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)除塵(chen)(chen)(chen)(chen)器是(shi)以(yi)靜電(dian)(dian)(dian)(dian)凈(jing)化法(fa)來收(shou)捕(bu)廢氣(qi)(qi)中的(de)(de)(de)(de)粉(fen)(fen)塵(chen)(chen)(chen)(chen),它的(de)(de)(de)(de)凈(jing)化工作上(shang)(shang)要是(shi)依靠電(dian)(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)和沉淀兩(liang)個系統(tong)來完成的(de)(de)(de)(de),當含(han)塵(chen)(chen)(chen)(chen)氣(qi)(qi)體進人(ren)(ren)氣(qi)(qi)刺(ci)叭(ba)時(shi),含(han)塵(chen)(chen)(chen)(chen)氣(qi)(qi)體受到氣(qi)(qi)流(liu)分(fen)布板(ban)以(yi)及(ji)折流(liu)板(ban)的(de)(de)(de)(de)調整后,使(shi)氣(qi)(qi)流(liu)能較均勻地進人(ren)(ren)電(dian)(dian)(dian)(dian)場(chang)(chang)。在(zai)(zai)橫斷面(mian)擴大(da)的(de)(de)(de)(de)作用(yong)下(xia),氣(qi)(qi)流(liu)速(su)(su)度(du)迅(xun)速(su)(su)降低,其中有些(xie)較重的(de)(de)(de)(de)塵(chen)(chen)(chen)(chen)粒(li)便失(shi)去速(su)(su)度(du)而沉降下(xia)來。進人(ren)(ren)電(dian)(dian)(dian)(dian)場(chang)(chang)的(de)(de)(de)(de)含(han)塵(chen)(chen)(chen)(chen)氣(qi)(qi)體由于電(dian)(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)通人(ren)(ren)高壓直流(liu)電(dian)(dian)(dian)(dian),則(ze)在(zai)(zai)電(dian)(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)附近產(chan)生電(dian)(dian)(dian)(dian)暈(yun)現(xian)象,使(shi)氣(qi)(qi)體電(dian)(dian)(dian)(dian)離(li),電(dian)(dian)(dian)(dian)離(li)后的(de)(de)(de)(de)氣(qi)(qi)體中存在(zai)(zai)大(da)量的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)子和離(li)子,這些(xie)電(dian)(dian)(dian)(dian)子和離(li)子與(yu)進人(ren)(ren)電(dian)(dian)(dian)(dian)場(chang)(chang)的(de)(de)(de)(de)粉(fen)(fen)塵(chen)(chen)(chen)(chen)結合起來,使(shi)塵(chen)(chen)(chen)(chen)粒(li)帶電(dian)(dian)(dian)(dian),帶電(dian)(dian)(dian)(dian)塵(chen)(chen)(chen)(chen)粒(li)在(zai)(zai)電(dian)(dian)(dian)(dian)場(chang)(chang)力(li)的(de)(de)(de)(de)作用(yong)下(xia)趨(qu)向本(ben)設備陽極(ji)(ji)(ji)(正極(ji)(ji)(ji)、本(ben)設備采(cai)用(yong)負(fu)高壓制)和陰極(ji)(ji)(ji)(負(fu)極(ji)(ji)(ji)) , 釋放出電(dian)(dian)(dian)(dian)子分(fen)別沉積在(zai)(zai)相(xiang)應的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)上(shang)(shang),通過(guo)設備陰陽極(ji)(ji)(ji)振打系統(tong)的(de)(de)(de)(de)振打,使(shi)沉積在(zai)(zai)陰陽電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)上(shang)(shang)的(de)(de)(de)(de)粉(fen)(fen)塵(chen)(chen)(chen)(chen)振落,進人(ren)(ren)集灰(hui)斗 通過(guo)排灰(hui)裝置放出,回收(shou)有物料,被)凈(jing)化的(de)(de)(de)(de)氣(qi)(qi)體排入大(da)氣(qi)(qi)。
工(gong)作原理
靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)的工作原理(li)是利(li)用高(gao)壓電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)使煙(yan)氣發生電(dian)(dian)(dian)(dian)(dian)(dian)離,氣流(liu)(liu)中的粉塵(chen)(chen)(chen)荷(he)電(dian)(dian)(dian)(dian)(dian)(dian)在電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)作用下與氣流(liu)(liu)分離。負極(ji)(ji)由不(bu)同斷面形狀(zhuang)(zhuang)的金(jin)屬(shu)導(dao)線(xian)制成,叫(jiao)放電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)。正極(ji)(ji)由不(bu)同幾何形狀(zhuang)(zhuang)的金(jin)屬(shu)板制成,叫(jiao)集(ji)(ji)塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)。靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)的性(xing)能受粉塵(chen)(chen)(chen)性(xing)質(zhi)、設備構造和煙(yan)氣流(liu)(liu)速(su)等(deng)三個因(yin)素的影響(xiang)。粉塵(chen)(chen)(chen)的比(bi)電(dian)(dian)(dian)(dian)(dian)(dian)阻是評價導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)的指標,它對除(chu)(chu)塵(chen)(chen)(chen)效(xiao)率(lv)(lv)有直接的影響(xiang)。比(bi)電(dian)(dian)(dian)(dian)(dian)(dian)阻過(guo)低,塵(chen)(chen)(chen)粒難以保(bao)持在集(ji)(ji)塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)上,致使其重(zhong)返氣流(liu)(liu)。比(bi)電(dian)(dian)(dian)(dian)(dian)(dian)阻過(guo)高(gao),到(dao)達集(ji)(ji)塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)的塵(chen)(chen)(chen)粒電(dian)(dian)(dian)(dian)(dian)(dian)荷(he)不(bu)易放出(chu),在塵(chen)(chen)(chen)層之間形成電(dian)(dian)(dian)(dian)(dian)(dian)壓梯(ti)度(du)會(hui)產生局部擊穿(chuan)和放電(dian)(dian)(dian)(dian)(dian)(dian)現象。這(zhe)些情況都會(hui)造成除(chu)(chu)塵(chen)(chen)(chen)效(xiao)率(lv)(lv)下降。
電(dian)(dian)(dian)除塵(chen)器的(de)(de)(de)基本原理(li)是利用(yong)電(dian)(dian)(dian)力捕(bu)集煙氣中的(de)(de)(de)粉塵(chen),主(zhu)要包(bao)括以下四個相互有關的(de)(de)(de)物理(li)過(guo)程(cheng): (1) 氣體(ti)的(de)(de)(de)電(dian)(dian)(dian)離。(2) 粉塵(chen)的(de)(de)(de)荷電(dian)(dian)(dian)。(3) 荷電(dian)(dian)(dian)粉塵(chen)向(xiang)電(dian)(dian)(dian)極移動。(4) 荷電(dian)(dian)(dian)粉塵(chen)的(de)(de)(de)捕(bu)集。