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                                              “除尘设备”?#26800;摹?#23576;”指的具体是什么?

                                              作者: 发布时间:2017-05-26 浏览?#38382;?70

                                                “除尘”所涉及的多相混合物也称气相悬浮体系或气溶胶即通常所说的“粉尘”。它们是沉降速度可以忽略的微小固体粒子、液体粒子或这些粒子在气体介质?#26800;?#24748;浮体系。

                                                粉尘是生产环境中有害物质存在的一种主要形态,它会导致尘肺的发生。生产性粉尘是指在生产过程中形成并能较长时间飘浮在空气?#26800;?#22266;体微粒.分散于其?#26800;南?#23567;颗粒叫做尘粒或微粒,而尘粒的堆积状态叫做粉体。

                                                根据成因的不同,气相悬浮系可分为两大类:分散性的和凝聚性的。分散性的尘粒?#35805;?#31216;为粉尘或尘灰,是将固体破碎或?#24515;?#25104;粉末或液体喷成雾沫而成,或由于其他机械原因,致使固体或液体成为微粒,飞扬而悬浮于气休中。粉尘微粒大小通常大于lum.

                                                凝聚性的尘粒是气体或蒸气质点的凝聚。或由两种气体或蒸气经过化学?#20174;?#32780;得。凝聚所得微粒,固体的称为烟,液体的称为雾。烟与雾的尘粒人小通常在0.014m-0. 015m之间.


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