表面活性剂水溶液抑制煤体瓦斯解吸作用的研究进展  

Research progress of surfactantaqueous solution inhibiting the desorption of gas in coal

作　　者：张雪洁 陈明义 张同浩 宋志雷 张磊 田富超 Zhang Xuejie;Chen Mingyi;Zhang Tonghao;Song Zhilei;Zhang Lei;Tian Fuchao(Hebei Province Technical Innovation Center of Safe and Effective Mining of Metal Mines,Shijiazhuang Tiedao University,Shijiazhuang Hebei 050043,China;Collaborative Innovation Center for Performance and Security of Large-scale Infrastructure,Shijiazhuang Tiedao University,Shijiazhuang Hebei 050043,China;State Key Laboratory of Coal Mine Safety Technology,Shenfu Demonstration Zone Liaoning 113122,China)

机构地区：[1]石家庄铁道大学河北省金属矿山安全高效开采技术创新中心,河北石家庄050043 [2]石家庄铁道大学大型基础设施性能与安全省部共建协同创新中心,河北石家庄050043 [3]煤矿安全技术国家重点实验室,辽宁沈抚新区113122

出　　处：《矿业科学学报》2022年第6期738-751,共14页Journal of Mining Science and Technology

基　　金：国家自然科学基金(51804201,52174230);河北省自然科学基金(E2020210081,E2021210128);煤矿安全技术国家重点实验室开放基金(2021-KF-23-04);石家庄铁道大学研究生创新项目(YC2022006)。

摘　　要：随着煤矿开采逐步向深部延伸,煤层瓦斯压力与含量趋于增大,瓦斯浓度超限问题日趋严重,而添加表面活性剂水溶液是降低煤体瓦斯涌出的重要技术手段。本文采用文献调查法分析了表面活性剂水溶液在煤矿瓦斯灾害防治中的应用情况,研究结果表明:(1)基于安全性、温和性考虑,表面活性剂优选顺序依次为两性和生物型、非离子、阴离子、阳离子,同时大部分非离子和两性表面活性剂具有良好的复配功能;(2)在试验浓度范围内,除生物型表面活性剂外,其他类型表面活性剂水溶液均出现明显的表面张力及接触角变化的浓度拐点,对应的临界胶束浓度为0.1%,获得表面活性剂水溶液润湿性效果排序为阴离子、非离子、两性、阳离子、生物型;(3)添加表面活性剂水溶液能够显著抑制煤岩瓦斯解吸扩散能力,这与水溶液的润湿铺展增强作用及封堵作用有关。With the increase of burial depth of coal seam,the gas pressure and gas content of coal seam tend to rise,resulting in the serious problem of gas concentration exceeding the limit.Generally,adding surfactant aqueous solution is an important technical means to reduce coal seam gas emission.In this paper,the application of surfactant aqueous solution in the prevention and control of coal mine gas disaster is analyzed by the literature survey method.The results are as follow:(1)based on the consideration of safety and gentleness effects,the descending order of the optimization of surfactants is amphoteric and biological,non-ionic,anionic and cationic,and most non-ionic and amphoteric surfactants have good compound performance.(2)In the test concentration range,except for biological surfactants,an inflection point for the variations of surface tension and contact angle with solution concentration can be observed for other types of surfactant aqueous solutions,and the corresponding critical micelle concentration(CMC)is 0.1%.Moreover,the descending order of the wettability effects of these surfactants is anionic,non-ionic,amphoteric,cationic and biological.(3)The addition of surfactant aqueous solution can significantly inhibit the desorption-diffusion capacity of gas in coal,which is closely related to the wetting spreading effect and blocking effect of aqueous solution.

关 键 词：煤与瓦斯突出 瓦斯解吸 水锁效应 表面活性剂 润湿性 

分 类 号：TD712[矿业工程—矿井通风与安全]