煤泥二次浮选、精煤泥两段回收流程在梗阳选煤厂的应用

Application at Gengyang Coal Preparation Plant with the flowsheet consisting slime flotation & two stages of concentrate slime recovery

根据生产系统检测的数据,分析并评述了梗阳选煤厂煤泥二次浮选、精煤泥两段回收流程中粒度控制、煤泥粗选、粗精煤泥脱水回收、煤泥部分精选四个主要作业的效果;该流程整体工艺分选指标效果好,能有效回收煤炭资源,解决浮选精煤灰分普遍偏高的问题。

Based on inspection data of production system,analysis and evaluation of the performance of 4 main operations in Gengyang Coal Preparation Plant, i. e.,2nd slime flotation,particle size control in recovery of concentrate slime in two stages, rough separation of coarse slime,dewatering and recovery of coarse concentrate, partial separation of coal slime; such flowsheet gives good separation performance as a whole,coal resource efficiently recovered,the problem of concentrate ash tending higher thus solved.