防瓦斯爆炸事故的措施有哪些？--qsf999的安全生产小屋

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防瓦斯爆炸事故的措施有哪些？ | 2011-8-5 10:30:00

防瓦斯爆炸事故的措施有哪些？

预防瓦斯爆炸的有效措施，主要从防止瓦斯积聚和消除火源两方面着手。

　　1．防止瓦斯积聚的措施

　　(1)加强通风。使瓦斯浓度降低到《煤矿安全规程》规定的浓度以下，即采掘工作面的进风风流中不超过0．5％，回风风流不超过1％，矿井总回风流中不超过0．75％。

　　(2)加强检查工作。及时检查各用风地点的通风状况和瓦斯浓度，查明隐患进行处理，是日常进行瓦斯管理的重要内容。我国20世纪80年代所用的甲烷检查仪器有：光学甲烷检定器、热放式甲烷检定器、甲烷警报器和甲烷遥测警报仪等。90年代以后使用比较先进的TX系列智能便携式气体监测仪和遥测仪器等。

　　(3)对瓦斯含量大的煤层，进行瓦斯抽放，降低煤层及采空区的瓦斯涌出量。

　　2．防止瓦斯引燃的措施

　　(1)井口房、瓦斯抽放站及主要通风机房周围20m内禁止使用明火。

　　(2)瓦斯矿井要使用安全照明灯，井下禁止打开矿灯，禁止携带烟草及点火工具下井。

　　(3)严格管理井下火区。

　　(4)严格执行放炮制度。

　　(5)严格掘进工作面的局部通风机管理工作，局部通风机要设有风电闭锁装置。

　　(6)瓦斯矿井的电气设备要符合《煤矿安全规程》关于防爆性能的规定。

　　(7)随采矿机械化程度的提高，防止机械摩擦火花引燃瓦斯显得日益重要。煤矿井下由于摩擦火花而引起的瓦斯爆炸事故占有相当的比例，因此不少国家对这个问题进行了研究，并提出，在摩擦部件的金属表面溶敷一层活性小的金属(如铬)，使形成的摩擦火花不能引燃瓦斯；在铝合金的表面涂各种涂料，以防止摩擦火花的发生和金属中加入少量的铍，降低摩擦火花的点燃性等。

By:qsf999 | 阅读全文 | 回复(15) | 引用通告 | 编辑

Re:在漫画中识别身边的违章 | 2017-3-4 15:05:35

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http://www.metacafe.com/videos_about/20161008%3A%E4%BA%9A%E8%B1%AA%E5%A8%B1%E4%B9%90%E6%8F%90%E6%AC%BE%E5%BF%AB%E5%90%97%28Q%29952499%28Q%29/
http://www.metacafe.com/videos_about/20161008%3A%E4%BA%9A%E8%B1%AA%E5%A8%B1%E4%B9%90%E5%B9%B3%E5%8F%B0%E6%8F%90%E6%AC%BE%E5%BF%AB%E5%90%97%28Q%29952499%28Q%29/

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

原创 | 2016-9-30 16:05:22

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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 21:22:13

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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 21:47:38

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By:原创(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

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