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(shi)靜(jing)電(dian)(dian)(dian)除塵器是以靜(jing)電(dian)(dian)(dian)凈化法來收捕廢(fei)氣(qi)(qi)中的(de)(de)(de)粉(fen)塵,它的(de)(de)(de)凈化工作上要是依靠電(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)和(he)沉(chen)(chen)淀兩(liang)個系統來完(wan)成(cheng)的(de)(de)(de),當含(han)塵氣(qi)(qi)體進(jin)人氣(qi)(qi)刺叭時,含(han)塵氣(qi)(qi)體受(shou)到氣(qi)(qi)流(liu)(liu)分(fen)布板(ban)以及折流(liu)(liu)板(ban)的(de)(de)(de)調整后(hou)(hou),使(shi)(shi)氣(qi)(qi)流(liu)(liu)能較均(jun)勻地(di)進(jin)人電(dian)(dian)(dian)場。在橫斷(duan)面(mian)擴大(da)的(de)(de)(de)作用下,氣(qi)(qi)流(liu)(liu)速度迅速降低,其中有些(xie)較重的(de)(de)(de)塵粒(li)便(bian)失去速度而(er)沉(chen)(chen)降下來。進(jin)人電(dian)(dian)(dian)場的(de)(de)(de)含(han)塵氣(qi)(qi)體由于電(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)通人高(gao)壓(ya)直(zhi)流(liu)(liu)電(dian)(dian)(dian),則在電(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)附近產(chan)生電(dian)(dian)(dian)暈(yun)現象(xiang),使(shi)(shi)氣(qi)(qi)體電(dian)(dian)(dian)離(li),電(dian)(dian)(dian)離(li)后(hou)(hou)的(de)(de)(de)氣(qi)(qi)體中存在大(da)量的(de)(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)人電(dian)(dian)(dian)場的(de)(de)(de)粉(fen)塵結合起來,使(shi)(shi)塵粒(li)帶(dai)電(dian)(dian)(dian),帶(dai)電(dian)(dian)(dian)塵粒(li)在電(dian)(dian)(dian)場力的(de)(de)(de)作用下趨(qu)向本設(she)備陽極(ji)(ji)(ji)(正極(ji)(ji)(ji)、本設(she)備采用負高(gao)壓(ya)制)和(he)陰極(ji)(ji)(ji)(負極(ji)(ji)(ji)) , 釋放出(chu)電(dian)(dian)(dian)子分(fen)別沉(chen)(chen)積(ji)在相應的(de)(de)(de)電(dian)(dian)(dian)極(ji)(ji)(ji)上,通過設(she)備陰陽極(ji)(ji)(ji)振(zhen)(zhen)打系統的(de)(de)(de)振(zhen)(zhen)打,使(shi)(shi)沉(chen)(chen)積(ji)在陰陽電(dian)(dian)(dian)極(ji)(ji)(ji)上的(de)(de)(de)粉(fen)塵振(zhen)(zhen)落,進(jin)人集灰斗 通過排(pai)灰裝置放出(chu),回收有物料,被(bei))凈化的(de)(de)(de)氣(qi)(qi)體排(pai)入大(da)氣(qi)(qi)。
工作原理
靜電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器的(de)(de)(de)(de)(de)工作(zuo)原理是(shi)(shi)利用高(gao)壓電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)使煙氣(qi)發生電(dian)(dian)(dian)(dian)(dian)(dian)離(li),氣(qi)流中的(de)(de)(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)荷(he)電(dian)(dian)(dian)(dian)(dian)(dian)在電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)作(zuo)用下與(yu)氣(qi)流分離(li)。負極由不同斷(duan)面形狀的(de)(de)(de)(de)(de)金屬(shu)導(dao)線制(zhi)成(cheng)(cheng),叫放電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)極。正極由不同幾何形狀的(de)(de)(de)(de)(de)金屬(shu)板制(zhi)成(cheng)(cheng),叫集塵(chen)(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)極。靜電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器的(de)(de)(de)(de)(de)性能受粉(fen)塵(chen)(chen)(chen)(chen)(chen)性質(zhi)、設備構(gou)造和(he)煙氣(qi)流速等(deng)三個因素的(de)(de)(de)(de)(de)影響(xiang)。粉(fen)塵(chen)(chen)(chen)(chen)(chen)的(de)(de)(de)(de)(de)比(bi)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)是(shi)(shi)評(ping)價(jia)導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性的(de)(de)(de)(de)(de)指標(biao),它(ta)對除(chu)塵(chen)(chen)(chen)(chen)(chen)效率有(you)直(zhi)接的(de)(de)(de)(de)(de)影響(xiang)。比(bi)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)過(guo)低,塵(chen)(chen)(chen)(chen)(chen)粒難以(yi)保持(chi)在集塵(chen)(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)極上,致使其重返氣(qi)流。比(bi)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)過(guo)高(gao),到(dao)達集塵(chen)(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)極的(de)(de)(de)(de)(de)塵(chen)(chen)(chen)(chen)(chen)粒電(dian)(dian)(dian)(dian)(dian)(dian)荷(he)不易放出,在塵(chen)(chen)(chen)(chen)(chen)層之間形成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)壓梯度會產生局部擊穿和(he)放電(dian)(dian)(dian)(dian)(dian)(dian)現象(xiang)。這些情況都會造成(cheng)(cheng)除(chu)塵(chen)(chen)(chen)(chen)(chen)效率下降。
電(dian)(dian)除塵(chen)器的(de)基本原理是利用電(dian)(dian)力(li)捕集煙氣中的(de)粉(fen)(fen)塵(chen),主要包(bao)括(kuo)以下四個(ge)相互(hu)有關的(de)物理過(guo)程: (1) 氣體的(de)電(dian)(dian)離。(2) 粉(fen)(fen)塵(chen)的(de)荷電(dian)(dian)。(3) 荷電(dian)(dian)粉(fen)(fen)塵(chen)向電(dian)(dian)極移動。(4) 荷電(dian)(dian)粉(fen)(fen)塵(chen)的(de)捕集。