{"title":"Study on the Law of Gas Transport and Influencing Factors of Coal and Gas Outburst","authors":"Z. Li, Z. Wang, C. Miao, JunLing Ding, J. Wu","doi":"10.3103/S0361521923070042","DOIUrl":null,"url":null,"abstract":"<p>To study the effect of wind velocity and discharge on gas transport after coal and gas outburst. An experimental device for gas migration during the outburst period was designed and built. The experimental results show that the gas migration in the pipeline during the outburst period is affected by the wind speed, and the oxygen concentration on the return air side decreases faster than that on the inlet air side, indicating that the gas migration to the return air side is faster after the outburst. The larger the outburst flow, the larger the migration range of the outburst gas in the shaft and the greater the degree of airflow reversal on the inlet side, and the influence on the inlet pressure decreases first and then increases. For the ventilation recovery stage, the oxygen concentration in the inlet air rises 1.5 times faster than that in the return air on average. At the same time, TF1M3D simulation software is used to analyze the gas outburst plan of the preset mine, and study the law of gas migration and spatial-temporal distribution in the mine after the outburst.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"57 1 supplement","pages":"S53 - S61"},"PeriodicalIF":0.8000,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solid Fuel Chemistry","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.3103/S0361521923070042","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
To study the effect of wind velocity and discharge on gas transport after coal and gas outburst. An experimental device for gas migration during the outburst period was designed and built. The experimental results show that the gas migration in the pipeline during the outburst period is affected by the wind speed, and the oxygen concentration on the return air side decreases faster than that on the inlet air side, indicating that the gas migration to the return air side is faster after the outburst. The larger the outburst flow, the larger the migration range of the outburst gas in the shaft and the greater the degree of airflow reversal on the inlet side, and the influence on the inlet pressure decreases first and then increases. For the ventilation recovery stage, the oxygen concentration in the inlet air rises 1.5 times faster than that in the return air on average. At the same time, TF1M3D simulation software is used to analyze the gas outburst plan of the preset mine, and study the law of gas migration and spatial-temporal distribution in the mine after the outburst.
期刊介绍：
The journal publishes theoretical and applied articles on the chemistry and physics of solid fuels and carbonaceous materials. It addresses the composition, structure, and properties of solid fuels. The aim of the published articles is to demonstrate how novel discoveries, developments, and theories may be used in improved analysis and design of new types of fuels, chemicals, and by-products. The journal is particularly concerned with technological aspects of various chemical conversion processes and includes papers related to geochemistry, petrology and systematization of fossil fuels, their beneficiation and preparation for processing, the processes themselves, and the ultimate recovery of the liquid or gaseous end products.
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