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)器是以(yi)靜電(dian)(dian)(dian)凈(jing)化(hua)法(fa)來收(shou)捕廢(fei)氣(qi)(qi)中(zhong)的(de)(de)(de)粉塵(chen),它的(de)(de)(de)凈(jing)化(hua)工作(zuo)上(shang)要是依靠電(dian)(dian)(dian)暈極(ji)(ji)和(he)(he)沉淀兩個(ge)系統(tong)來完成的(de)(de)(de),當含塵(chen)氣(qi)(qi)體進(jin)人(ren)氣(qi)(qi)刺叭時(shi),含塵(chen)氣(qi)(qi)體受到氣(qi)(qi)流(liu)分布板以(yi)及(ji)折流(liu)板的(de)(de)(de)調整后,使氣(qi)(qi)流(liu)能較均(jun)勻地進(jin)人(ren)電(dian)(dian)(dian)場(chang)(chang)。在(zai)(zai)橫斷(duan)面擴(kuo)大(da)的(de)(de)(de)作(zuo)用(yong)下,氣(qi)(qi)流(liu)速(su)(su)度迅速(su)(su)降低,其中(zhong)有些(xie)較重的(de)(de)(de)塵(chen)粒便失去速(su)(su)度而沉降下來。進(jin)人(ren)電(dian)(dian)(dian)場(chang)(chang)的(de)(de)(de)含塵(chen)氣(qi)(qi)體由于電(dian)(dian)(dian)暈極(ji)(ji)通(tong)人(ren)高壓(ya)(ya)直流(liu)電(dian)(dian)(dian),則在(zai)(zai)電(dian)(dian)(dian)暈極(ji)(ji)附近產生電(dian)(dian)(dian)暈現(xian)象(xiang),使氣(qi)(qi)體電(dian)(dian)(dian)離(li)(li),電(dian)(dian)(dian)離(li)(li)后的(de)(de)(de)氣(qi)(qi)體中(zhong)存(cun)在(zai)(zai)大(da)量(liang)的(de)(de)(de)電(dian)(dian)(dian)子(zi)(zi)和(he)(he)離(li)(li)子(zi)(zi),這些(xie)電(dian)(dian)(dian)子(zi)(zi)和(he)(he)離(li)(li)子(zi)(zi)與進(jin)人(ren)電(dian)(dian)(dian)場(chang)(chang)的(de)(de)(de)粉塵(chen)結合起來,使塵(chen)粒帶電(dian)(dian)(dian),帶電(dian)(dian)(dian)塵(chen)粒在(zai)(zai)電(dian)(dian)(dian)場(chang)(chang)力(li)的(de)(de)(de)作(zuo)用(yong)下趨向本(ben)設備(bei)陽(yang)極(ji)(ji)(正極(ji)(ji)、本(ben)設備(bei)采用(yong)負高壓(ya)(ya)制)和(he)(he)陰極(ji)(ji)(負極(ji)(ji)) , 釋放出電(dian)(dian)(dian)子(zi)(zi)分別沉積(ji)在(zai)(zai)相應的(de)(de)(de)電(dian)(dian)(dian)極(ji)(ji)上(shang),通(tong)過設備(bei)陰陽(yang)極(ji)(ji)振(zhen)打系統(tong)的(de)(de)(de)振(zhen)打,使沉積(ji)在(zai)(zai)陰陽(yang)電(dian)(dian)(dian)極(ji)(ji)上(shang)的(de)(de)(de)粉塵(chen)振(zhen)落,進(jin)人(ren)集(ji)灰斗 通(tong)過排(pai)灰裝(zhuang)置放出,回收(shou)有物料,被(bei))凈(jing)化(hua)的(de)(de)(de)氣(qi)(qi)體排(pai)入大(da)氣(qi)(qi)。
工作原理
靜(jing)(jing)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)的(de)工作原理是利用(yong)高(gao)壓電(dian)(dian)(dian)(dian)場使煙(yan)氣(qi)(qi)發生電(dian)(dian)(dian)(dian)離,氣(qi)(qi)流(liu)(liu)(liu)中(zhong)的(de)粉塵(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)在電(dian)(dian)(dian)(dian)場作用(yong)下(xia)與氣(qi)(qi)流(liu)(liu)(liu)分離。負極由不(bu)(bu)同(tong)斷面(mian)形(xing)狀的(de)金屬導(dao)線制成,叫放(fang)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)極。正(zheng)極由不(bu)(bu)同(tong)幾(ji)何形(xing)狀的(de)金屬板(ban)制成,叫集塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)極。靜(jing)(jing)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)的(de)性能(neng)受粉塵(chen)(chen)(chen)性質、設備構造(zao)和煙(yan)氣(qi)(qi)流(liu)(liu)(liu)速(su)等三個因素的(de)影(ying)響(xiang)(xiang)。粉塵(chen)(chen)(chen)的(de)比電(dian)(dian)(dian)(dian)阻(zu)是評價導(dao)電(dian)(dian)(dian)(dian)性的(de)指標,它(ta)對除塵(chen)(chen)(chen)效(xiao)率有直接的(de)影(ying)響(xiang)(xiang)。比電(dian)(dian)(dian)(dian)阻(zu)過低(di),塵(chen)(chen)(chen)粒難(nan)以(yi)保(bao)持在集塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)極上,致使其重返氣(qi)(qi)流(liu)(liu)(liu)。比電(dian)(dian)(dian)(dian)阻(zu)過高(gao),到達集塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)極的(de)塵(chen)(chen)(chen)粒電(dian)(dian)(dian)(dian)荷不(bu)(bu)易放(fang)出,在塵(chen)(chen)(chen)層之間形(xing)成電(dian)(dian)(dian)(dian)壓梯度會產生局部擊穿和放(fang)電(dian)(dian)(dian)(dian)現象。這些情況都會造(zao)成除塵(chen)(chen)(chen)效(xiao)率下(xia)降。
電除塵(chen)(chen)器(qi)的(de)(de)基(ji)本原理是利用電力捕(bu)集煙氣(qi)中的(de)(de)粉(fen)(fen)(fen)塵(chen)(chen),主要包括以下四個相(xiang)互(hu)有關的(de)(de)物(wu)理過程: (1) 氣(qi)體(ti)的(de)(de)電離。(2) 粉(fen)(fen)(fen)塵(chen)(chen)的(de)(de)荷電。(3) 荷電粉(fen)(fen)(fen)塵(chen)(chen)向電極移動。(4) 荷電粉(fen)(fen)(fen)塵(chen)(chen)的(de)(de)捕(bu)集。