强黏结性易泥化焦煤粉尘润湿性研究  

Research on Coking Dust Wettability of Strong Cohesiveness and Easy Mudding

作　　者：闵耀涛 赵文彬[1] 朱光丽[1] 王明华[1] 徐蒙[1] 张守勇[1] 

机构地区：[1]山东科技大学矿业与安全工程学院,山东青岛266590

出　　处：《煤矿安全》2015年第1期9-12,共4页Safety in Coal Mines

基　　金：国家科技支撑计划资助项目(2013BAK06B07)

摘　　要：焦煤粉尘具有强黏结性、易泥化等特点。采用接触角法和正向渗透法测定焦煤的润湿性能并优选润湿剂。研究结果表明:不同煤层部位焦煤粉尘润湿性差异较大,中部煤层易于润湿;通过矿井水与蒸馏水的对比试验得出矿井水的润湿效果较好,10种润湿剂的对比试验得出非离子表面活性剂优于阴离子与两性表面活性剂,正向渗透法得出高温时润湿剂有较好的润湿效果,同时随浓度的增加在一定范围内润湿效果与之成正比;利用润湿角和润湿速度法,最终确定浓度为0.3%的JFC-6为最优润湿剂。Coking coal dust has strong adhesion,easy mud and other characteristics. The contact angle method and forward penetration method was used to test the wetting properties of coking coal and optimized the wetting agent. The results showed that the wettability difference of coking coal dust was large in different coal seam,the central seam was easy to wet. Through the comparative test of mine water and distilled water,it was obtained that the mine water was better in wetting effect. The comparative tests of ten wetting agents showed that the non- ionic surfactant was better than anionic surfactant and amphoteric surfactant. The forward penetration test turned out that the wetting agents had better wetting effect in high temperature,while the wetting effect proportionally increased with the increase of concentration in a certain range. Finally,by the wetting angle and the wetting rate method,it was determined that JFC- 6with 0. 3% concentration was the optimal wetting agent.

关 键 词：焦煤 粉尘 表面活性剂 润湿性 正向渗透法 

分 类 号：TD714[矿业工程—矿井通风与安全]