不同流场条件下的煤样瓦斯解吸规律实验研究  

Experimental Study on Gas Desorption Law of Coal Samples in Different Fluid Fields

作　　者：齐黎明[1,2] 赵嵘[3] 梁为 吕志强[5] 

机构地区：[1]河北省矿井灾害防治重点实验室,河北廊坊065201 [2]华北科技学院安全工程学院,河北三河101601 [3]华北科技学院研究生院,河北三河101601 [4]华北科技学院机电工程学院,河北三河101601 [5]开滦(集团)有限责任公司,河北唐山063018

出　　处：《矿业安全与环保》2016年第2期5-7,12,共4页Mining Safety & Environmental Protection

基　　金：国家自然科学基金资助项目(51204070);河北省高层次人才资助项目(博士后科研项目择优资助,B2013003021);河北省矿井灾害防治重点实验室开放基金项目(KJZH2013K09);中央高校基本科研业务费资助项目(3142014012);河北省自然科学基金项目(E2015508053)

摘　　要：以实验室实验为研究手段,研究了单向、径向和球向3种不同流场条件下的瓦斯解吸规律。首先对实验进行了设计,包括实验原理、不同流场设计,并对现有吸附罐进行设计改造,实现了单向、径向及球向3种瓦斯流场状态;然后对实验装置进行加工与制作,开展了不同流场条件下的煤样瓦斯解吸实验,绘制出相应的瓦斯解吸量曲线。研究结果表明:在相同的瓦斯解吸时间内,3种流场的瓦斯解吸量与平均瓦斯解吸速度不同,且都呈现出球向流场最大,径向流场次之,单向流场最小的规律,对煤矿瓦斯防治工作具有指导意义。In this paper,study was carried out on the gas desorption law under the conditions of unidirectional flow field,radial flow field and spherical flow field through laboratory experiments. Firstly,the experimental program was designed,including the experimental principle and different flow fields,and through the redesign and modification of the existing gas adsorption vessel,the unidirectional flow field,radial flow field and spherical flow field of gas were thus achieved; then the experimental apparatuses were processed and manufactured; finally,the gas desorption experiments were done under the conditions of different flow fields and corresponding gas desorption curves were drawn out. The results showed that in the same gas desorption time,the gas desorption quantities and average gas desorption velocities of three kinds of flow fields were all different,and they were the largest in spherical flow field,the larger in radial flow field and the smallest in unidirectional flow field,so they have a guiding significance for gas prevention and control in coal mines.

关 键 词：瓦斯解吸 单向流场 径向流场 球向流场 

分 类 号：TD712.5[矿业工程—矿井通风与安全]