自重介旋流器在选煤中应用途径分析

根据生产技术检查数据，确认常规分级旋流器存在的分选作用是导致分级旋流器回收粗煤泥灰分偏高的主要原因，对粗煤泥筛上物，浮选尾煤，－3mm矸石等进行了自重介旋流器分选试验，证明自重介旋流器分选细泥含量较少的粗煤泥能直接得到合格的精煤产品，能从矸石中回收中煤，分选细泥含量较多的浮选尾煤也取得了较好的分选效果，显示出自重介旋流器作为与浮选配套粗选或扫选作业的可能性。

Application Path Analyse of Autogenous Medium Cyclone in Coal Separation

Based on the data of technical control, it can be affirmed that the separation action is the prime reason that lead to the higher ash of coarse coal in recovery with hydrocyclone. In this paper separation tests were carried out with autogenous medium cyclone on materials such as screen overflow of coarse coal, flotation tailing and -3mm refuse. The results indicate that: it is able to recover qualified product from coarse coal consist of few fine slime directly, middling from refuse and flotation tailing consist of more fine slime with autogenous medium cyclone. All the results indicated it is possible to use autogenous medium cyclone as corollary equipment with flotation in rough concentration or scavenger.