除尘设备密闭罩是将污染源全部围挡起来，使物的扩散限制在一个小的密闭空间内，并且用足够的排风盘使罩内产生负压，以能物不从某些孔口和缝隙逸出。有些设备本身密闭，只需按要求接上排风管即可，如滚筒筛、清理滚简等。 

GENJUANZHUANGXINGSHI，MIBIZHAOFENWEIGUDINGSHIHEYIDONGSHIERZHONG，RUJIUSHADAISHISHUSONGJIDEMIBIZHAOSHIGUDINGSHIDE，DAXINGLUOSHAJIDEMIBIZHAOSHIYIDONGDE。

GENJUMIBICHENGDU，MIBIZHAOFENWEIJUBUMIBIZHAO、ZHENGTIMIBIZHAO、DARONGJIMIBIXIAOSHISANZHONG。

JUBUMIBIZHAOSHIJIANGSHEBEIYANGCHENDIANJUBUMIBI，GONGYISHEBEILUZAIMIBIZHAOWAI.RUPIDAISHUSONGJIDELUOLIAODIAN。JUBUMIBIZHAODERONGJIJIAOXIAO，SHIYONGYUCHANCHENQILIUSUDUJIAOXIAO，QIEJIZHONG、LIANXUYANGCHENHESHUNSHIZENGYABUDADECHENYUAN。 

ZHENGTIMIBIZHAOSHIJIANGCHANSHENGFENCHENDESHEBEIHUODIDIANDABUFENMIBIQILAI，ZHIBASHEBEIDECHUANDONGBUFENLIUZAIZHAOWAI，RUGUNJIANSHAIZHENGTIMIBIZHAOSHIYONGYUJIXIEZHENDONGJIAODA，YANGCHENMIANJIHECHANCHENQILIUSUDUJIAODADECHENYUAN。

DARONGJIMIBIXIAOSHISHIJIANGCHANSHENGFENCHENDESHEBEIHUODIDIANQUANBUMIBIQILAI，RUZHENDONGSHAIMIBIXIAOSHI.MIBIXIAOSHIRONGJIDA，KEYIHUANCHONGHANCHENQILIU，JIANSHAOJUBUZHENGYA.SHIYONGYUYANGCHENDIANDUO、YANGCHENMIANJIHECHANCHENQILIUSUDUDA，BINGQIEJIANXIUPINFANHUODINGQIHUANLINGBUJIANDESHEBEI。