Research on the principle and experiment of recovering enrichment gas from return air in mine
Abstract：According to the relevant technical issues of low benefit from using low density CH4 oxidation to generate electricity（only use 3%~4% of CH4）,based on the investigation and analysis,this paper summarized the situation of China CH4 in return air was generally in low concentration（0.05%~0.50%）.Based on the inherent physical property and floatability of CH4 molecular,it analyzed and summarized general conditins for the buoyancy and gathered motion of CH4 molecular.With the experimental results and conclusions,the paper put forward the technology ideas and recovery equipment of separating gas was constructed from main return air,based on the detailed analysis of the space-time relationship between energy transformation and conservation law in the mine ventilator diffusion system.
Keywords：mine return airenrichment and recoveryextreme low concentration gasbuoyancy and gathered motion
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)