新型粗煤泥干扰床分选技术的研究  

Research on new teeter bed separation technology of coarse slime

作　　者：焦红光[1] 惠兵[1] 冯金涛[1] 潘兰英[1] 

机构地区：[1]河南理工大学材料科学与工程学院,河南焦作454003

出　　处：《煤炭工程》2009年第2期85-87,共3页Coal Engineering

基　　金：河南省教育厅自然科学基金(2007440006)

摘　　要：粗煤泥干扰床由于可控参数少、要求入料粒度范围窄等缺点极大地限制了传统干扰床分选技术的应用，论文提出采用脉动水流以强化密度对干扰沉降的主导作用，同时在分选机内部添加阻尼块以改善上升水流流态。采用隔膜配合变频器构建了实验室分选系统，并采用九里山矿选煤厂较宽粒级的粗煤泥（3～0．25mm）同传统的干扰床分选机进行了对比试验。试验结果表明：增加阻尼块和脉动水流的新型干扰床分选机的分选效果优于传统的干扰床分选机。Due to the less controllable parameters, the required feeding particle size and other disadvantage of the coarse slime teeter bed restrained the application of the conventional teeter bed separation technology, the paper provided the pulsating flow to enhance the main function of the density to hindered settlement. And the damping blocks added in the separator could improve upward flow situation. A lab separation system was established with the membrane and frequency converter. A comparison test was conducted with the coarse slime （3 - 0. 25mm） from Jiulishan Coal Preparation Plant and the conventional teeter separator. The test results showed that the separation results of the new teeter bed separator with damping blocks and the pulsating flow could be better than the conventional teeter bed separator.

关 键 词：粗煤泥 干扰床分选机 阻尼效应 脉动水流 分选 

分 类 号：TD94[矿业工程—选矿]