Media Mine Explosion Mitigation

How do automatic methange gas and coal dust explosion suppression systems work?
Simulated methane gas explosion being suppressed by an Explospot Active Explosion Barrier. These automatic explosion suppression systems are commonly used on Komatsu (formerly Joy Global), Sandvik (formerly Voest), CAT, Eickhoff, SANY and many more mechanized mining machines.
Methane gas roof layer explosion being suppressed by an Explospot explosion suppression system.