XWD型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)(dian)(dian)除塵器是(shi)以靜(jing)電(dian)(dian)(dian)凈(jing)化法來收捕廢氣(qi)中的(de)粉塵，它的(de)凈(jing)化工作上要是(shi)依靠(kao)電(dian)(dian)(dian)暈(yun)(yun)極(ji)和(he)沉淀兩個系(xi)統來完成的(de)，當含(han)塵氣(qi)體(ti)(ti)進(jin)人氣(qi)刺叭時(shi)，含(han)塵氣(qi)體(ti)(ti)受(shou)到氣(qi)流分布(bu)板(ban)以及(ji)折流板(ban)的(de)調整后(hou)，使氣(qi)流能較均勻(yun)地進(jin)人電(dian)(dian)(dian)場。在(zai)橫斷面擴(kuo)大的(de)作用下，氣(qi)流速度(du)(du)迅速降低，其中有些較重的(de)塵粒(li)便失去速度(du)(du)而沉降下來。進(jin)人電(dian)(dian)(dian)場的(de)含(han)塵氣(qi)體(ti)(ti)由于電(dian)(dian)(dian)暈(yun)(yun)極(ji)通(tong)人高壓(ya)直(zhi)流電(dian)(dian)(dian)，則(ze)在(zai)電(dian)(dian)(dian)暈(yun)(yun)極(ji)附(fu)近產(chan)生電(dian)(dian)(dian)暈(yun)(yun)現象，使氣(qi)體(ti)(ti)電(dian)(dian)(dian)離(li)(li)，電(dian)(dian)(dian)離(li)(li)后(hou)的(de)氣(qi)體(ti)(ti)中存在(zai)大量(liang)的(de)電(dian)(dian)(dian)子(zi)和(he)離(li)(li)子(zi)，這些電(dian)(dian)(dian)子(zi)和(he)離(li)(li)子(zi)與(yu)進(jin)人電(dian)(dian)(dian)場的(de)粉塵結合起(qi)來，使塵粒(li)帶(dai)電(dian)(dian)(dian)，帶(dai)電(dian)(dian)(dian)塵粒(li)在(zai)電(dian)(dian)(dian)場力的(de)作用下趨向本設(she)備(bei)陽極(ji)(正極(ji)、本設(she)備(bei)采用負高壓(ya)制)和(he)陰(yin)(yin)極(ji)(負極(ji)) ， 釋放出(chu)電(dian)(dian)(dian)子(zi)分別(bie)沉積在(zai)相(xiang)應的(de)電(dian)(dian)(dian)極(ji)上，通(tong)過設(she)備(bei)陰(yin)(yin)陽極(ji)振打(da)系(xi)統的(de)振打(da)，使沉積在(zai)陰(yin)(yin)陽電(dian)(dian)(dian)極(ji)上的(de)粉塵振落，進(jin)人集灰斗 通(tong)過排灰裝置放出(chu)，回收有物料，被)凈(jing)化的(de)氣(qi)體(ti)(ti)排入大氣(qi)。

工作(zuo)原理

靜電(dian)(dian)(dian)(dian)(dian)除塵(chen)器的工(gong)作原理是利用高(gao)壓電(dian)(dian)(dian)(dian)(dian)場使煙(yan)氣(qi)發生(sheng)電(dian)(dian)(dian)(dian)(dian)離，氣(qi)流(liu)(liu)中的粉(fen)(fen)塵(chen)荷電(dian)(dian)(dian)(dian)(dian)在(zai)電(dian)(dian)(dian)(dian)(dian)場作用下與氣(qi)流(liu)(liu)分離。負(fu)極(ji)由不(bu)同斷面形狀(zhuang)的金屬(shu)(shu)導(dao)線(xian)制成(cheng)(cheng)，叫放(fang)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)極(ji)。正極(ji)由不(bu)同幾何形狀(zhuang)的金屬(shu)(shu)板制成(cheng)(cheng)，叫集塵(chen)電(dian)(dian)(dian)(dian)(dian)極(ji)。靜電(dian)(dian)(dian)(dian)(dian)除塵(chen)器的性(xing)能受(shou)粉(fen)(fen)塵(chen)性(xing)質、設備構造(zao)和煙(yan)氣(qi)流(liu)(liu)速等三個因素(su)的影響(xiang)(xiang)。粉(fen)(fen)塵(chen)的比電(dian)(dian)(dian)(dian)(dian)阻是評價(jia)導(dao)電(dian)(dian)(dian)(dian)(dian)性(xing)的指標，它對除塵(chen)效率有直(zhi)接的影響(xiang)(xiang)。比電(dian)(dian)(dian)(dian)(dian)阻過(guo)低，塵(chen)粒難以保持在(zai)集塵(chen)電(dian)(dian)(dian)(dian)(dian)極(ji)上，致(zhi)使其重返(fan)氣(qi)流(liu)(liu)。比電(dian)(dian)(dian)(dian)(dian)阻過(guo)高(gao)，到(dao)達集塵(chen)電(dian)(dian)(dian)(dian)(dian)極(ji)的塵(chen)粒電(dian)(dian)(dian)(dian)(dian)荷不(bu)易放(fang)出，在(zai)塵(chen)層之間形成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)壓梯(ti)度會(hui)產生(sheng)局部擊穿和放(fang)電(dian)(dian)(dian)(dian)(dian)現象。這些情況都會(hui)造(zao)成(cheng)(cheng)除塵(chen)效率下降(jiang)。

電除塵器的(de)(de)(de)(de)基本(ben)原理是利用電力捕集煙氣(qi)中的(de)(de)(de)(de)粉塵，主要包括(kuo)以(yi)下(xia)四個(ge)相互(hu)有關的(de)(de)(de)(de)物理過程: (1) 氣(qi)體的(de)(de)(de)(de)電離。(2) 粉塵的(de)(de)(de)(de)荷電。(3) 荷電粉塵向電極移動。(4) 荷電粉塵的(de)(de)(de)(de)捕集。