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。
臥式靜電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)是以(yi)靜電(dian)(dian)(dian)(dian)(dian)(dian)凈化(hua)法來(lai)收捕廢氣(qi)(qi)中的(de)(de)(de)粉(fen)(fen)塵(chen)(chen)(chen),它的(de)(de)(de)凈化(hua)工作(zuo)(zuo)上要是依靠電(dian)(dian)(dian)(dian)(dian)(dian)暈極(ji)和沉(chen)(chen)(chen)淀兩個系(xi)統來(lai)完成(cheng)的(de)(de)(de),當含(han)塵(chen)(chen)(chen)氣(qi)(qi)體(ti)進(jin)(jin)(jin)人氣(qi)(qi)刺叭(ba)時,含(han)塵(chen)(chen)(chen)氣(qi)(qi)體(ti)受到氣(qi)(qi)流(liu)分布板以(yi)及折流(liu)板的(de)(de)(de)調整后,使(shi)氣(qi)(qi)流(liu)能較均勻(yun)地(di)進(jin)(jin)(jin)人電(dian)(dian)(dian)(dian)(dian)(dian)場。在(zai)(zai)(zai)橫斷面(mian)擴大的(de)(de)(de)作(zuo)(zuo)用(yong)下(xia),氣(qi)(qi)流(liu)速度(du)迅速降低,其中有些(xie)較重的(de)(de)(de)塵(chen)(chen)(chen)粒(li)(li)便失去速度(du)而沉(chen)(chen)(chen)降下(xia)來(lai)。進(jin)(jin)(jin)人電(dian)(dian)(dian)(dian)(dian)(dian)場的(de)(de)(de)含(han)塵(chen)(chen)(chen)氣(qi)(qi)體(ti)由于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)暈極(ji)通(tong)(tong)人高壓直流(liu)電(dian)(dian)(dian)(dian)(dian)(dian),則在(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)暈極(ji)附(fu)近產(chan)生(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)暈現象,使(shi)氣(qi)(qi)體(ti)電(dian)(dian)(dian)(dian)(dian)(dian)離,電(dian)(dian)(dian)(dian)(dian)(dian)離后的(de)(de)(de)氣(qi)(qi)體(ti)中存在(zai)(zai)(zai)大量的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)和離子(zi),這些(xie)電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)和離子(zi)與進(jin)(jin)(jin)人電(dian)(dian)(dian)(dian)(dian)(dian)場的(de)(de)(de)粉(fen)(fen)塵(chen)(chen)(chen)結合起來(lai),使(shi)塵(chen)(chen)(chen)粒(li)(li)帶(dai)電(dian)(dian)(dian)(dian)(dian)(dian),帶(dai)電(dian)(dian)(dian)(dian)(dian)(dian)塵(chen)(chen)(chen)粒(li)(li)在(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)場力的(de)(de)(de)作(zuo)(zuo)用(yong)下(xia)趨向本(ben)設備(bei)陽(yang)極(ji)(正極(ji)、本(ben)設備(bei)采用(yong)負(fu)高壓制)和陰極(ji)(負(fu)極(ji)) , 釋放(fang)出電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)分別(bie)沉(chen)(chen)(chen)積(ji)在(zai)(zai)(zai)相(xiang)應的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)上,通(tong)(tong)過設備(bei)陰陽(yang)極(ji)振打系(xi)統的(de)(de)(de)振打,使(shi)沉(chen)(chen)(chen)積(ji)在(zai)(zai)(zai)陰陽(yang)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)上的(de)(de)(de)粉(fen)(fen)塵(chen)(chen)(chen)振落,進(jin)(jin)(jin)人集灰斗(dou) 通(tong)(tong)過排(pai)灰裝置放(fang)出,回收有物料,被)凈化(hua)的(de)(de)(de)氣(qi)(qi)體(ti)排(pai)入大氣(qi)(qi)。
工作原理(li)
靜電(dian)(dian)(dian)(dian)(dian)除塵(chen)器(qi)的(de)(de)(de)(de)工(gong)作原(yuan)理是利用高(gao)壓電(dian)(dian)(dian)(dian)(dian)場(chang)使煙(yan)(yan)氣(qi)發(fa)生電(dian)(dian)(dian)(dian)(dian)離(li),氣(qi)流(liu)中的(de)(de)(de)(de)粉塵(chen)荷(he)電(dian)(dian)(dian)(dian)(dian)在(zai)電(dian)(dian)(dian)(dian)(dian)場(chang)作用下與氣(qi)流(liu)分離(li)。負極(ji)由(you)不(bu)(bu)同斷面形狀的(de)(de)(de)(de)金屬導線(xian)制成,叫(jiao)放(fang)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)極(ji)。正極(ji)由(you)不(bu)(bu)同幾何形狀的(de)(de)(de)(de)金屬板制成,叫(jiao)集(ji)塵(chen)電(dian)(dian)(dian)(dian)(dian)極(ji)。靜電(dian)(dian)(dian)(dian)(dian)除塵(chen)器(qi)的(de)(de)(de)(de)性能受粉塵(chen)性質、設備構(gou)造和煙(yan)(yan)氣(qi)流(liu)速等三個因素的(de)(de)(de)(de)影(ying)響。粉塵(chen)的(de)(de)(de)(de)比(bi)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)是評價導電(dian)(dian)(dian)(dian)(dian)性的(de)(de)(de)(de)指(zhi)標,它對除塵(chen)效(xiao)率有直接的(de)(de)(de)(de)影(ying)響。比(bi)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)過低,塵(chen)粒(li)難以保(bao)持在(zai)集(ji)塵(chen)電(dian)(dian)(dian)(dian)(dian)極(ji)上,致使其重(zhong)返氣(qi)流(liu)。比(bi)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)過高(gao),到達集(ji)塵(chen)電(dian)(dian)(dian)(dian)(dian)極(ji)的(de)(de)(de)(de)塵(chen)粒(li)電(dian)(dian)(dian)(dian)(dian)荷(he)不(bu)(bu)易(yi)放(fang)出,在(zai)塵(chen)層(ceng)之間形成電(dian)(dian)(dian)(dian)(dian)壓梯度會產生局部擊穿和放(fang)電(dian)(dian)(dian)(dian)(dian)現象(xiang)。這(zhe)些情況都會造成除塵(chen)效(xiao)率下降。
電(dian)(dian)除塵器的(de)(de)基本原理(li)是利(li)用電(dian)(dian)力捕集(ji)煙氣(qi)(qi)中的(de)(de)粉塵,主(zhu)要(yao)包(bao)括以(yi)下(xia)四(si)個相互有關的(de)(de)物理(li)過程: (1) 氣(qi)(qi)體的(de)(de)電(dian)(dian)離。(2) 粉塵的(de)(de)荷電(dian)(dian)。(3) 荷電(dian)(dian)粉塵向(xiang)電(dian)(dian)極(ji)移動。(4) 荷電(dian)(dian)粉塵的(de)(de)捕集(ji)。