射流-搅拌耦合式煤泥浮选装置设计与试验研究  

Design and experimental study of the jet-agitation combined fine coal flotation device

作　　者：朱金波[1] 韩有理 费之奎[1] 王超[1] 周伟[1] 朱宏政[1] 朱再胜 王海楠 张勇[1] 冯岸岸 ZHU Jinbo;HAN Youli;FEI Zhikui;WANG Chao;ZHOU Wei;ZHU Hongzheng;ZHU Zaisheng;WANG Hainan;ZHANG Yong;FENG An′an(School of materials Science&Engineering,Anhui University of Science&Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学材料科学与工程学院,安徽淮南232001

出　　处：《选煤技术》2018年第5期1-3,9,共4页Coal Preparation Technology

基　　金：国家自然科学基金资助项目(51374015);安徽省自然科学基金项目(1708085QE128);安徽省高等学校自然科学研究项目(KJ2017A071);安徽理工大学研究生创新基金项目(2017CX2040)

摘　　要：为了解决微细煤泥难处理的问题,结合机械搅拌式浮选机与喷射式浮选机的特点,提出一种兼具两种浮选机多重优点的射流-搅拌耦合式浮选装置。试验结果表明:该装置能够剥离矿物表面的黏土矿物,对煤泥表面改性提供界面条件,同时对<0. 250 mm细粒煤泥有良好的分选能力,各粒级精煤回收率均达到70%～80%,实现了设备节能降耗,提质增效的目的。In view of the difficulties in separation of fine coal and the respective features of the mechanical agitation and jet flotation cells,the jet-agitation type flotation device that incorporates a multiple of the advantages of both versions is developed.Test result shows that:the clay minerals attached onto surface of coal particles can be effectively removed,providing,as a result,a favorable condition for coal surface modification;the machine is highly effective for separation of<0.25 mm size coal;and the recovery of concentrate of each size fraction is as high 70%~80%.It well demonstrates that the use of the cell can lead to saving of energy,improvement of separation efficiency and upgrading of product.

关 键 词：煤泥浮选 浮选装置 射流 搅拌 精煤回收率 

分 类 号：TD943[矿业工程—选矿] TD456