The Technic of Inject the Inhibitory Solution into Coal to Prevent the Autoignition of the Coal in Gob

The fact that the autoignition of the coal in mined-out space is basically due to the surface of the grinded-coal contacting with oxygen have a oxidation decomposition,releasiong heat,whicth leads to the tempreture of dump continuously increase and gradually reach the ignition point.Applied to reasonable coal-injection technology,it can make the inhibitory solution incorporate the aperture gap.Consequently,no matter how to grind the coal,it will be evenly bounded with inhibitory solution and prevent the contaction with oxygen,which prevents oxidation and prolong the duration of spontaneous combustion.