直流电场作用对煤瓦斯吸附性影响试验研究  

Experimental Study on Influence of Direct Current Field on Coal Gas Adsorption

作　　者：王平虎 

机构地区：[1]晋能集团有限公司,山西太原030002

出　　处：《煤矿安全》2016年第11期4-7,共4页Safety in Coal Mines

基　　金：山西省科学技术发展计划(工业部分)资助项目(20130321026-03)

摘　　要：采用直流电场作为物理场,研制了一种直流电场作用煤瓦斯吸附性试验装置,在该装置上对煤瓦斯的吸附性进行了试验研究,并进一步分析了电场作用对煤瓦斯饱和吸附量和吸附常数等吸附性质的影响。试验结果表明:直流电场作用能够降低煤对瓦斯的吸附性,对煤吸附瓦斯的吸附等温线有影响,且电压作用对煤瓦斯吸附量的影响大于频率对其的影响;直流电场作用下煤对瓦斯吸附的饱和吸附量和吸附常数减小,随着电压或频率的增加,煤对瓦斯的饱和吸附量呈线性规律减小,吸附常数呈指数规律减小。The direct current field was used as the physical field. An experimental apparatus affecting the adsorption of coal gas with the current field weakening was developed ; the experimental study is about the adsorption of coal gas under the direct current field. The adsorption property of the saturated adsorption capacity and the adsorption constant were analyzed. The experimental results were as fol- lows ： the coal gas adsorption can be weakened by the voltage. The adsorption property of coal gas is still followed with Langmuir equa- tion under the direct current field. The adsorption capacity under the voltage treatment is larger than that under the frequency treat- ment. With the increasing of the voltage and frequency, the saturated adsorption capacity reduced with line law and the adsorption con- stant reduced with exponential law.

关 键 词：煤瓦斯 直流电场 等温吸附线 饱和吸附量 吸附常数 

分 类 号：TD721[矿业工程—矿井通风与安全]