选煤厂分选高灰难选细粒煤泥的可行性研究

High Ash Separation Fine Grained with Hard Selection in Coal Preparation Feasibility Research

基于邢台矿煤质变差、工艺相对不完善、分级设备磨损等因素,以及用户对精煤产品的要求提高,浮选过程回收率与精煤质量之间的矛盾更加突出。通过实验室小浮选机、单段小浮选柱及小浮选柱串联对邢台矿入浮煤泥进行浮选实验对比,证明了串联浮选可有效改善粗颗粒煤泥的分选效果。利用洗煤厂现有浮选设备构建了浮选机与浮选柱串联系统,进行一次浮选精煤精选的二次浮选的半工业性实验,并对其可行性进行了探讨研究。

With the Xingtai Mine coal quality getting poor, the imperfect process of wear factors, classifying equipment abrasion, etc., combined with the user requirement for plant products, flotation process and recovery of the contradiction between the plant quality became more prominent. Through laboratory flotation machine, small single period of flotation column and flotation column in series of Xingtai Mine into the float coal slime flotation experiment comparison, proved that the series flotation can effectively improve the coarse coal slime separation effect. Using coal washery flotation equipment flotation machine was constructed with the existing flotation column in series system, a flotation plant selection of secondary flotation industrial experiment was conducted, whose feasibility was studied.