Study on Prevention and Control Technology for Coal Spontaneous Combustion in Fully Mechanized Top-coal Caving Face in “Three-soft” Coal Seam
WANG Jianguo
TIAN Shuicheng
DONG Zhengkun
Abstract：In this paper, analysis was made on the characteristics of coal spontaneous combustion in fully mechanized top-coal caving face in“three-soft” coal seam, and the preventive measures against coal spontaneous combustion were proposed and applied for the prevention and control of the spontaneous fire zone in N101 fully mechanized top-coal caving face of Baoji Qinyuan Mine. The application results showed that during the enclosure of the spontaneous fire zone, the CO concentration in the gob behind No. 38 support ( the point where the highest CO concentration and temperature appeared in the whole fore zone) gradually reduced from 5. 8í10-4 to 5. 0í10-6 after taking the fire preventive and extinguishing measures, this indicated the good effect of the fire-fighting measures. Using this fire-fighting technology, the spontaneous fire in N101 fully mechanized top-coal caving face was successfully put out, and the fully mechanized equipment such as hydraulic powered supports which were enclosed in the face for several months was finally withdrawn.
Keywords：three-soft coal seamspontaneous combustionprevention and control technology
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 61-63,66 )