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(wo)式靜電(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器是以(yi)(yi)靜電(dian)(dian)(dian)凈(jing)化法(fa)來收(shou)捕廢氣(qi)(qi)中的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)，它的(de)(de)(de)凈(jing)化工作上(shang)要(yao)是依靠電(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)和沉淀兩個(ge)系統來完成的(de)(de)(de)，當含塵(chen)(chen)(chen)(chen)(chen)氣(qi)(qi)體(ti)(ti)(ti)進人(ren)氣(qi)(qi)刺叭時，含塵(chen)(chen)(chen)(chen)(chen)氣(qi)(qi)體(ti)(ti)(ti)受到(dao)氣(qi)(qi)流分布板(ban)以(yi)(yi)及折流板(ban)的(de)(de)(de)調(diao)整后，使(shi)(shi)氣(qi)(qi)流能較均勻地(di)進人(ren)電(dian)(dian)(dian)場(chang)。在橫斷面擴大(da)(da)的(de)(de)(de)作用下，氣(qi)(qi)流速度(du)迅速降低，其(qi)中有些(xie)較重的(de)(de)(de)塵(chen)(chen)(chen)(chen)(chen)粒(li)便失去速度(du)而沉降下來。進人(ren)電(dian)(dian)(dian)場(chang)的(de)(de)(de)含塵(chen)(chen)(chen)(chen)(chen)氣(qi)(qi)體(ti)(ti)(ti)由于電(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)通(tong)人(ren)高壓直流電(dian)(dian)(dian)，則在電(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)附近產(chan)生(sheng)電(dian)(dian)(dian)暈(yun)現象，使(shi)(shi)氣(qi)(qi)體(ti)(ti)(ti)電(dian)(dian)(dian)離，電(dian)(dian)(dian)離后的(de)(de)(de)氣(qi)(qi)體(ti)(ti)(ti)中存在大(da)(da)量的(de)(de)(de)電(dian)(dian)(dian)子(zi)(zi)和離子(zi)(zi)，這(zhe)些(xie)電(dian)(dian)(dian)子(zi)(zi)和離子(zi)(zi)與進人(ren)電(dian)(dian)(dian)場(chang)的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)結(jie)合起來，使(shi)(shi)塵(chen)(chen)(chen)(chen)(chen)粒(li)帶電(dian)(dian)(dian)，帶電(dian)(dian)(dian)塵(chen)(chen)(chen)(chen)(chen)粒(li)在電(dian)(dian)(dian)場(chang)力的(de)(de)(de)作用下趨向本設備陽極(ji)(ji)(ji)(正極(ji)(ji)(ji)、本設備采用負(fu)高壓制)和陰(yin)極(ji)(ji)(ji)(負(fu)極(ji)(ji)(ji)) ， 釋放出電(dian)(dian)(dian)子(zi)(zi)分別(bie)沉積(ji)在相(xiang)應的(de)(de)(de)電(dian)(dian)(dian)極(ji)(ji)(ji)上(shang)，通(tong)過設備陰(yin)陽極(ji)(ji)(ji)振打(da)系統的(de)(de)(de)振打(da)，使(shi)(shi)沉積(ji)在陰(yin)陽電(dian)(dian)(dian)極(ji)(ji)(ji)上(shang)的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)振落，進人(ren)集灰(hui)斗 通(tong)過排(pai)灰(hui)裝置放出，回收(shou)有物料，被)凈(jing)化的(de)(de)(de)氣(qi)(qi)體(ti)(ti)(ti)排(pai)入(ru)大(da)(da)氣(qi)(qi)。

工(gong)作原理

靜電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器的(de)(de)(de)工作原理(li)是利用高(gao)壓電(dian)(dian)(dian)場使煙(yan)氣發生(sheng)(sheng)電(dian)(dian)(dian)離，氣流中的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)在(zai)電(dian)(dian)(dian)場作用下與氣流分離。負極(ji)由不同斷面形狀(zhuang)的(de)(de)(de)金(jin)屬導線制(zhi)成，叫放(fang)電(dian)(dian)(dian)電(dian)(dian)(dian)極(ji)。正極(ji)由不同幾(ji)何形狀(zhuang)的(de)(de)(de)金(jin)屬板制(zhi)成，叫集(ji)塵(chen)(chen)(chen)(chen)(chen)電(dian)(dian)(dian)極(ji)。靜電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器的(de)(de)(de)性能受粉(fen)塵(chen)(chen)(chen)(chen)(chen)性質、設備構造和(he)煙(yan)氣流速(su)等三個因素的(de)(de)(de)影響。粉(fen)塵(chen)(chen)(chen)(chen)(chen)的(de)(de)(de)比(bi)(bi)電(dian)(dian)(dian)阻(zu)是評(ping)價(jia)導電(dian)(dian)(dian)性的(de)(de)(de)指標(biao)，它對除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)效率(lv)有直接的(de)(de)(de)影響。比(bi)(bi)電(dian)(dian)(dian)阻(zu)過低，塵(chen)(chen)(chen)(chen)(chen)粒(li)難以保持在(zai)集(ji)塵(chen)(chen)(chen)(chen)(chen)電(dian)(dian)(dian)極(ji)上(shang)，致使其重(zhong)返(fan)氣流。比(bi)(bi)電(dian)(dian)(dian)阻(zu)過高(gao)，到達(da)集(ji)塵(chen)(chen)(chen)(chen)(chen)電(dian)(dian)(dian)極(ji)的(de)(de)(de)塵(chen)(chen)(chen)(chen)(chen)粒(li)電(dian)(dian)(dian)荷不易(yi)放(fang)出，在(zai)塵(chen)(chen)(chen)(chen)(chen)層之(zhi)間形成電(dian)(dian)(dian)壓梯度(du)會產生(sheng)(sheng)局部(bu)擊(ji)穿和(he)放(fang)電(dian)(dian)(dian)現象。這(zhe)些情況都(dou)會造成除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)效率(lv)下降。

電(dian)(dian)除塵(chen)器的(de)基本原理(li)是利(li)用電(dian)(dian)力捕(bu)集(ji)煙氣中的(de)粉塵(chen)，主(zhu)要包括以下四(si)個相互有關的(de)物理(li)過(guo)程: (1) 氣體的(de)電(dian)(dian)離(li)。(2) 粉塵(chen)的(de)荷(he)電(dian)(dian)。(3) 荷(he)電(dian)(dian)粉塵(chen)向電(dian)(dian)極移動。(4) 荷(he)電(dian)(dian)粉塵(chen)的(de)捕(bu)集(ji)。