分选的液固流化床设备,主要由流化床和斜板区域两部分组成。逆流分选柱适用范围广,能有效分离具有一定密度差异的两种矿物,能应用于细粒物料的分选。因此,逆流分选柱不仅局限于煤炭的分选,对于铁矿或有色金属矿也有一定的分选效果。在绿色矿山政策的倡导下,重选这类污染小、成本低的选别方法更加不可或缺,而在矿石性质愈发复杂的情况下,传统重选设备越来越难以高效便捷地处理物料。对此,本文就几类主要的逆流分选柱进行详细阐述,并解释其对应的分选理论,为此类新型重选设备的应用提供参考。Reflux classifier is a liquid-solid fluidized bed equipment widely used in coal separation at home and abroad in recent 20 years.It is mainly composed of fluidized bed and inclined plate area.Reflux classifier has a wide range of application,can effectively separate two kinds of minerals with a certain density difference,and can be used in the separation of fine grained materials.Therefore,it is not only limited to coal separation,but also has certain sorting effect on iron ore or non-ferrous metal ore.Under the advocacy of today′s green mine policy,sorting methods with low pollution and low cost such as gravity separation are more indispensable.In the case of increasingly complex ore properties,traditional gravity separation equipment is becoming more and more difficult to be efficient and convenient processing ore.In this regard,several main types of reflux classifier are expounded,and their separation theory is explained to provide reference for the application of this new type of gravity separation equipment.

关 键 词：重选 逆流分选柱 液固流化床 斜板沉降 

分 类 号：TD455[矿业工程—矿山机电]