入料特性对干扰床（TBS）分选的影响 .pdfVIP

学兔兔 煤 炭 工 程 2013年第3期 doi：10．1 1799／ce201303034 入料特性对干扰床(TBS)分选的影响 赵小楠，韦鲁滨，吕 薇 (中国矿业大学(北京)化学与环境工程学院，北京 100083) 摘 要：文章结合干扰沉降理论和斜面流理论，研究了入料特性对TBS分选性能及其挡板 设置的影响。结果表明：入料粒度和密度组成是影响挡板设置和TBS分选性能的主要因素；分 选密度随上升水速的增加先增加后减小；加设适当角度的挡板在一定程度上能抑制颗粒粒度效 应．实现按密度进行分选。 关键词：干扰床(TBS)；粗煤泥；干扰沉降理论；分选特性 中图分类号：TD455 文献标识码：A 文章编号：1671—0959(2013)03-0102-03 Feeding Features Affected to Separation of Teetered Bed Separator(TBS) ZHAO Xiao—nan，WEI Lu—bin，LU Wei (School of ChemicaI and Environmental Engineering，China University of Mining and Technology(Beijing)，Beijing 100083，China) Abstract：In combination with the disturbance settling theory and the inclined flow theory，the paper had a study on the feeding features~feeted to the TBS separation performances and the baffle setting．The results showed that the feeding particle and density composition would be the main factors affected to the baffle setting and the TBS separation performances．The density of the separation would be increased and than decreased with the upward water velocity increased．The baffle with a certain angle could restrain the partiele size effect in certain degree and the separation could be realized according to the density． Keywords：teetered bed separator(TBS)；coarse slime；disturbance settling theory；separation features 澳大利亚对设置挡板的TBS用于粗煤泥分选进行了一 1 概 述 系列的研究，并取得了较好的效果。TBS粗煤泥分选工艺 目前，粗煤泥处理工艺简单地分为两种：分级回收和 也备受国内选煤界关注，一些科