煤层注水对煤矿粉尘和瓦斯灾害的影响分析  

Analysis of Influence of Coal Seam Water Injection on Coal Mine Dust and Gas Disasters

作　　者：王金成 WANG Jincheng(Shenyang Research Institute Co.,Ltd.,China Coal Technology Group,Liaoning 113122,China;National Key Laboratory for Coal Mine Disaster Prevention and Control,Liaoning 113122,China)

机构地区：[1]中煤科工集团沈阳研究院有限公司,辽宁沈抚示范区113122 [2]煤矿灾害防控全国重点实验室,辽宁沈抚示范区113122

出　　处：《煤》2025年第2期54-57,共4页Coal

基　　金：国家重点研发计划项目(2023YFB3211000);国家自然科学基金资助项目(52174229);辽宁省自然科学基金资助项目(2022-KF-23-03,2023-MS-355,52124230)。

摘　　要：煤矿粉尘和瓦斯灾害随煤炭开采深度的增加表现突出,给广大职工生命安全带来巨大的危害。为了进一步降低此二类灾害给矿山生产造成的损失,推动矿山安全高效生产,本文从煤层注水机理研究、注水方式及工艺等方面对某矿2201工作面回风巷的粉尘和瓦斯灾害展开系统分析,得出煤层注水前煤的全水分平均值为1%,煤层注水后煤的全水分平均值为1.4%,在煤层注水后,煤的全水分明显增大,同时煤的吸水率降低,注水使煤层中水的含量增加,进而有效减少矿井开采过程中产生的粉尘。煤层注水后瓦斯解吸速率有一定幅度地降低,但对瓦斯抽采效果无较大影响。Coal mine dust and gas disasters with the increase of coal mining depth,the performance of the majority of workers to bring great harm to life safety.In order to further reduce the losses caused by these two kinds of disasters to mine production and promote safe and efficient mine production,based on the study of coal seam water injection mechanism,water injection method and technology,a systematic analysis of dust and gas disasters in the return air lane of the No.2201 working face in a coal mine is carried out,the average value of total moisture of coal is 1.4%after water injection.After water injection,the total moisture of coal increases obviously,and the water absorption rate of coal decreases,and then effectively reduce the dust produced in the mining process.The rate of gas desorption is decreased after water injection,but it has no great influence on the effect of gas extraction.

关 键 词：煤层注水 粉尘 瓦斯 灾害 煤矿安全 

分 类 号：TD752.2[矿业工程—矿井通风与安全] TD712