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)除塵(chen)器是以靜電(dian)(dian)(dian)(dian)(dian)(dian)凈(jing)化法(fa)來(lai)收捕廢氣(qi)中(zhong)(zhong)的(de)(de)(de)粉(fen)塵(chen),它的(de)(de)(de)凈(jing)化工作(zuo)上要是依靠電(dian)(dian)(dian)(dian)(dian)(dian)暈極(ji)(ji)(ji)(ji)和沉(chen)淀兩個系統來(lai)完成的(de)(de)(de),當含塵(chen)氣(qi)體進(jin)(jin)(jin)人(ren)氣(qi)刺叭時,含塵(chen)氣(qi)體受到(dao)氣(qi)流分布板以及(ji)折流板的(de)(de)(de)調整后(hou)(hou),使氣(qi)流能較均勻地進(jin)(jin)(jin)人(ren)電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)。在(zai)(zai)(zai)橫斷(duan)面(mian)擴大(da)的(de)(de)(de)作(zuo)用下,氣(qi)流速度(du)迅速降(jiang)低(di),其中(zhong)(zhong)有些較重的(de)(de)(de)塵(chen)粒便失去速度(du)而沉(chen)降(jiang)下來(lai)。進(jin)(jin)(jin)人(ren)電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)的(de)(de)(de)含塵(chen)氣(qi)體由于電(dian)(dian)(dian)(dian)(dian)(dian)暈極(ji)(ji)(ji)(ji)通人(ren)高(gao)壓直流電(dian)(dian)(dian)(dian)(dian)(dian),則在(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)暈極(ji)(ji)(ji)(ji)附近(jin)產生電(dian)(dian)(dian)(dian)(dian)(dian)暈現象,使氣(qi)體電(dian)(dian)(dian)(dian)(dian)(dian)離,電(dian)(dian)(dian)(dian)(dian)(dian)離后(hou)(hou)的(de)(de)(de)氣(qi)體中(zhong)(zhong)存(cun)在(zai)(zai)(zai)大(da)量的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)和離子(zi)(zi),這些電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)和離子(zi)(zi)與進(jin)(jin)(jin)人(ren)電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)的(de)(de)(de)粉(fen)塵(chen)結合起來(lai),使塵(chen)粒帶(dai)電(dian)(dian)(dian)(dian)(dian)(dian),帶(dai)電(dian)(dian)(dian)(dian)(dian)(dian)塵(chen)粒在(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)力的(de)(de)(de)作(zuo)用下趨向本設(she)(she)備陽(yang)(yang)極(ji)(ji)(ji)(ji)(正極(ji)(ji)(ji)(ji)、本設(she)(she)備采用負高(gao)壓制)和陰極(ji)(ji)(ji)(ji)(負極(ji)(ji)(ji)(ji)) , 釋放出電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)分別沉(chen)積(ji)在(zai)(zai)(zai)相(xiang)應的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)上,通過(guo)(guo)設(she)(she)備陰陽(yang)(yang)極(ji)(ji)(ji)(ji)振打系統的(de)(de)(de)振打,使沉(chen)積(ji)在(zai)(zai)(zai)陰陽(yang)(yang)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)上的(de)(de)(de)粉(fen)塵(chen)振落,進(jin)(jin)(jin)人(ren)集灰斗 通過(guo)(guo)排(pai)灰裝置(zhi)放出,回收有物料(liao),被)凈(jing)化的(de)(de)(de)氣(qi)體排(pai)入大(da)氣(qi)。
工作原理
靜(jing)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器的(de)工作(zuo)原理是利用高壓電(dian)(dian)(dian)(dian)場(chang)使(shi)煙氣發生電(dian)(dian)(dian)(dian)離,氣流(liu)中的(de)粉(fen)塵(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)在電(dian)(dian)(dian)(dian)場(chang)作(zuo)用下與氣流(liu)分離。負極由(you)不(bu)同斷(duan)面形狀(zhuang)的(de)金屬(shu)導線制成,叫(jiao)放電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)極。正(zheng)極由(you)不(bu)同幾何形狀(zhuang)的(de)金屬(shu)板制成,叫(jiao)集塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)極。靜(jing)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器的(de)性(xing)能(neng)受(shou)粉(fen)塵(chen)(chen)(chen)(chen)性(xing)質、設備(bei)構造和煙氣流(liu)速等三(san)個因(yin)素的(de)影(ying)(ying)響。粉(fen)塵(chen)(chen)(chen)(chen)的(de)比(bi)電(dian)(dian)(dian)(dian)阻(zu)是評價導電(dian)(dian)(dian)(dian)性(xing)的(de)指標,它對除(chu)塵(chen)(chen)(chen)(chen)效率有直接的(de)影(ying)(ying)響。比(bi)電(dian)(dian)(dian)(dian)阻(zu)過低(di),塵(chen)(chen)(chen)(chen)粒難以保持在集塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)極上,致使(shi)其重(zhong)返氣流(liu)。比(bi)電(dian)(dian)(dian)(dian)阻(zu)過高,到(dao)達(da)集塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)極的(de)塵(chen)(chen)(chen)(chen)粒電(dian)(dian)(dian)(dian)荷不(bu)易放出,在塵(chen)(chen)(chen)(chen)層之間形成電(dian)(dian)(dian)(dian)壓梯(ti)度會(hui)產生局部擊穿和放電(dian)(dian)(dian)(dian)現象。這些情況(kuang)都會(hui)造成除(chu)塵(chen)(chen)(chen)(chen)效率下降(jiang)。
電(dian)除塵(chen)(chen)器的(de)(de)基本原理是(shi)利用電(dian)力捕集煙氣(qi)中(zhong)的(de)(de)粉(fen)塵(chen)(chen),主(zhu)要(yao)包(bao)括以(yi)下(xia)四個相互有(you)關的(de)(de)物理過程: (1) 氣(qi)體的(de)(de)電(dian)離(li)。(2) 粉(fen)塵(chen)(chen)的(de)(de)荷電(dian)。(3) 荷電(dian)粉(fen)塵(chen)(chen)向電(dian)極移動。(4) 荷電(dian)粉(fen)塵(chen)(chen)的(de)(de)捕集。