加重质液固流化床流化特性研究  

Research on Fluidization Characteristics of Dense Medium Liquid Solid Fluidized Bed

作　　者：贺长营 李延锋[1] 张文军[1] 赵明辉[1] 李东泽[1] 张迟强 

机构地区：[1]中国矿业大学化工学院,江苏徐州221116

出　　处：《煤炭技术》2015年第3期290-293,共4页Coal Technology

基　　金：国家自然科学基金(51174204);中央高校基本科研业务费专项资金(2014YC08);江苏省高校优势学科资助

摘　　要：为确定加重质液固流化床对粗煤泥的最佳分选条件,开展了针对加重质液固流化床流化特性的实验研究,分析了加重质液固流化床在不同流化水速下的床层密度分布,考察了不同粒级磁铁矿粉沿柱高方向的分布,研究了-0.25 mm煤泥含量对流化特性的影响。The laboratory experiments to study fluidization characteristics of dense medium liquid solid fluidized bed was carried out in order to determine the optimum separation conditions for coarse coal slime. The distribution of density under different fluidized water velocities and the different particle size of magnetite along column direction were analyzed. Meanwhile the influence of-0.25 mm coal slime content on hydrodynamics was investigated.

关 键 词：液固流化床 加重质 流化特性 粗煤泥 分选 

分 类 号：TD94[矿业工程—选矿]