表面活性剂复配对低阶煤煤尘润湿性的影响  

Study on effect of surfactant mixtures on wettability of low-rank coal dust

作　　者：赵璐[1] 张蕾[1] 文欣 贾阳 舒浩[1] 孙智宇 ZHAO Lu;ZHANG Lei;WEN Xin;JIA Yang;SHU Hao;SUN Zhiyu(College of Geology and Environment,Xi’an University of Science and Technology,Xi’an 710054,China;Electrical and Mechanical Management Centre of Shennan Industry Development Co.,Ltd.,Shenmu 719300,China)

机构地区：[1]西安科技大学地质与环境学院,陕西西安710054 [2]陕煤集团神南产业发展有限公司机电设备管理中心,陕西神木719300

出　　处：《矿业安全与环保》2021年第1期39-43,共5页Mining Safety & Environmental Protection

基　　金：国家自然科学基金项目(51704230);陕西省重点研发计划项目(2019ZDLSF05-05-01);陕西省自然科学基础研究计划项目(2019JL-01)。

摘　　要：为解决煤尘不易被水润湿的问题,选取表面活性剂加入水中制成复配溶液。通过测定自来水、5种不同类型表面活性剂单体溶液及5种复配溶液的表面张力、煤尘接触角及煤尘沉降时间,研究表面活性剂复配对煤尘润湿性的影响规律。结果表明:阴离子与非离子、阴离子与阴离子、非离子与非离子表面活性剂复配都可以起到协同增效作用,显著提高煤尘的润湿性。其中质量分数为0.06%的快速渗透剂T和质量分数为0.20%的烷基糖苷APG复配溶液润湿煤尘效果最佳,100 mg煤尘沉降时间为0.22 min。研究结果可为表面活性剂的选取提供参考。In order to solve the problem that coal dust is not easy to be wet by water,surfactant is added into water to make mixture solution.By testing the surface tension,contact angle and settling time of coal dust of raw water,5 different types of surfactant monomer solutions and 5 mixed solutions,the influence of surfactant on wettability of coal dust is studied.The results show that anionic and non-ionic,anionic and anionic,non-ionic and non-ionic surfactant mixtures can play a synergistic effect and significantly improve the wettability of coal dust.The mixture solution of rapid penetrant T(w=0.06%)and APG(w=0.20%)demonstrate the best wetting ability,the settling time of 100 mg coal dust in solution is 0.22 min.The results can provide reference for the selection of surfactant.

关 键 词：低阶煤 煤尘 表面活性剂复配 润湿 表面张力 接触角 沉降时间 

分 类 号：TD714.4[矿业工程—矿井通风与安全] TQ531[化学工程—煤化学工程]