在线观看一区二区三区视频_產(chǎn)生粉塵爆炸的條件是什么？粉塵爆炸具有哪些特點(diǎn)呢？-東莞華之通環(huán)?？萍加邢薰?/title> <meta name="keywords" content="脈沖布袋除塵器,脈沖布袋除塵器,旋風(fēng)除塵器,東莞除塵器降溫設備,凈化設備" /> <meta name="description" content="產(chǎn)生粉塵爆炸的條件是什么？發(fā)生粉塵爆炸的首要條件是粉塵本身可燃，即能與空氣中的氧氣發(fā)生氧化反應。如前述的媒塵、鋁粉、面粉等；其次，粉塵要懸浮在空氣中達到一定濃度（超過(guò)其爆炸下限），粉塵呈懸浮狀才能保證其表面與空氣（氧氣）充足接觸，堆積粉塵不會(huì )發(fā)生爆炸；再次，要有足夠引起粉塵爆炸的起始能量。只要同時(shí)具備上述三個(gè)條件，就會(huì )導致粉塵爆炸。與可燃氣混合氣爆炸相比，粉塵爆炸具有以下特點(diǎn)：（1）從起爆條件方面" /> <link href="/favicon.ico" rel="shortcut icon" /> <link rel="stylesheet" href="http://img.dghuatonghb.com/staticres/css/index.css?v=12345">  <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> </head> <body> <div style="position:fixed;left:-9000px;top:-9000px;"><ruby id="6sf22"><dfn id="6sf22"><nav id="6sf22"></nav></dfn></ruby><rp id="6sf22"></rp><small id="6sf22"><ol id="6sf22"></ol></small><nobr id="6sf22"><bdo id="6sf22"><xmp id="6sf22"></xmp></bdo></nobr><mark 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)導致粉塵爆炸。</p><p><br/></p><p>與可燃氣混合氣爆炸相比，粉塵爆炸具有以下特點(diǎn)：</p><p>（1）從起爆條件方面看：</p><p> ①只有達到一定濃度（達到或超過(guò)爆炸下限）的漂浮粉塵云才可能發(fā)生爆炸。而要達到這個(gè)條件需要有一定數量的粉塵并且有外力（如風(fēng)或機械力）將粉塵揚起才成。而可燃氣體通過(guò)自然擴散就可能形成爆炸性混合物。</p><p> ②粉塵燃燒是一種固體燃燒，其燃燒過(guò)程比氣體復雜，點(diǎn)燃粉塵所需的初始能量也比點(diǎn)燃氣體的大得多（相差近百倍）。</p><p>（2）從爆炸的后果及危害方面看：</p><p> ①一般說(shuō)來(lái)，與可燃氣體爆炸相比，粉塵爆炸燃燒的時(shí)間長(cháng)，產(chǎn)生的能量大，造成的破壞及燒毀的程度比較嚴重。</p><p> ②粉塵爆炸引起的沖擊波，會(huì )使周?chē)亩逊e粉塵飛揚起來(lái)，從而可連續引起二次、三次爆炸，使得危害擴大。</p><p>（3）粉塵容易引起不完全燃燒，因此在產(chǎn)物氣體中含有大量一氧化碳，有發(fā)生一氧化碳中毒的危險。</p><p>（4）粉塵爆炸時(shí)因為粒子一邊燃燒一邊飛散，容易使周?chē)梭w受到灼傷。</p><p><br/></p><p>主營(yíng)產(chǎn)品：中央除塵設備、東莞除塵設備、家私廠(chǎng)除塵設備、東莞除塵器、工業(yè)除塵器、鍋爐除塵器、廢氣處理設備、東莞螺旋風(fēng)管、除塵風(fēng)機、風(fēng)管及配件等通風(fēng)除塵設備</p><p><br/></p><p>專(zhuān)業(yè)承接：通風(fēng)工程、除塵工程、粉塵治理工程、家具廠(chǎng)粉塵處理、車(chē)間粉塵處理、廢氣處理工程、凈化工程、東莞除塵工程、家具廠(chǎng)除塵工程等通風(fēng)除塵工程</p><p><br/></p> <div id="ssuscoas" class="clear"></div> </div> <div id="ssuscoas" class="jiathis_style"> <div id="ssuscoas" class="bdsharebuttonbox 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