破坏类型对构造煤吸附解吸特性影响实验研究  

Experimental Study on Influence of Damage Type on Adsorption and Desorption Characteristics of Structural Coal

作　　者：王俏 刘佳 罗琼 王俊杰 彭俊杰 Wang Qiao;Liu Jia;Luo Qiong;Wang Junjie;Peng Junjie(School of Resources,Environment and Safety Engineering,Hunan University of Science and Technology,Xiangtan,Hunan 411201)

机构地区：[1]湖南科技大学资源环境与安全工程学院,湖南湘潭411201

出　　处：《江西煤炭科技》2024年第4期144-148,159,共6页Jiangxi Coal Science & Technology

摘　　要：煤与瓦斯突出严重威胁煤矿井下的安全,研究煤瓦斯吸附特性和解吸特性对防治煤与瓦斯突出灾害有重大意义。为探究不同破坏类型煤吸附解吸规律和煤孔隙结构的内在联系,分别进行煤的瓦斯吸附、解吸和孔径结构特征测试实验。结果表明:煤的破坏程度越大,煤的瓦斯吸附量和解吸量越大。不同破坏程度煤的瓦斯吸附量和解吸量不同的原因是煤的破坏程度越大其内部微孔、小孔、中孔等不同孔径的孔体积、孔比表面积越大,开放透气气孔越多,吸附回线现象越明显。Coal and gas outburst is a serious threat to the safety of underground coal mine production.The paper makes an experiment on the gas adsorption and desorption characteristics of coal gas respectively to prevent and control the disaster of coal and gas outburst through the exploration of the relationship between the adsorption and desorption law of coal with different failure types and the pore structure of coal,whose results show that the greater the damage degree of coal is,the greater the gas adsorption and desorption capacity of coal is;the reason for the different gas adsorption capacity and gas desorption capacity of coal with different damage degrees is that the larger the damage degree of coal,the larger the pore volume and specific surface area of different pore sizes such as micropores,small pores and medium pores;the more open air pores,and the more obvious the adsorption loop phenomenon.

关 键 词：破坏类型 瓦斯吸附 瓦斯解吸 孔隙结构 

分 类 号：TD712[矿业工程—矿井通风与安全]