臥式靜電除塵器是眾多除塵器當中的一種，臥式靜電除塵器是以靜電凈化法來收捕廢氣中的粉塵的設備，其主要是讓含塵氣體進人氣刺叭時，含塵氣體受到氣流分布板以及折流板的調整后，使氣流能較均勻地進人電場。

臥式靜(jing)電(dian)除塵器(qi)是(shi)以靜(jing)電(dian)凈化法來收捕廢氣(qi)中的(de)粉(fen)塵，它的(de)凈化工作上(shang)要是(shi)依靠電(dian)暈(yun)(yun)極(ji)(ji)(ji)和沉淀兩個系統來完成(cheng)的(de)，當含塵氣(qi)體(ti)進(jin)人(ren)(ren)氣(qi)刺叭時(shi)，含塵氣(qi)體(ti)受到氣(qi)流(liu)分布板以及折(zhe)流(liu)板的(de)調整后，使(shi)(shi)氣(qi)流(liu)能較(jiao)均勻地進(jin)人(ren)(ren)電(dian)場(chang)。在橫斷面擴大(da)的(de)作用下(xia)，氣(qi)流(liu)速(su)度迅速(su)降低，其(qi)中有些較(jiao)重(zhong)的(de)塵粒(li)(li)便(bian)失(shi)去速(su)度而沉降下(xia)來。進(jin)人(ren)(ren)電(dian)場(chang)的(de)含塵氣(qi)體(ti)由于電(dian)暈(yun)(yun)極(ji)(ji)(ji)通(tong)(tong)人(ren)(ren)高(gao)(gao)壓直(zhi)流(liu)電(dian)，則(ze)在電(dian)暈(yun)(yun)極(ji)(ji)(ji)附近產生電(dian)暈(yun)(yun)現象(xiang)，使(shi)(shi)氣(qi)體(ti)電(dian)離，電(dian)離后的(de)氣(qi)體(ti)中存在大(da)量的(de)電(dian)子(zi)(zi)和離子(zi)(zi)，這些電(dian)子(zi)(zi)和離子(zi)(zi)與進(jin)人(ren)(ren)電(dian)場(chang)的(de)粉(fen)塵結合起(qi)來，使(shi)(shi)塵粒(li)(li)帶電(dian)，帶電(dian)塵粒(li)(li)在電(dian)場(chang)力的(de)作用下(xia)趨向本設備(bei)陽極(ji)(ji)(ji)(正(zheng)極(ji)(ji)(ji)、本設備(bei)采用負高(gao)(gao)壓制(zhi))和陰(yin)極(ji)(ji)(ji)(負極(ji)(ji)(ji)) ， 釋放出(chu)(chu)電(dian)子(zi)(zi)分別沉積在相應的(de)電(dian)極(ji)(ji)(ji)上(shang)，通(tong)(tong)過設備(bei)陰(yin)陽極(ji)(ji)(ji)振(zhen)打系統的(de)振(zhen)打，使(shi)(shi)沉積在陰(yin)陽電(dian)極(ji)(ji)(ji)上(shang)的(de)粉(fen)塵振(zhen)落，進(jin)人(ren)(ren)集灰斗 通(tong)(tong)過排(pai)灰裝置放出(chu)(chu)，回(hui)收有物料，被(bei))凈化的(de)氣(qi)體(ti)排(pai)入(ru)大(da)氣(qi)。

工作原理

靜(jing)電(dian)(dian)(dian)除(chu)(chu)塵(chen)器(qi)的工(gong)作原理(li)是利用(yong)高壓電(dian)(dian)(dian)場(chang)(chang)使煙氣發生電(dian)(dian)(dian)離，氣流中(zhong)的粉塵(chen)荷電(dian)(dian)(dian)在(zai)(zai)電(dian)(dian)(dian)場(chang)(chang)作用(yong)下與氣流分離。負(fu)極由(you)不同(tong)(tong)斷(duan)面形狀(zhuang)的金(jin)屬(shu)導(dao)線制成(cheng)(cheng)，叫(jiao)放(fang)電(dian)(dian)(dian)電(dian)(dian)(dian)極。正(zheng)極由(you)不同(tong)(tong)幾何形狀(zhuang)的金(jin)屬(shu)板制成(cheng)(cheng)，叫(jiao)集塵(chen)電(dian)(dian)(dian)極。靜(jing)電(dian)(dian)(dian)除(chu)(chu)塵(chen)器(qi)的性(xing)能受粉塵(chen)性(xing)質、設(she)備構造和煙氣流速等三個因素的影(ying)響。粉塵(chen)的比電(dian)(dian)(dian)阻是評價導(dao)電(dian)(dian)(dian)性(xing)的指(zhi)標，它對除(chu)(chu)塵(chen)效率有(you)直接的影(ying)響。比電(dian)(dian)(dian)阻過(guo)低，塵(chen)粒難以保持在(zai)(zai)集塵(chen)電(dian)(dian)(dian)極上，致(zhi)使其重返氣流。比電(dian)(dian)(dian)阻過(guo)高，到達集塵(chen)電(dian)(dian)(dian)極的塵(chen)粒電(dian)(dian)(dian)荷不易放(fang)出，在(zai)(zai)塵(chen)層之間形成(cheng)(cheng)電(dian)(dian)(dian)壓梯度會(hui)產(chan)生局部擊(ji)穿和放(fang)電(dian)(dian)(dian)現象。這(zhe)些情況都(dou)會(hui)造成(cheng)(cheng)除(chu)(chu)塵(chen)效率下降。

電(dian)(dian)除塵器的(de)基(ji)本原理是利用(yong)電(dian)(dian)力捕(bu)集(ji)(ji)煙(yan)氣(qi)中的(de)粉(fen)塵，主要包括以下(xia)四(si)個相互(hu)有關的(de)物(wu)理過(guo)程: (1) 氣(qi)體(ti)的(de)電(dian)(dian)離。(2) 粉(fen)塵的(de)荷(he)電(dian)(dian)。(3) 荷(he)電(dian)(dian)粉(fen)塵向電(dian)(dian)極移動。(4) 荷(he)電(dian)(dian)粉(fen)塵的(de)捕(bu)集(ji)(ji)。