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)除塵(chen)器是(shi)以靜電(dian)(dian)(dian)凈(jing)化(hua)法(fa)來收(shou)捕廢(fei)氣(qi)(qi)(qi)中的(de)(de)(de)(de)粉(fen)(fen)塵(chen),它的(de)(de)(de)(de)凈(jing)化(hua)工作(zuo)(zuo)上(shang)要(yao)是(shi)依靠(kao)電(dian)(dian)(dian)暈極(ji)(ji)(ji)(ji)(ji)和(he)沉(chen)淀兩個系統來完成的(de)(de)(de)(de),當含塵(chen)氣(qi)(qi)(qi)體進(jin)(jin)人(ren)(ren)氣(qi)(qi)(qi)刺叭(ba)時,含塵(chen)氣(qi)(qi)(qi)體受到氣(qi)(qi)(qi)流(liu)分(fen)布板以及折流(liu)板的(de)(de)(de)(de)調整后,使氣(qi)(qi)(qi)流(liu)能較均(jun)勻(yun)地進(jin)(jin)人(ren)(ren)電(dian)(dian)(dian)場(chang)(chang)。在(zai)(zai)橫斷面擴大(da)(da)的(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong)下,氣(qi)(qi)(qi)流(liu)速(su)度迅速(su)降(jiang)低,其中有些較重(zhong)的(de)(de)(de)(de)塵(chen)粒便失去速(su)度而沉(chen)降(jiang)下來。進(jin)(jin)人(ren)(ren)電(dian)(dian)(dian)場(chang)(chang)的(de)(de)(de)(de)含塵(chen)氣(qi)(qi)(qi)體由于電(dian)(dian)(dian)暈極(ji)(ji)(ji)(ji)(ji)通人(ren)(ren)高壓直流(liu)電(dian)(dian)(dian),則在(zai)(zai)電(dian)(dian)(dian)暈極(ji)(ji)(ji)(ji)(ji)附近產(chan)生電(dian)(dian)(dian)暈現象,使氣(qi)(qi)(qi)體電(dian)(dian)(dian)離(li),電(dian)(dian)(dian)離(li)后的(de)(de)(de)(de)氣(qi)(qi)(qi)體中存在(zai)(zai)大(da)(da)量(liang)的(de)(de)(de)(de)電(dian)(dian)(dian)子和(he)離(li)子,這些電(dian)(dian)(dian)子和(he)離(li)子與進(jin)(jin)人(ren)(ren)電(dian)(dian)(dian)場(chang)(chang)的(de)(de)(de)(de)粉(fen)(fen)塵(chen)結(jie)合起來,使塵(chen)粒帶(dai)電(dian)(dian)(dian),帶(dai)電(dian)(dian)(dian)塵(chen)粒在(zai)(zai)電(dian)(dian)(dian)場(chang)(chang)力(li)的(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong)下趨向本設備(bei)陽(yang)極(ji)(ji)(ji)(ji)(ji)(正極(ji)(ji)(ji)(ji)(ji)、本設備(bei)采用(yong)(yong)負(fu)高壓制)和(he)陰極(ji)(ji)(ji)(ji)(ji)(負(fu)極(ji)(ji)(ji)(ji)(ji)) , 釋放出電(dian)(dian)(dian)子分(fen)別沉(chen)積在(zai)(zai)相應的(de)(de)(de)(de)電(dian)(dian)(dian)極(ji)(ji)(ji)(ji)(ji)上(shang),通過設備(bei)陰陽(yang)極(ji)(ji)(ji)(ji)(ji)振(zhen)打(da)系統的(de)(de)(de)(de)振(zhen)打(da),使沉(chen)積在(zai)(zai)陰陽(yang)電(dian)(dian)(dian)極(ji)(ji)(ji)(ji)(ji)上(shang)的(de)(de)(de)(de)粉(fen)(fen)塵(chen)振(zhen)落,進(jin)(jin)人(ren)(ren)集灰(hui)(hui)斗 通過排灰(hui)(hui)裝置(zhi)放出,回收(shou)有物料,被)凈(jing)化(hua)的(de)(de)(de)(de)氣(qi)(qi)(qi)體排入大(da)(da)氣(qi)(qi)(qi)。
工作原理(li)
靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器的(de)工(gong)作原理是利用高壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場使煙(yan)氣(qi)(qi)發生(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)離,氣(qi)(qi)流中(zhong)的(de)粉塵(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場作用下與(yu)氣(qi)(qi)流分離。負極由(you)不(bu)同斷面形(xing)狀(zhuang)的(de)金屬(shu)導(dao)線制成,叫(jiao)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極。正極由(you)不(bu)同幾(ji)何形(xing)狀(zhuang)的(de)金屬(shu)板制成,叫(jiao)集塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極。靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器的(de)性(xing)能受(shou)粉塵(chen)(chen)(chen)(chen)性(xing)質、設備構造和(he)煙(yan)氣(qi)(qi)流速等(deng)三個因素(su)的(de)影響(xiang)。粉塵(chen)(chen)(chen)(chen)的(de)比電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)是評價導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)性(xing)的(de)指標,它對(dui)除(chu)(chu)塵(chen)(chen)(chen)(chen)效率(lv)有直(zhi)接的(de)影響(xiang)。比電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)過(guo)低,塵(chen)(chen)(chen)(chen)粒難以保(bao)持(chi)在集塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極上,致(zhi)使其重(zhong)返氣(qi)(qi)流。比電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)過(guo)高,到達集塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極的(de)塵(chen)(chen)(chen)(chen)粒電(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷不(bu)易放(fang)出,在塵(chen)(chen)(chen)(chen)層之間形(xing)成電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)梯(ti)度會產生(sheng)局部擊穿(chuan)和(he)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)現象。這些情況都會造成除(chu)(chu)塵(chen)(chen)(chen)(chen)效率(lv)下降(jiang)。
電(dian)(dian)(dian)(dian)除塵(chen)器的(de)基(ji)本原(yuan)理是利用電(dian)(dian)(dian)(dian)力捕(bu)集煙(yan)氣(qi)中(zhong)的(de)粉(fen)塵(chen),主(zhu)要包括以下四個相互有關的(de)物理過程: (1) 氣(qi)體的(de)電(dian)(dian)(dian)(dian)離。(2) 粉(fen)塵(chen)的(de)荷電(dian)(dian)(dian)(dian)。(3) 荷電(dian)(dian)(dian)(dian)粉(fen)塵(chen)向電(dian)(dian)(dian)(dian)極移動。(4) 荷電(dian)(dian)(dian)(dian)粉(fen)塵(chen)的(de)捕(bu)集。