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分析了立胜煤矿“1.5”特别重大电气火灾事故的发生时间、事故类型、发生地点及事故原因,认为该次事故为火灾事故,发生在2010-01-05T12:05中间井三道暗立井内,并得出导致该次事故的直接原因:中间井三道暗立井内有一根老化、破损的非阻燃电缆短路着火;矿井主要通风机在事故发生前没有运行,没有独立通风系统,通风设施不全,违规串联通风,中间井缺乏供水系统;矿井在-240 m水平以下区域无逃生通道;井下作业人员没有佩带自救器。最后提出了预防该类事故发生的措施:(1)严禁使用非阻燃电缆和老化、破损电缆;(2)严禁使用明令禁止的电器开关和设备,矿井供电系统必须按规定和标准设置漏电、过流和接地保护装置,并整定和校验;(3)除掘进工作面和临时作业场所外,井下其它巷道和作业地点均应有不少于2条通达地面的步行安全通道,每一个水平到上一个水平和各个采区都必须至少有2个可与通达地面的安全出口相连的行人安全出口;(4)矿井提升设备必须具有煤安标志;(5)矿井主要通风机不得停止运行,矿井必须具有独立的通风系统,必须按《煤矿安全规程》要求设置通风设施;(6)井下必须安装供水系统;(7)井下作业人员必须佩带压缩氧自救器。
The occurrence time, accident type, place of occurrence and cause of accident of “1.5” special serious electric fire accident in Li Sheng Coal Mine were analyzed. It was considered that the accident was a fire accident and occurred in the middle of 2010-01-05T12: 05. In the vertical shaft, the direct cause of the accident was obtained: there was an aging and damaged non-flame retardant cable in the middle shaft of the three middle shafts. There was a short circuit of the fire; the main ventilator of the mine did not operate before the accident and there was no independent ventilation system, Ventilation is not complete, illegal ventilation in series, the middle well lack of water supply system; mine in the area below the level of -240 m no escape channel; underground operators did not wear self-rescuer. Finally, the measures to prevent such accidents are put forward: (1) It is forbidden to use non-flame retardant cables and aged or damaged cables; (2) It is forbidden to use the electrical switches and equipment that are prohibited by law; the mine power supply system must set the leakage according to the regulations and standards, Overcurrent and earthing protection devices, and setting and verification; (3) Except for heading face and temporary work place, there should be not less than 2 pedestrian safety access roads on the ground for other roadways and work sites. Each level To the previous level and each mining area, there must be at least 2 pedestrian safety exits that can be connected with the safety exit of the ground; (4) The mine hoisting equipment must have the coal safety sign; (5) The main ventilator of the mine shall not be stopped, Mine must have an independent ventilation system must be set according to “Coal Mine Safety Regulations” requirements of ventilation; (6) Downhole water supply system must be installed; (7) Downhole workers must wear compressed oxygen self-help device.