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)(jing)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)器是以靜(jing)(jing)電(dian)(dian)(dian)(dian)凈(jing)化(hua)法(fa)來收捕廢氣(qi)(qi)(qi)中(zhong)的(de)(de)(de)(de)(de)(de)粉塵(chen)(chen)(chen)，它的(de)(de)(de)(de)(de)(de)凈(jing)化(hua)工作上(shang)要是依(yi)靠電(dian)(dian)(dian)(dian)暈極(ji)(ji)(ji)(ji)和沉(chen)淀兩個系統來完成的(de)(de)(de)(de)(de)(de)，當(dang)含塵(chen)(chen)(chen)氣(qi)(qi)(qi)體(ti)進(jin)(jin)人(ren)(ren)氣(qi)(qi)(qi)刺叭時(shi)，含塵(chen)(chen)(chen)氣(qi)(qi)(qi)體(ti)受到(dao)氣(qi)(qi)(qi)流(liu)分(fen)布板(ban)(ban)以及折流(liu)板(ban)(ban)的(de)(de)(de)(de)(de)(de)調整后，使(shi)氣(qi)(qi)(qi)流(liu)能(neng)較均勻地進(jin)(jin)人(ren)(ren)電(dian)(dian)(dian)(dian)場(chang)(chang)。在(zai)(zai)橫斷面擴大(da)的(de)(de)(de)(de)(de)(de)作用下，氣(qi)(qi)(qi)流(liu)速(su)度(du)迅速(su)降(jiang)低，其中(zhong)有(you)些較重的(de)(de)(de)(de)(de)(de)塵(chen)(chen)(chen)粒(li)便(bian)失(shi)去(qu)速(su)度(du)而沉(chen)降(jiang)下來。進(jin)(jin)人(ren)(ren)電(dian)(dian)(dian)(dian)場(chang)(chang)的(de)(de)(de)(de)(de)(de)含塵(chen)(chen)(chen)氣(qi)(qi)(qi)體(ti)由于(yu)電(dian)(dian)(dian)(dian)暈極(ji)(ji)(ji)(ji)通(tong)人(ren)(ren)高(gao)壓(ya)直流(liu)電(dian)(dian)(dian)(dian)，則在(zai)(zai)電(dian)(dian)(dian)(dian)暈極(ji)(ji)(ji)(ji)附近產生電(dian)(dian)(dian)(dian)暈現(xian)象，使(shi)氣(qi)(qi)(qi)體(ti)電(dian)(dian)(dian)(dian)離(li)，電(dian)(dian)(dian)(dian)離(li)后的(de)(de)(de)(de)(de)(de)氣(qi)(qi)(qi)體(ti)中(zhong)存在(zai)(zai)大(da)量的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)子和離(li)子，這些電(dian)(dian)(dian)(dian)子和離(li)子與進(jin)(jin)人(ren)(ren)電(dian)(dian)(dian)(dian)場(chang)(chang)的(de)(de)(de)(de)(de)(de)粉塵(chen)(chen)(chen)結合起來，使(shi)塵(chen)(chen)(chen)粒(li)帶電(dian)(dian)(dian)(dian)，帶電(dian)(dian)(dian)(dian)塵(chen)(chen)(chen)粒(li)在(zai)(zai)電(dian)(dian)(dian)(dian)場(chang)(chang)力的(de)(de)(de)(de)(de)(de)作用下趨向本(ben)設(she)備(bei)陽(yang)(yang)極(ji)(ji)(ji)(ji)(正(zheng)極(ji)(ji)(ji)(ji)、本(ben)設(she)備(bei)采用負高(gao)壓(ya)制)和陰極(ji)(ji)(ji)(ji)(負極(ji)(ji)(ji)(ji)) ， 釋放出電(dian)(dian)(dian)(dian)子分(fen)別沉(chen)積(ji)在(zai)(zai)相應的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)上(shang)，通(tong)過(guo)設(she)備(bei)陰陽(yang)(yang)極(ji)(ji)(ji)(ji)振打(da)系統的(de)(de)(de)(de)(de)(de)振打(da)，使(shi)沉(chen)積(ji)在(zai)(zai)陰陽(yang)(yang)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)上(shang)的(de)(de)(de)(de)(de)(de)粉塵(chen)(chen)(chen)振落，進(jin)(jin)人(ren)(ren)集灰(hui)斗(dou) 通(tong)過(guo)排(pai)灰(hui)裝置放出，回收有(you)物料(liao)，被)凈(jing)化(hua)的(de)(de)(de)(de)(de)(de)氣(qi)(qi)(qi)體(ti)排(pai)入(ru)大(da)氣(qi)(qi)(qi)。

工作(zuo)原理

靜電(dian)(dian)(dian)(dian)除塵(chen)(chen)器(qi)的(de)工作原理是利(li)用高壓(ya)電(dian)(dian)(dian)(dian)場使(shi)煙氣發生(sheng)電(dian)(dian)(dian)(dian)離，氣流(liu)中的(de)粉(fen)塵(chen)(chen)荷(he)電(dian)(dian)(dian)(dian)在電(dian)(dian)(dian)(dian)場作用下與氣流(liu)分離。負(fu)極(ji)由不同(tong)斷面形狀的(de)金屬導線制(zhi)成，叫放(fang)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)極(ji)。正極(ji)由不同(tong)幾(ji)何形狀的(de)金屬板制(zhi)成，叫集塵(chen)(chen)電(dian)(dian)(dian)(dian)極(ji)。靜電(dian)(dian)(dian)(dian)除塵(chen)(chen)器(qi)的(de)性(xing)能受粉(fen)塵(chen)(chen)性(xing)質(zhi)、設備(bei)構造和(he)煙氣流(liu)速等三(san)個因素的(de)影響。粉(fen)塵(chen)(chen)的(de)比電(dian)(dian)(dian)(dian)阻(zu)(zu)是評價導電(dian)(dian)(dian)(dian)性(xing)的(de)指標(biao)，它對(dui)除塵(chen)(chen)效率有直接(jie)的(de)影響。比電(dian)(dian)(dian)(dian)阻(zu)(zu)過低，塵(chen)(chen)粒(li)難(nan)以保持在集塵(chen)(chen)電(dian)(dian)(dian)(dian)極(ji)上，致使(shi)其重返氣流(liu)。比電(dian)(dian)(dian)(dian)阻(zu)(zu)過高，到達集塵(chen)(chen)電(dian)(dian)(dian)(dian)極(ji)的(de)塵(chen)(chen)粒(li)電(dian)(dian)(dian)(dian)荷(he)不易放(fang)出，在塵(chen)(chen)層之間形成電(dian)(dian)(dian)(dian)壓(ya)梯度會(hui)(hui)產生(sheng)局部擊穿和(he)放(fang)電(dian)(dian)(dian)(dian)現象。這些情況都會(hui)(hui)造成除塵(chen)(chen)效率下降。

電除塵(chen)器的(de)基本(ben)原理是利(li)用電力捕(bu)(bu)集(ji)煙氣中的(de)粉(fen)塵(chen)，主(zhu)要包括以(yi)下四(si)個相互(hu)有關的(de)物理過程: (1) 氣體(ti)的(de)電離。(2) 粉(fen)塵(chen)的(de)荷(he)電。(3) 荷(he)電粉(fen)塵(chen)向電極(ji)移動。(4) 荷(he)電粉(fen)塵(chen)的(de)捕(bu)(bu)集(ji)。