老鹰山气煤表面润湿性的研究

Study of surface wetting Laoyingshan Coal

根据矿物表面润湿性对矿物的影响,采用J(2000D)型接触角测量,量高法分析。结果发现,相同的煤样煤粒越大其接触角成增加趋势,可浮性也就越好。可从粒度分别为d>0.5mm,0.15mm<d<0.5mm,d<0.15mm三组数据中可以看出,同一种煤,用煤油进行改性可增加的可浮性。

According to the effect of surface wettability on minerals, using J(2000D) type contact angle measurement, analysis of high volume method. The results showed that coal particle is the same the contact angle increased, the floatability is better. Can be seen from the particle size of d>0.5mm, 0.15mm<d<0.5mm, d<0.15 mm three groups of data can be seen, the same kind of coal, with kerosene to be modified to increase the float.