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)除塵(chen)(chen)(chen)器是(shi)以靜電(dian)(dian)(dian)凈(jing)化(hua)法來收捕廢(fei)氣中(zhong)的(de)(de)(de)(de)粉(fen)塵(chen)(chen)(chen),它的(de)(de)(de)(de)凈(jing)化(hua)工作(zuo)上(shang)(shang)要是(shi)依靠電(dian)(dian)(dian)暈(yun)極(ji)和(he)沉(chen)淀兩個(ge)系統(tong)來完成的(de)(de)(de)(de),當含塵(chen)(chen)(chen)氣體(ti)(ti)進人(ren)氣刺叭時,含塵(chen)(chen)(chen)氣體(ti)(ti)受(shou)到氣流(liu)(liu)(liu)分(fen)布板以及折流(liu)(liu)(liu)板的(de)(de)(de)(de)調整后,使氣流(liu)(liu)(liu)能較均勻地進人(ren)電(dian)(dian)(dian)場。在(zai)橫斷面擴大(da)的(de)(de)(de)(de)作(zuo)用下(xia),氣流(liu)(liu)(liu)速度迅速降(jiang)低(di),其中(zhong)有些(xie)較重的(de)(de)(de)(de)塵(chen)(chen)(chen)粒(li)便失去速度而沉(chen)降(jiang)下(xia)來。進人(ren)電(dian)(dian)(dian)場的(de)(de)(de)(de)含塵(chen)(chen)(chen)氣體(ti)(ti)由于電(dian)(dian)(dian)暈(yun)極(ji)通人(ren)高(gao)壓直流(liu)(liu)(liu)電(dian)(dian)(dian),則(ze)在(zai)電(dian)(dian)(dian)暈(yun)極(ji)附(fu)近產生電(dian)(dian)(dian)暈(yun)現象(xiang),使氣體(ti)(ti)電(dian)(dian)(dian)離(li),電(dian)(dian)(dian)離(li)后的(de)(de)(de)(de)氣體(ti)(ti)中(zhong)存在(zai)大(da)量的(de)(de)(de)(de)電(dian)(dian)(dian)子(zi)和(he)離(li)子(zi),這(zhe)些(xie)電(dian)(dian)(dian)子(zi)和(he)離(li)子(zi)與(yu)進人(ren)電(dian)(dian)(dian)場的(de)(de)(de)(de)粉(fen)塵(chen)(chen)(chen)結合起來,使塵(chen)(chen)(chen)粒(li)帶電(dian)(dian)(dian),帶電(dian)(dian)(dian)塵(chen)(chen)(chen)粒(li)在(zai)電(dian)(dian)(dian)場力(li)的(de)(de)(de)(de)作(zuo)用下(xia)趨向本設(she)備陽極(ji)(正(zheng)極(ji)、本設(she)備采用負高(gao)壓制(zhi))和(he)陰極(ji)(負極(ji)) , 釋放出電(dian)(dian)(dian)子(zi)分(fen)別沉(chen)積在(zai)相應的(de)(de)(de)(de)電(dian)(dian)(dian)極(ji)上(shang)(shang),通過設(she)備陰陽極(ji)振(zhen)打系統(tong)的(de)(de)(de)(de)振(zhen)打,使沉(chen)積在(zai)陰陽電(dian)(dian)(dian)極(ji)上(shang)(shang)的(de)(de)(de)(de)粉(fen)塵(chen)(chen)(chen)振(zhen)落(luo),進人(ren)集灰(hui)(hui)斗 通過排灰(hui)(hui)裝置放出,回收有物料,被(bei))凈(jing)化(hua)的(de)(de)(de)(de)氣體(ti)(ti)排入(ru)大(da)氣。
工作原理
靜(jing)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)器的(de)(de)(de)(de)工作原理(li)是利用高(gao)壓(ya)電(dian)(dian)(dian)(dian)場使(shi)煙(yan)氣發生電(dian)(dian)(dian)(dian)離,氣流(liu)中的(de)(de)(de)(de)粉(fen)塵(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)在(zai)電(dian)(dian)(dian)(dian)場作用下(xia)(xia)與氣流(liu)分離。負極(ji)(ji)(ji)由不(bu)同(tong)斷面形(xing)(xing)狀的(de)(de)(de)(de)金屬導(dao)線制成,叫放電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)。正極(ji)(ji)(ji)由不(bu)同(tong)幾何(he)形(xing)(xing)狀的(de)(de)(de)(de)金屬板(ban)制成,叫集(ji)塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)。靜(jing)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)器的(de)(de)(de)(de)性能(neng)受粉(fen)塵(chen)(chen)(chen)性質、設備構造和(he)煙(yan)氣流(liu)速等三個(ge)因(yin)素的(de)(de)(de)(de)影響。粉(fen)塵(chen)(chen)(chen)的(de)(de)(de)(de)比(bi)電(dian)(dian)(dian)(dian)阻是評價導(dao)電(dian)(dian)(dian)(dian)性的(de)(de)(de)(de)指(zhi)標,它對除塵(chen)(chen)(chen)效率(lv)有直接的(de)(de)(de)(de)影響。比(bi)電(dian)(dian)(dian)(dian)阻過(guo)低(di),塵(chen)(chen)(chen)粒難以保(bao)持(chi)在(zai)集(ji)塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)上,致使(shi)其重返氣流(liu)。比(bi)電(dian)(dian)(dian)(dian)阻過(guo)高(gao),到達(da)集(ji)塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)的(de)(de)(de)(de)塵(chen)(chen)(chen)粒電(dian)(dian)(dian)(dian)荷不(bu)易放出(chu),在(zai)塵(chen)(chen)(chen)層之間形(xing)(xing)成電(dian)(dian)(dian)(dian)壓(ya)梯(ti)度會產生局(ju)部(bu)擊(ji)穿和(he)放電(dian)(dian)(dian)(dian)現象。這些情況都會造成除塵(chen)(chen)(chen)效率(lv)下(xia)(xia)降。
電(dian)除塵器(qi)的(de)基本原理是利用電(dian)力捕(bu)集煙(yan)氣(qi)中的(de)粉(fen)塵,主要包括以(yi)下四個相(xiang)互有關的(de)物理過程: (1) 氣(qi)體的(de)電(dian)離。(2) 粉(fen)塵的(de)荷電(dian)。(3) 荷電(dian)粉(fen)塵向電(dian)極移動(dong)。(4) 荷電(dian)粉(fen)塵的(de)捕(bu)集。