Four secondary explosions in Shaanxi coal mine
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China news agency copper Sichuan (2004) December 3 power (Lie Wei) Chenjiashan mine accidents expert team leader, Chinese Academy of Engineering Zhang Gang said here today that iron, Chenjiashan coal mine explosion by the four secondary fire Caused, the current preferred rescue plan is irrigation.
After three consecutive explosions in five hours in the early morning of the second day, at 10:53 am yesterday, the fourth new explosion occurred in the Chenjiashan Coal Mine. Fortunately, the four explosions did not cause new casualties.
It is understood that the Chenjiashan mine disaster occurred on November 28, 166 people were trapped underground, the temperature of the underground working face of the four to five is as high as one or two thousand degrees, the atmospheric pressure is seven to ten, the gas content It is nine percent. According to expert analysis, in such a bad situation, the underground distressed personnel have no chance of survival. Up to now, a total of 65 bodies of victims have been found. Thirty-five dead miners have been transported out of the mine, and 34 of them have been confirmed.
Zhang Tiegang said that in the previous paragraph, the rescue measures taken by the relevant parties were correct.
The nature of these four secondary explosions is an explosion caused by fire. Due to the open flame, the more explosive, the higher the concentration of gas replenishment; the higher the gas concentration, the more likely it is to cause an explosion, thus forming a cycle. At present, the preferred method is to flood large areas, so that on the one hand, it can be safely extinguished, on the other hand, it is also conducive to the protection of the bodies of the miners. Wait until the water reaches a certain level, and the open flame will be extinguished before the next rescue operation can be carried out.
He said that at present, in order to avoid new casualties, the rescue team can not go down to the rescue. This flooding process can last for ten days or more. (China News Network)