重介悬浮液性质对煤泥分选效果的影响  

Effect of dense medium suspension properties on coal slime separation

作　　者：孟进 Meng Jin(Yangquan Shangshe Coal Corporation Ltd.,Yangquan 045100,China)

机构地区：[1]阳泉市上社煤炭有限责任公司,山西阳泉045100

出　　处：《煤炭与化工》2020年第2期117-120,共4页Coal and Chemical Industry

摘　　要：重介旋流器作为目前最常用的煤泥分选设备,在分选处理细粒煤时比水力分选设备及浮选更加高效。为了提高重介旋流器分选效果,改善细粒煤泥分选方法,本文主要研究作为分选介质的重介悬浮液的性质对煤泥分选效果的影响,通过煤泥含量、悬浮液密度的变化以及入料压力的改变,研究重介悬浮液稳定性的差异,以及对细粒煤分选效果的影响。研究结果表明,随着煤泥含量及悬浮液密度的增加,重介悬浮液浓缩度增加,澄清度减小,稳定性增强;随着入料压力的增加,悬浮液的浓缩度增大,稳定性减弱。As the most commonly used slime sorting equipment,heavy-medium cyclone is more efficient than hydraulic sorting equipment and flotation in the treatment of fine coal.In order to improve the separation effect of heavy-medium cyclone and the method of fine-grained slime separation,the influence of the properties of heavy-medium suspension as a separation medium on the effect of slime separation was studied.By changing density feed pressure,the differences in the stability of heavy media suspensions were explored,thereby affecting the fine coal sorting effect.The results showed that with the increase of coal slime content and suspension density,the concentration of heavy media suspension and stability increased,the clarity decreased.With the increase of feed pressure,the concentration of suspension increased and the stability decreased.

关 键 词：细粒煤分选 重介质悬浮液 煤泥粒度 悬浮液性质 

分 类 号：T94[一般工业技术]