煤泥在倾斜板窄通道中的分选研究和实践  

Study and Practice on Slime Separation in Inclined-plate Narrow Tunnel

作　　者：张红霞 Zhang Hongxia(Huipodi Colliery,Fenhe Coking Coal Co.,Ltd.,Huozhou Coal&Electricity Group,Hongdong,Shanxi 041600)

机构地区：[1]霍州煤电集团汾河焦煤有限公司回坡底煤矿,山西洪洞041600

出　　处：《江西煤炭科技》2022年第4期215-217,共3页Jiangxi Coal Science & Technology

摘　　要：针对回坡底煤矿倾斜板窄通道煤泥分选效果差的现象,对倾斜通道中颗粒的运动机理进行了研究,并用根据此理论对煤泥在倾斜板窄通道内进行分选,通过观察不同水流速度下分选效果的差异,发现随着水流的增大,粒径较大的煤泥随水分配的概率增大,在相对较低的水流速度下,得到的灰分较高、粒径较小的煤泥含量较大,最终确定了水的流速为0.048 m/s下脱泥效果最佳,经济效益显著。Aiming at the poor slime separation effect in the inclined-plate narrow tunnel of Huipodi Colliery,the author makes a study on the slime separation based on the movement mechanism of particles in the inclined tunnel,which shows that the probability of the coal slime with a larger particle size being distributed with the water increases with the increase of water flow with high ash and large amount of slime with smaller particle diameter through observing the difference of the separation effect under different water flow speeds,determining the best desliming effect at the water flow rate of 0.048 m/s.

关 键 词：煤泥分选 倾斜板窄通道 水流速度 分选效果 灰分 

分 类 号：TD94[矿业工程—选矿]