Research Article

Prevention and Control of Spontaneous Combustion of Residual Coals in Acid-Soaked Goaf in Gas Drainage Condition

Figure 16

O2 concentration field in the goaf floor under different air intake conditions. (a) Inlet air volume at 1400 m3/min. (b) Inlet air volume at 1800 m3/min.
(a)
(b)