Institutional Repository of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences
| An investigation of airflow distribution and dynamics at a longwall mine face through field survey and its implication on oxygen depletion | |
| Wang, Kai1,2; Sun, Chuanwen2,3; Ai, Zibo2; Li, Shouding3 | |
| 2022-09-03 | |
| Source Publication | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| ISSN | 0944-1344 |
| Pages | 15 |
| Abstract | The airflow exchange between the mine ventilation system and the surface atmosphere can influence ventilation effectiveness and emit more greenhouse gas from the mine for shallow cover mines. This airflow exchange also changes the airflow dynamics at the ventilation system, specially at the tailgate corner of the longwall. In this study, the fix-point traverse technique was employed to conduct a comprehensive survey at a coal mine longwall face and tailgate region. The air velocity, oxygen and carbon monoxide concentrations, barometric pressure, and temperature were measured and surveyed. Based on the survey data, the airflow pattern and gas concentration were analyzed at return air corner on the tailgate side. Based on the measurement and analyses, it was found that the airflow at the face can be broken into two compartments by the hydraulic cylinder. These two compartments can periodically exchange the air at the face. This can influence the abnormal gas concentration for the release of carbon monoxide from the gob attributed from coal spontaneous combustion. Also, our study provided detailed information for more understanding of airflow in working face and gob by simulation method in the future work. |
| Keyword | Ventilation parameters Abnormal gas concentration Spontaneous combustion Airflow exchange |
| DOI | 10.1007/s11356-022-22503-0 |
| Funding Organization | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China |
| WOS Keyword | GAS-DIFFUSION ; SPONTANEOUS COMBUSTION ; COAL ; EMISSION |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[52130409] ; National Natural Science Foundation of China[51874314] ; Innovative Research Group Project of the National Natural Science Foundation of China[52121003] |
| Funding Organization | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China ; Innovative Research Group Project of the National Natural Science Foundation of China |
| WOS Research Area | Environmental Sciences & Ecology |
| WOS Subject | Environmental Sciences |
| WOS ID | WOS:000849473100011 |
| Publisher | SPRINGER HEIDELBERG |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.iggcas.ac.cn/handle/132A11/108397 |
| Collection | 页岩气与地质工程院重点实验室 |
| Corresponding Author | Wang, Kai |
| Affiliation | 1.China Univ Min & Technol Beijing, Beijing Key Lab Precise Min Intergrown Energy & R, Beijing 100083, Peoples R China 2.China Univ Min & Technol Beijing, Sch Emergency Management & Safety Engn, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Kai,Sun, Chuanwen,Ai, Zibo,et al. An investigation of airflow distribution and dynamics at a longwall mine face through field survey and its implication on oxygen depletion[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2022:15. |
| APA | Wang, Kai,Sun, Chuanwen,Ai, Zibo,&Li, Shouding.(2022).An investigation of airflow distribution and dynamics at a longwall mine face through field survey and its implication on oxygen depletion.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,15. |
| MLA | Wang, Kai,et al."An investigation of airflow distribution and dynamics at a longwall mine face through field survey and its implication on oxygen depletion".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2022):15. |
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