煤矿安全2024，Vol.55Issue(3)：60-65,6.DOI:10.13347/j.cnki.mkaq.20230392
阴阳离子表面活性剂对煤层自转向酸液的性能影响及优选
Effect and optimization of anionic and cationic surfactants on the performance of self-diverting acids in coal
摘要
Abstract
Aiming at the serious problem of dust pollution in coal mines,the OAPB automatic diverting acid solution of coal seams was studied to uniformly distribute acid,so as to improve the water content of coal bodies.In order to achieve better results in coal mines,this paper studied the effects of different anionic and cationic surfactants on the viscosity and wettability of self-diverting acid using methods such as viscosity,chargeability,and functional groups,explored the internal causes of performance changes,and op-timized based on the test results.The results show that cationic surfactants can directly cause gel breaking of self-diverting acid,and the addition of anionic surfactants can increase the viscosity of self-diverting acid.SSA/SDBS has good wettability,with a minimum surface tension of 24.12 mN/m;SSA/SDBS-16 has an overall higher surface tension value,poor self-wetting performance,and weak-er adsorption performance on the coal bodies.Through infrared experiments,it was found that OAPB molecules tended to form hy-drogen bonds under the action of SSA/SDBS,and the percolation effect of self-diverting acid solution was verified through triaxial percolation experiments.关键词
粉尘防治/粉尘污染/自转向酸液/阴阳离子/表面活性剂/抑尘剂Key words
dust prevention and control/dust pollution/self-diverting acid/anion and cation/surfactant/dust suppressant分类
矿业与冶金引用本文复制引用
苗彦平,张金贵,郑旭鹤,王宏梁,折刚,谢瑶,程卫民..阴阳离子表面活性剂对煤层自转向酸液的性能影响及优选[J].煤矿安全,2024,55(3):60-65,6.基金项目
国家自然科学基金重点资助项目(51934004) （51934004）
陕煤集团神木红柳林矿业有限公司科技创新资助项目(HT[2017]430721) （HT[2017]430721）
