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)除(chu)塵(chen)(chen)器是(shi)以靜電(dian)(dian)凈(jing)化(hua)法來(lai)(lai)收(shou)捕廢氣(qi)(qi)中的(de)(de)粉塵(chen)(chen)，它的(de)(de)凈(jing)化(hua)工作(zuo)上(shang)要是(shi)依靠電(dian)(dian)暈極(ji)(ji)和(he)沉淀兩個系統來(lai)(lai)完成的(de)(de)，當(dang)含(han)塵(chen)(chen)氣(qi)(qi)體(ti)(ti)進(jin)人(ren)氣(qi)(qi)刺叭時，含(han)塵(chen)(chen)氣(qi)(qi)體(ti)(ti)受到氣(qi)(qi)流分布板(ban)以及折(zhe)流板(ban)的(de)(de)調(diao)整后(hou)，使(shi)氣(qi)(qi)流能較均勻地進(jin)人(ren)電(dian)(dian)場。在橫斷面擴大的(de)(de)作(zuo)用下(xia)，氣(qi)(qi)流速(su)度迅(xun)速(su)降低，其(qi)中有些(xie)較重的(de)(de)塵(chen)(chen)粒便失去速(su)度而沉降下(xia)來(lai)(lai)。進(jin)人(ren)電(dian)(dian)場的(de)(de)含(han)塵(chen)(chen)氣(qi)(qi)體(ti)(ti)由于電(dian)(dian)暈極(ji)(ji)通人(ren)高壓(ya)直(zhi)流電(dian)(dian)，則在電(dian)(dian)暈極(ji)(ji)附(fu)近產生電(dian)(dian)暈現象(xiang)，使(shi)氣(qi)(qi)體(ti)(ti)電(dian)(dian)離，電(dian)(dian)離后(hou)的(de)(de)氣(qi)(qi)體(ti)(ti)中存在大量的(de)(de)電(dian)(dian)子(zi)和(he)離子(zi)，這些(xie)電(dian)(dian)子(zi)和(he)離子(zi)與進(jin)人(ren)電(dian)(dian)場的(de)(de)粉塵(chen)(chen)結合起來(lai)(lai)，使(shi)塵(chen)(chen)粒帶電(dian)(dian)，帶電(dian)(dian)塵(chen)(chen)粒在電(dian)(dian)場力的(de)(de)作(zuo)用下(xia)趨向本設(she)備(bei)陽(yang)極(ji)(ji)(正(zheng)極(ji)(ji)、本設(she)備(bei)采用負高壓(ya)制)和(he)陰極(ji)(ji)(負極(ji)(ji)) ， 釋放出電(dian)(dian)子(zi)分別沉積在相應(ying)的(de)(de)電(dian)(dian)極(ji)(ji)上(shang)，通過設(she)備(bei)陰陽(yang)極(ji)(ji)振打(da)系統的(de)(de)振打(da)，使(shi)沉積在陰陽(yang)電(dian)(dian)極(ji)(ji)上(shang)的(de)(de)粉塵(chen)(chen)振落(luo)，進(jin)人(ren)集灰斗(dou) 通過排(pai)灰裝置放出，回收(shou)有物料(liao)，被)凈(jing)化(hua)的(de)(de)氣(qi)(qi)體(ti)(ti)排(pai)入大氣(qi)(qi)。

工(gong)作原理

靜電(dian)(dian)除塵(chen)(chen)器(qi)的工(gong)作(zuo)原理(li)是利(li)用高壓(ya)(ya)電(dian)(dian)場使煙氣(qi)發生電(dian)(dian)離，氣(qi)流中(zhong)的粉塵(chen)(chen)荷電(dian)(dian)在電(dian)(dian)場作(zuo)用下(xia)與氣(qi)流分離。負極(ji)(ji)由不同(tong)斷面形狀的金(jin)屬導線(xian)制成(cheng)(cheng)，叫(jiao)放電(dian)(dian)電(dian)(dian)極(ji)(ji)。正極(ji)(ji)由不同(tong)幾何(he)形狀的金(jin)屬板(ban)制成(cheng)(cheng)，叫(jiao)集塵(chen)(chen)電(dian)(dian)極(ji)(ji)。靜電(dian)(dian)除塵(chen)(chen)器(qi)的性能受粉塵(chen)(chen)性質、設備構造和(he)煙氣(qi)流速等三(san)個因素的影響。粉塵(chen)(chen)的比(bi)電(dian)(dian)阻是評(ping)價導電(dian)(dian)性的指標(biao)，它對除塵(chen)(chen)效率有直接的影響。比(bi)電(dian)(dian)阻過(guo)低，塵(chen)(chen)粒難以保持(chi)在集塵(chen)(chen)電(dian)(dian)極(ji)(ji)上，致使其重返(fan)氣(qi)流。比(bi)電(dian)(dian)阻過(guo)高，到達集塵(chen)(chen)電(dian)(dian)極(ji)(ji)的塵(chen)(chen)粒電(dian)(dian)荷不易放出，在塵(chen)(chen)層之間形成(cheng)(cheng)電(dian)(dian)壓(ya)(ya)梯度會產(chan)生局部擊(ji)穿和(he)放電(dian)(dian)現象(xiang)。這些(xie)情況都會造成(cheng)(cheng)除塵(chen)(chen)效率下(xia)降。

電(dian)(dian)(dian)(dian)除塵(chen)器的基(ji)本原理是利用電(dian)(dian)(dian)(dian)力捕(bu)(bu)集煙氣(qi)中的粉(fen)塵(chen)，主要包括(kuo)以下(xia)四個相(xiang)互有關(guan)的物理過程: (1) 氣(qi)體(ti)(ti)的電(dian)(dian)(dian)(dian)離。(2) 粉(fen)塵(chen)的荷(he)電(dian)(dian)(dian)(dian)。(3) 荷(he)電(dian)(dian)(dian)(dian)粉(fen)塵(chen)向(xiang)電(dian)(dian)(dian)(dian)極(ji)移動(dong)。(4) 荷(he)電(dian)(dian)(dian)(dian)粉(fen)塵(chen)的捕(bu)(bu)集。