Effect of Plugging Air Leakage on Formation Laws of Coal Spontaneous Combustion Gaseous Products
JIN Yongfei
LIU Yin
GUO Jun
YUE Ningfang
ZHENG Xuezhao
Abstract：In order to study coal seam fire evolution and the influence of the decrease of air amount on coal spontaneous combustion gaseous products,the experimental device for testing coal spontaneous combustion characteristic parameters is carried out to do temperature-programmed experiment under the condition of reducing air volume,and coal spontaneous combustion process and laws on taking measures about plugging the air leakage channel and reducing air leakage at coal mine site after critical temperature are simulated.The results show that the amount of air leakage has little influence on the range of dryness temperature;the volume fraction of each gas product has similar characteristics with the variation of wind volume,that is,the decrease of air volume accelerates the production of gaseous products at the range of 80 ℃ to 140 ℃,and restrains acceleration after 140 ℃.
Keywords：coal spontaneous combustionplugging air leakagelow temperature oxidationgaseous producttemperature programmingfire control
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 15-18,22 )