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μm)。除塵系統軟件內的鋁粉塵濃度值通常是高過(guò)爆炸低限的，工作場(chǎng)所內長(cháng)期性地基沉降的粉塵受外力作用沖擊性飛舞，產(chǎn)生的粉塵云也是能夠做到爆炸低限的。</p><p>(3)點(diǎn)火源：鋁的粉塵云點(diǎn)燃溫度為560 ℃，最少點(diǎn)火能29 mJ，歸屬于高爆炸等級[1]。金屬鋁在打磨拋光全過(guò)程中造成的火花，辦公環(huán)境中的用火、電氣設備火花、靜電感應、熱表層均可組成點(diǎn)火源。</p><p>(4)受限空間：金屬鋁打磨拋光涉及到的生產(chǎn)線(xiàn)、除塵設備、通風(fēng)風(fēng)管都屬受限空間，一般除塵設備內粉塵的濃度值最大，產(chǎn)生爆炸的概率較大。除塵設備一旦產(chǎn)生爆炸，震波沿除灰通風(fēng)風(fēng)管傳回，將堆積在工作場(chǎng)所櫥柜臺面、路面、柱梁上的粉塵吹揚起來(lái)，產(chǎn)生粉塵云，引起二次爆炸。二次爆炸的動(dòng)能、殺傷力一般比一次爆炸更高。</p><p>(5)O2：是鋁粉塵爆炸的燃燒汽體，也是實(shí)際操作工作人員必不可少的存活汽體。一切正常狀況下工作場(chǎng)所的氧氣濃度在20 %~22 %，無(wú)法人為因素調整。</p><p>執信環(huán)保專(zhuān)注工業(yè)煙塵凈化設備制造，<a target="_blank" title="執信環(huán)保防爆除塵器"><strong>鋁粉防爆除塵器</strong></a>,等環(huán)保除塵設備，廠(chǎng)家直銷(xiāo)！</p></span></div> </div></div> <div id="z5lvbn3" class="row"> <div id="3pjdxxj" class="col-sm-12 col-lg-12"><div id="5jbtpbb" class="xg_prevnext p1829m7e6d19d35a15fee8"><span id="l5njdbb" class="xg_prevnext_item"><a class="xg_prevnext_up"><span id="htl5hxj" 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