矿井火灾对井下人员的危害--qsf999的安全生产小屋

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矿井火灾对井下人员的危害 | 2011-8-2 9:25:00

矿井火灾对井下人员的危害

矿井火灾会给井下人员的生命安全带来特别严重的危害，主要原因是：

（1）井下空间狭小，矿井通风及巷道联通关系复杂，供风量有限，发生火灾时人员避灾会受到井下环境条件的限制。

（2）矿井火灾会产生大量的高温火烟，火源附近的温度常常在1000℃以上。火灾所产生的大量烟气和热量在井下不易散失。在巷道通风的情况下高温烟流能随风迅速传播到很远很大的范围，使这些区域的人员受到高温的伤害。

（3）火灾烟气中带有大量的有毒有害气体以及蒸汽和烟尘等，不但对人的眼睛及呼吸器官有强烈的刺激和窒息作用，而且烟气中的一氧化碳等气体具有很大的毒性，人吸入了它就会中毒以致死亡。

（4）矿井火灾发展到一定强度，当出现火风压，可能会造成矿井通风网路风流方向的变化，从而使烟气的流动失去控制，进一步扩大灾区范围，使更多的井下人员受到火灾烟气的毒害。同时给井下的安全撤退带来极大的困难和危险。

（5）煤矿井下到处都存在大量的易燃物，火灾极易发展蔓延，高温火烟在巷道流经的路程上，渗入新鲜风流时，将会在渗风地点形成新的火源。

（6）矿井火灾还会引起瓦斯、煤尘的爆炸。这类事故，无论是在高瓦斯矿井或低瓦斯矿井，历史上都曾经发生过。

By:qsf999 | 阅读全文 | 回复(16) | 引用通告 | 编辑

Re:在漫画中识别身边的违章 | 2017-2-20 16:53:05

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Re:在漫画中识别身边的违章 | 2017-2-19 13:26:00

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Re:在漫画中识别身边的违章 | 2016-10-23 15:10:21

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Re:在漫画中识别身边的违章 | 2016-10-15 10:05:02

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By:lkzdg(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

Re:在漫画中识别身边的违章 | 2016-10-13 12:59:29

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By:bgimq(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

原创 | 2016-9-30 16:05:53

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By:原创(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

原创 | 2016-9-28 21:22:41

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By:原创(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

原创 | 2016-9-6 21:48:05

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