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扑救易燃固体、易燃物品火灾的基本对策 | 2013-3-2 8:32:00

  易燃固体、易燃物品一般都可用水或泡沫扑救,相对于其他种类的化学危险物品而言是比较容易扑救的,只要控制住燃烧范围,逐步扑灭即可。但也有少数易燃固体、自燃物品的扑救方法比较特殊,如24—二硝基苯甲醚、二硝基萘、萘、黄磷等。

  (1)24-二硝基苯甲醚、二硝基萘、萘等是能升华的易燃固体,受热发出易燃蒸气。火灾时可用雾状水、泡沫扑救并切断火势蔓延途径,但应注意,不能以为明火焰扑灭即已完成灭火工作,因为受热以后升华的易燃蒸气能在不知不觉中飘逸,在上层与空气能形成爆炸性混合物,尤其是在室内,易发生爆燃。因此,扑救这类物品火灾千万不能被假像所迷惑。在扑救过程中应不时向燃烧区域上空及周围喷射雾状水,并用水浇灭燃烧区域及其周围的一切火源。

  (2)黄磷是自燃点很低、在空气中能很快氧化升温并自燃的自燃物品。遇黄磷火灾时,首先应切断火势蔓延途径,控制燃烧范围。对着火的黄磷应用低压水或雾状水扑救。高压直流水冲击能引起黄磷飞溅,导致灾害扩大。黄磷熔融液体流淌时应用泥土、沙袋等筑堤拦截并用雾状水冷却,对磷块和冷却后已固化的黄磷,应用钳子钳入贮水容器中。来不及钳时可先用沙土掩盖,但应做好标记,等火势扑灭后,再逐步集中到贮水容器中。

  (3)少数易燃固体和自燃物品不能用水和泡沫扑救,如三硫化二磷、铝粉、烷基铝、保险粉等,应根据具体情况分别处理,宜选用干沙和不用压力喷射的干粉扑救。

Re:扑救易燃固体、易燃物品火灾的基本对策 | 2013-3-2 8:33:42
章仁根易燃固体、易燃物品火灾的扑救
By:章仁根 | 个人主页 | 引用 | 返回 | 删除 | 回复
原创 | 2016-9-6 20:15:22
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原创 | 2016-9-28 19:52:34
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原创 | 2016-9-30 14:32:58
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Re:在漫画中识别身边的违章 | 2016-10-13 16:55:11
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Re:在漫画中识别身边的违章 | 2016-10-16 1:42:37
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Re:在漫画中识别身边的违章 | 2016-10-16 15:32:43
nkyce(游客)http://www.esafety.cn/blog/wll/85686/archives/2011/105485.html
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By:nkyce(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 | 2016-10-19 14:57:37
ptxbf(游客)http://www.esafety.cn/blog/wll/73171/archives/2011/110913.html
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Re:在漫画中识别身边的违章 | 2016-10-20 17:57:37
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Re:在漫画中识别身边的违章 | 2016-10-22 23:21:05
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Re:在漫画中识别身边的违章 | 2016-10-23 13:10:01
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Re:在漫画中识别身边的违章 | 2017-2-20 18:46:43
vxbeh(游客)http://wen.28.com/article/133296
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