The statistic method to plot three zones of spontaneous combustion in gob

摘要

This Paper brings forwards a new method of partition spontaneous combustion Three Zones in gob.It is by the means of statistic data of CO and its disciplinarian of change in return laneway that the method get the distribute of the spontaneous combustion Three Zones.The method defines the distance from working face to cut hole as the maximal extent of no self-ignite zone when no CO can be detected,and it defines the distance from working face to cut hole as the maximal extent of self-ignite zone when CO was detected to be descend.The method is being success used to partition spontaneous combustion Three Zones in gob in the 8102 integrated mechanized top coal plop mining face in Tashan coal mine of Tongmei Group,and the result was used to get technical scheme of the prevention of spontaneous combustion in the gob of the 8102 working face.To contrast the new method and traditional method,the bundle tube air bleeds Three Zones method was used,and the result proved to be consistent.The method is useful that it can partition spontaneous combustion Three Zones as early as possible and the result can be used to get the exact technical scheme of the prevention of spontaneous combustion.