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(shi)靜電(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器是(shi)以靜電(dian)(dian)(dian)凈(jing)(jing)化法來(lai)(lai)收捕廢氣(qi)(qi)中的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen),它的(de)(de)(de)凈(jing)(jing)化工(gong)作上(shang)要是(shi)依靠(kao)電(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)和沉(chen)淀兩個系統來(lai)(lai)完成的(de)(de)(de),當含(han)塵(chen)(chen)(chen)(chen)(chen)氣(qi)(qi)體進人(ren)(ren)氣(qi)(qi)刺叭時,含(han)塵(chen)(chen)(chen)(chen)(chen)氣(qi)(qi)體受(shou)到氣(qi)(qi)流(liu)(liu)分布板(ban)以及折流(liu)(liu)板(ban)的(de)(de)(de)調整后(hou),使氣(qi)(qi)流(liu)(liu)能較(jiao)均勻(yun)地進人(ren)(ren)電(dian)(dian)(dian)場。在(zai)橫斷面擴大的(de)(de)(de)作用(yong)(yong)(yong)下,氣(qi)(qi)流(liu)(liu)速(su)度迅速(su)降低,其中有(you)些較(jiao)重的(de)(de)(de)塵(chen)(chen)(chen)(chen)(chen)粒便失(shi)去速(su)度而沉(chen)降下來(lai)(lai)。進人(ren)(ren)電(dian)(dian)(dian)場的(de)(de)(de)含(han)塵(chen)(chen)(chen)(chen)(chen)氣(qi)(qi)體由(you)于(yu)電(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)通(tong)人(ren)(ren)高壓直流(liu)(liu)電(dian)(dian)(dian),則在(zai)電(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)附(fu)近產(chan)生(sheng)電(dian)(dian)(dian)暈(yun)現象,使氣(qi)(qi)體電(dian)(dian)(dian)離(li),電(dian)(dian)(dian)離(li)后(hou)的(de)(de)(de)氣(qi)(qi)體中存在(zai)大量的(de)(de)(de)電(dian)(dian)(dian)子(zi)(zi)和離(li)子(zi)(zi),這些電(dian)(dian)(dian)子(zi)(zi)和離(li)子(zi)(zi)與(yu)進人(ren)(ren)電(dian)(dian)(dian)場的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)結合起(qi)來(lai)(lai),使塵(chen)(chen)(chen)(chen)(chen)粒帶電(dian)(dian)(dian),帶電(dian)(dian)(dian)塵(chen)(chen)(chen)(chen)(chen)粒在(zai)電(dian)(dian)(dian)場力的(de)(de)(de)作用(yong)(yong)(yong)下趨向本設備(bei)陽(yang)(yang)極(ji)(ji)(ji)(正極(ji)(ji)(ji)、本設備(bei)采用(yong)(yong)(yong)負高壓制)和陰極(ji)(ji)(ji)(負極(ji)(ji)(ji)) , 釋放出電(dian)(dian)(dian)子(zi)(zi)分別沉(chen)積(ji)在(zai)相應的(de)(de)(de)電(dian)(dian)(dian)極(ji)(ji)(ji)上(shang),通(tong)過設備(bei)陰陽(yang)(yang)極(ji)(ji)(ji)振打系統的(de)(de)(de)振打,使沉(chen)積(ji)在(zai)陰陽(yang)(yang)電(dian)(dian)(dian)極(ji)(ji)(ji)上(shang)的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)振落,進人(ren)(ren)集灰(hui)斗 通(tong)過排灰(hui)裝(zhuang)置放出,回收有(you)物料,被)凈(jing)(jing)化的(de)(de)(de)氣(qi)(qi)體排入大氣(qi)(qi)。
工作原理(li)
靜(jing)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器的(de)(de)(de)(de)工作(zuo)原理是利用(yong)(yong)高(gao)壓電(dian)(dian)(dian)(dian)(dian)場使(shi)煙(yan)氣發生電(dian)(dian)(dian)(dian)(dian)離,氣流中的(de)(de)(de)(de)粉塵(chen)(chen)(chen)荷(he)電(dian)(dian)(dian)(dian)(dian)在(zai)電(dian)(dian)(dian)(dian)(dian)場作(zuo)用(yong)(yong)下(xia)與(yu)氣流分離。負極(ji)(ji)(ji)(ji)由(you)不(bu)同斷面形(xing)狀的(de)(de)(de)(de)金屬導線制成,叫(jiao)放電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)。正(zheng)極(ji)(ji)(ji)(ji)由(you)不(bu)同幾何形(xing)狀的(de)(de)(de)(de)金屬板(ban)制成,叫(jiao)集塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)。靜(jing)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器的(de)(de)(de)(de)性能受粉塵(chen)(chen)(chen)性質(zhi)、設備構造(zao)和(he)煙(yan)氣流速等三個因(yin)素的(de)(de)(de)(de)影響。粉塵(chen)(chen)(chen)的(de)(de)(de)(de)比(bi)電(dian)(dian)(dian)(dian)(dian)阻是評價導電(dian)(dian)(dian)(dian)(dian)性的(de)(de)(de)(de)指標,它對除(chu)塵(chen)(chen)(chen)效(xiao)(xiao)率有直接的(de)(de)(de)(de)影響。比(bi)電(dian)(dian)(dian)(dian)(dian)阻過低,塵(chen)(chen)(chen)粒難以保持在(zai)集塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)上(shang),致使(shi)其重返氣流。比(bi)電(dian)(dian)(dian)(dian)(dian)阻過高(gao),到達集塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)的(de)(de)(de)(de)塵(chen)(chen)(chen)粒電(dian)(dian)(dian)(dian)(dian)荷(he)不(bu)易放出,在(zai)塵(chen)(chen)(chen)層之間形(xing)成電(dian)(dian)(dian)(dian)(dian)壓梯度會(hui)產生局(ju)部(bu)擊穿和(he)放電(dian)(dian)(dian)(dian)(dian)現象。這些情(qing)況都會(hui)造(zao)成除(chu)塵(chen)(chen)(chen)效(xiao)(xiao)率下(xia)降。
電(dian)(dian)除塵(chen)(chen)器的(de)基本原理是利用電(dian)(dian)力捕集煙(yan)氣中(zhong)的(de)粉塵(chen)(chen),主要包括以下四個相互有關的(de)物(wu)理過程: (1) 氣體(ti)的(de)電(dian)(dian)離。(2) 粉塵(chen)(chen)的(de)荷(he)(he)電(dian)(dian)。(3) 荷(he)(he)電(dian)(dian)粉塵(chen)(chen)向電(dian)(dian)極(ji)移(yi)動。(4) 荷(he)(he)電(dian)(dian)粉塵(chen)(chen)的(de)捕集。