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(jing)電(dian)(dian)(dian)除塵(chen)(chen)器(qi)是以靜(jing)電(dian)(dian)(dian)凈化法來收捕廢氣中(zhong)的(de)(de)(de)(de)(de)粉塵(chen)(chen),它的(de)(de)(de)(de)(de)凈化工作(zuo)上要是依靠電(dian)(dian)(dian)暈極(ji)(ji)(ji)和(he)沉淀兩個(ge)系(xi)統來完成的(de)(de)(de)(de)(de),當含(han)塵(chen)(chen)氣體進(jin)人(ren)氣刺叭時,含(han)塵(chen)(chen)氣體受到氣流(liu)分布板以及(ji)折流(liu)板的(de)(de)(de)(de)(de)調整后(hou),使氣流(liu)能較均(jun)勻地進(jin)人(ren)電(dian)(dian)(dian)場(chang)。在橫斷面擴大的(de)(de)(de)(de)(de)作(zuo)用(yong)下,氣流(liu)速度迅速降低(di),其中(zhong)有(you)些較重的(de)(de)(de)(de)(de)塵(chen)(chen)粒(li)便失去速度而沉降下來。進(jin)人(ren)電(dian)(dian)(dian)場(chang)的(de)(de)(de)(de)(de)含(han)塵(chen)(chen)氣體由于電(dian)(dian)(dian)暈極(ji)(ji)(ji)通(tong)人(ren)高壓直流(liu)電(dian)(dian)(dian),則在電(dian)(dian)(dian)暈極(ji)(ji)(ji)附近產生電(dian)(dian)(dian)暈現象,使氣體電(dian)(dian)(dian)離(li),電(dian)(dian)(dian)離(li)后(hou)的(de)(de)(de)(de)(de)氣體中(zhong)存(cun)在大量的(de)(de)(de)(de)(de)電(dian)(dian)(dian)子和(he)離(li)子,這(zhe)些電(dian)(dian)(dian)子和(he)離(li)子與進(jin)人(ren)電(dian)(dian)(dian)場(chang)的(de)(de)(de)(de)(de)粉塵(chen)(chen)結合起來,使塵(chen)(chen)粒(li)帶(dai)電(dian)(dian)(dian),帶(dai)電(dian)(dian)(dian)塵(chen)(chen)粒(li)在電(dian)(dian)(dian)場(chang)力的(de)(de)(de)(de)(de)作(zuo)用(yong)下趨向本設備陽極(ji)(ji)(ji)(正(zheng)極(ji)(ji)(ji)、本設備采用(yong)負(fu)高壓制)和(he)陰極(ji)(ji)(ji)(負(fu)極(ji)(ji)(ji)) , 釋放(fang)出電(dian)(dian)(dian)子分別(bie)沉積在相應的(de)(de)(de)(de)(de)電(dian)(dian)(dian)極(ji)(ji)(ji)上,通(tong)過(guo)設備陰陽極(ji)(ji)(ji)振打(da)系(xi)統的(de)(de)(de)(de)(de)振打(da),使沉積在陰陽電(dian)(dian)(dian)極(ji)(ji)(ji)上的(de)(de)(de)(de)(de)粉塵(chen)(chen)振落,進(jin)人(ren)集(ji)灰斗 通(tong)過(guo)排灰裝置放(fang)出,回收有(you)物(wu)料,被)凈化的(de)(de)(de)(de)(de)氣體排入大氣。
工作原理(li)
靜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)器的(de)(de)(de)工作原理(li)是(shi)利用(yong)高(gao)壓電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)場使煙氣(qi)發生電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li),氣(qi)流中的(de)(de)(de)粉塵(chen)(chen)荷(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)場作用(yong)下(xia)與(yu)氣(qi)流分離(li)。負極(ji)由不(bu)同(tong)斷面形(xing)狀的(de)(de)(de)金(jin)屬導線制成(cheng),叫(jiao)(jiao)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)。正極(ji)由不(bu)同(tong)幾何形(xing)狀的(de)(de)(de)金(jin)屬板制成(cheng),叫(jiao)(jiao)集塵(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)。靜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)器的(de)(de)(de)性(xing)能受粉塵(chen)(chen)性(xing)質、設備構(gou)造(zao)(zao)和(he)煙氣(qi)流速(su)等三個(ge)因素的(de)(de)(de)影響。粉塵(chen)(chen)的(de)(de)(de)比電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)是(shi)評價導電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)性(xing)的(de)(de)(de)指標,它對除塵(chen)(chen)效(xiao)率有直接的(de)(de)(de)影響。比電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)過低,塵(chen)(chen)粒(li)難(nan)以(yi)保持在(zai)集塵(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)上,致使其重返(fan)氣(qi)流。比電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)過高(gao),到(dao)達集塵(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)的(de)(de)(de)塵(chen)(chen)粒(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷(he)不(bu)易放(fang)出,在(zai)塵(chen)(chen)層之間形(xing)成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓梯度會產生局部擊穿和(he)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)現象。這些情(qing)況(kuang)都(dou)會造(zao)(zao)成(cheng)除塵(chen)(chen)效(xiao)率下(xia)降(jiang)。
電(dian)除塵(chen)器(qi)的(de)(de)基本原理(li)是利用電(dian)力捕集煙氣(qi)中的(de)(de)粉塵(chen),主要包括以下四(si)個(ge)相(xiang)互(hu)有(you)關的(de)(de)物(wu)理(li)過(guo)程: (1) 氣(qi)體的(de)(de)電(dian)離。(2) 粉塵(chen)的(de)(de)荷(he)電(dian)。(3) 荷(he)電(dian)粉塵(chen)向電(dian)極(ji)移動。(4) 荷(he)電(dian)粉塵(chen)的(de)(de)捕集。