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(shi)靜(jing)電(dian)(dian)(dian)除塵(chen)(chen)器是以靜(jing)電(dian)(dian)(dian)凈(jing)化(hua)法來收捕廢氣(qi)(qi)(qi)中的(de)(de)粉塵(chen)(chen)，它的(de)(de)凈(jing)化(hua)工作上(shang)(shang)要(yao)是依靠電(dian)(dian)(dian)暈(yun)極(ji)和(he)沉(chen)淀兩(liang)個系統來完成的(de)(de)，當(dang)含(han)塵(chen)(chen)氣(qi)(qi)(qi)體(ti)進(jin)人(ren)氣(qi)(qi)(qi)刺叭時，含(han)塵(chen)(chen)氣(qi)(qi)(qi)體(ti)受(shou)到氣(qi)(qi)(qi)流分布板以及折流板的(de)(de)調整后(hou)，使氣(qi)(qi)(qi)流能較均(jun)勻地進(jin)人(ren)電(dian)(dian)(dian)場。在橫斷(duan)面擴(kuo)大(da)的(de)(de)作用下(xia)，氣(qi)(qi)(qi)流速度迅速降低，其(qi)中有些(xie)較重(zhong)的(de)(de)塵(chen)(chen)粒(li)便失(shi)去速度而沉(chen)降下(xia)來。進(jin)人(ren)電(dian)(dian)(dian)場的(de)(de)含(han)塵(chen)(chen)氣(qi)(qi)(qi)體(ti)由于電(dian)(dian)(dian)暈(yun)極(ji)通(tong)人(ren)高壓直流電(dian)(dian)(dian)，則在電(dian)(dian)(dian)暈(yun)極(ji)附近(jin)產生電(dian)(dian)(dian)暈(yun)現象，使氣(qi)(qi)(qi)體(ti)電(dian)(dian)(dian)離(li)，電(dian)(dian)(dian)離(li)后(hou)的(de)(de)氣(qi)(qi)(qi)體(ti)中存在大(da)量的(de)(de)電(dian)(dian)(dian)子和(he)離(li)子，這些(xie)電(dian)(dian)(dian)子和(he)離(li)子與(yu)進(jin)人(ren)電(dian)(dian)(dian)場的(de)(de)粉塵(chen)(chen)結(jie)合起來，使塵(chen)(chen)粒(li)帶(dai)(dai)電(dian)(dian)(dian)，帶(dai)(dai)電(dian)(dian)(dian)塵(chen)(chen)粒(li)在電(dian)(dian)(dian)場力(li)的(de)(de)作用下(xia)趨向本設備(bei)陽(yang)極(ji)(正(zheng)極(ji)、本設備(bei)采用負高壓制)和(he)陰(yin)(yin)(yin)極(ji)(負極(ji)) ， 釋放(fang)出電(dian)(dian)(dian)子分別(bie)沉(chen)積在相應(ying)的(de)(de)電(dian)(dian)(dian)極(ji)上(shang)(shang)，通(tong)過(guo)設備(bei)陰(yin)(yin)(yin)陽(yang)極(ji)振打(da)系統的(de)(de)振打(da)，使沉(chen)積在陰(yin)(yin)(yin)陽(yang)電(dian)(dian)(dian)極(ji)上(shang)(shang)的(de)(de)粉塵(chen)(chen)振落，進(jin)人(ren)集(ji)灰斗 通(tong)過(guo)排(pai)灰裝置放(fang)出，回收有物料，被)凈(jing)化(hua)的(de)(de)氣(qi)(qi)(qi)體(ti)排(pai)入大(da)氣(qi)(qi)(qi)。

工作(zuo)原理

靜電(dian)(dian)除塵(chen)(chen)器(qi)的(de)(de)(de)工(gong)作(zuo)原理是(shi)利用高(gao)壓電(dian)(dian)場(chang)使煙(yan)氣(qi)發生(sheng)電(dian)(dian)離，氣(qi)流中的(de)(de)(de)粉(fen)塵(chen)(chen)荷(he)(he)電(dian)(dian)在電(dian)(dian)場(chang)作(zuo)用下與氣(qi)流分(fen)離。負極(ji)(ji)(ji)由不同斷面(mian)形狀的(de)(de)(de)金屬導(dao)線制成(cheng)，叫(jiao)放(fang)電(dian)(dian)電(dian)(dian)極(ji)(ji)(ji)。正極(ji)(ji)(ji)由不同幾何形狀的(de)(de)(de)金屬板制成(cheng)，叫(jiao)集塵(chen)(chen)電(dian)(dian)極(ji)(ji)(ji)。靜電(dian)(dian)除塵(chen)(chen)器(qi)的(de)(de)(de)性(xing)能受粉(fen)塵(chen)(chen)性(xing)質、設(she)備構造(zao)和(he)煙(yan)氣(qi)流速等三個因素的(de)(de)(de)影響。粉(fen)塵(chen)(chen)的(de)(de)(de)比電(dian)(dian)阻是(shi)評價(jia)導(dao)電(dian)(dian)性(xing)的(de)(de)(de)指標，它對除塵(chen)(chen)效率(lv)(lv)有直(zhi)接的(de)(de)(de)影響。比電(dian)(dian)阻過低，塵(chen)(chen)粒難以保持在集塵(chen)(chen)電(dian)(dian)極(ji)(ji)(ji)上，致使其重返氣(qi)流。比電(dian)(dian)阻過高(gao)，到達集塵(chen)(chen)電(dian)(dian)極(ji)(ji)(ji)的(de)(de)(de)塵(chen)(chen)粒電(dian)(dian)荷(he)(he)不易放(fang)出，在塵(chen)(chen)層(ceng)之間形成(cheng)電(dian)(dian)壓梯度會產生(sheng)局部擊穿(chuan)和(he)放(fang)電(dian)(dian)現象。這(zhe)些情況都會造(zao)成(cheng)除塵(chen)(chen)效率(lv)(lv)下降。

電(dian)除塵器(qi)的(de)基本原理是(shi)利用電(dian)力捕(bu)集煙氣(qi)中的(de)粉塵，主要(yao)包(bao)括以下四個相互有(you)關的(de)物(wu)理過程: (1) 氣(qi)體(ti)的(de)電(dian)離(li)。(2) 粉塵的(de)荷(he)電(dian)。(3) 荷(he)電(dian)粉塵向電(dian)極移(yi)動。(4) 荷(he)電(dian)粉塵的(de)捕(bu)集。