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(wo)式(shi)靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)除塵(chen)器是以靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)凈化法來收捕廢氣(qi)中的(de)粉塵(chen),它的(de)凈化工作(zuo)上(shang)要是依靠電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)極(ji)(ji)(ji)(ji)和沉(chen)淀兩個系統來完成的(de),當含(han)塵(chen)氣(qi)體(ti)(ti)進(jin)(jin)人(ren)(ren)氣(qi)刺叭時(shi),含(han)塵(chen)氣(qi)體(ti)(ti)受到氣(qi)流(liu)分(fen)布(bu)板以及折(zhe)流(liu)板的(de)調整(zheng)后,使(shi)(shi)氣(qi)流(liu)能較均勻(yun)地進(jin)(jin)人(ren)(ren)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)(chang)。在橫斷(duan)面擴大(da)的(de)作(zuo)用(yong)下,氣(qi)流(liu)速度迅(xun)速降低,其中有些(xie)較重的(de)塵(chen)粒便失去速度而沉(chen)降下來。進(jin)(jin)人(ren)(ren)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)(chang)的(de)含(han)塵(chen)氣(qi)體(ti)(ti)由于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)極(ji)(ji)(ji)(ji)通人(ren)(ren)高壓直流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian),則在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)極(ji)(ji)(ji)(ji)附近產生(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)現象,使(shi)(shi)氣(qi)體(ti)(ti)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li),電(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li)后的(de)氣(qi)體(ti)(ti)中存在大(da)量(liang)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)和離(li)子(zi),這些(xie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)和離(li)子(zi)與(yu)進(jin)(jin)人(ren)(ren)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)(chang)的(de)粉塵(chen)結(jie)合起來,使(shi)(shi)塵(chen)粒帶(dai)(dai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian),帶(dai)(dai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)塵(chen)粒在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)(chang)力(li)的(de)作(zuo)用(yong)下趨向本設備陽極(ji)(ji)(ji)(ji)(正極(ji)(ji)(ji)(ji)、本設備采(cai)用(yong)負(fu)高壓制)和陰(yin)極(ji)(ji)(ji)(ji)(負(fu)極(ji)(ji)(ji)(ji)) , 釋放出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)分(fen)別沉(chen)積在相應的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)上(shang),通過(guo)設備陰(yin)陽極(ji)(ji)(ji)(ji)振打系統的(de)振打,使(shi)(shi)沉(chen)積在陰(yin)陽電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)上(shang)的(de)粉塵(chen)振落,進(jin)(jin)人(ren)(ren)集灰(hui)斗 通過(guo)排(pai)灰(hui)裝置(zhi)放出(chu),回收有物(wu)料,被)凈化的(de)氣(qi)體(ti)(ti)排(pai)入大(da)氣(qi)。
工作原理
靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器的(de)(de)(de)工作原理是(shi)利用高(gao)壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)使煙(yan)氣(qi)發生電(dian)(dian)(dian)(dian)(dian)(dian)(dian)離,氣(qi)流(liu)中的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)荷(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)作用下與氣(qi)流(liu)分離。負極(ji)由不同斷面(mian)形狀的(de)(de)(de)金屬(shu)導(dao)線(xian)制成(cheng)(cheng),叫放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)。正極(ji)由不同幾何(he)形狀的(de)(de)(de)金屬(shu)板(ban)制成(cheng)(cheng),叫集(ji)塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)。靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器的(de)(de)(de)性能(neng)受粉(fen)塵(chen)(chen)(chen)(chen)性質、設備構造(zao)和(he)煙(yan)氣(qi)流(liu)速等(deng)三個因素的(de)(de)(de)影響。粉(fen)塵(chen)(chen)(chen)(chen)的(de)(de)(de)比電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻是(shi)評價導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)性的(de)(de)(de)指標,它對(dui)除(chu)塵(chen)(chen)(chen)(chen)效率(lv)有直接的(de)(de)(de)影響。比電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻過(guo)(guo)低,塵(chen)(chen)(chen)(chen)粒難以保(bao)持在集(ji)塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)上,致使其(qi)重(zhong)返氣(qi)流(liu)。比電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻過(guo)(guo)高(gao),到達集(ji)塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)的(de)(de)(de)塵(chen)(chen)(chen)(chen)粒電(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷(he)不易放(fang)出(chu),在塵(chen)(chen)(chen)(chen)層之(zhi)間形成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)梯度會產(chan)生局部擊穿和(he)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)現(xian)象。這(zhe)些情況都(dou)會造(zao)成(cheng)(cheng)除(chu)塵(chen)(chen)(chen)(chen)效率(lv)下降。
電(dian)除塵器(qi)的(de)(de)(de)(de)基(ji)本原理是利用電(dian)力捕(bu)集煙氣中的(de)(de)(de)(de)粉塵,主(zhu)要包括以下(xia)四個相(xiang)互(hu)有關的(de)(de)(de)(de)物(wu)理過程: (1) 氣體(ti)的(de)(de)(de)(de)電(dian)離。(2) 粉塵的(de)(de)(de)(de)荷電(dian)。(3) 荷電(dian)粉塵向(xiang)電(dian)極移(yi)動。(4) 荷電(dian)粉塵的(de)(de)(de)(de)捕(bu)集。