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)(dian)(dian)(dian)除(chu)塵(chen)(chen)器是(shi)以(yi)靜電(dian)(dian)(dian)(dian)(dian)(dian)凈化法來(lai)(lai)(lai)收捕廢氣(qi)(qi)中的(de)(de)(de)(de)(de)(de)粉塵(chen)(chen),它的(de)(de)(de)(de)(de)(de)凈化工(gong)作(zuo)(zuo)上(shang)要是(shi)依靠電(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)極(ji)(ji)和(he)沉淀兩(liang)個系統(tong)來(lai)(lai)(lai)完(wan)成的(de)(de)(de)(de)(de)(de),當含(han)(han)塵(chen)(chen)氣(qi)(qi)體(ti)(ti)進(jin)人(ren)氣(qi)(qi)刺叭時(shi),含(han)(han)塵(chen)(chen)氣(qi)(qi)體(ti)(ti)受到氣(qi)(qi)流分布板(ban)(ban)以(yi)及折流板(ban)(ban)的(de)(de)(de)(de)(de)(de)調整后(hou),使(shi)氣(qi)(qi)流能較均勻(yun)地進(jin)人(ren)電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)。在(zai)橫斷(duan)面擴大(da)的(de)(de)(de)(de)(de)(de)作(zuo)(zuo)用(yong)下,氣(qi)(qi)流速(su)度迅速(su)降低,其中有些較重的(de)(de)(de)(de)(de)(de)塵(chen)(chen)粒便失去速(su)度而(er)沉降下來(lai)(lai)(lai)。進(jin)人(ren)電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)的(de)(de)(de)(de)(de)(de)含(han)(han)塵(chen)(chen)氣(qi)(qi)體(ti)(ti)由于電(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)極(ji)(ji)通人(ren)高壓直流電(dian)(dian)(dian)(dian)(dian)(dian),則(ze)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)極(ji)(ji)附近(jin)產生電(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)現象,使(shi)氣(qi)(qi)體(ti)(ti)電(dian)(dian)(dian)(dian)(dian)(dian)離,電(dian)(dian)(dian)(dian)(dian)(dian)離后(hou)的(de)(de)(de)(de)(de)(de)氣(qi)(qi)體(ti)(ti)中存在(zai)大(da)量的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)和(he)離子(zi)(zi),這些電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)和(he)離子(zi)(zi)與(yu)進(jin)人(ren)電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)的(de)(de)(de)(de)(de)(de)粉塵(chen)(chen)結合起來(lai)(lai)(lai),使(shi)塵(chen)(chen)粒帶電(dian)(dian)(dian)(dian)(dian)(dian),帶電(dian)(dian)(dian)(dian)(dian)(dian)塵(chen)(chen)粒在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)力的(de)(de)(de)(de)(de)(de)作(zuo)(zuo)用(yong)下趨向本設(she)備陽(yang)極(ji)(ji)(正極(ji)(ji)、本設(she)備采(cai)用(yong)負(fu)(fu)高壓制)和(he)陰(yin)極(ji)(ji)(負(fu)(fu)極(ji)(ji)) , 釋放出電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)分別(bie)沉積在(zai)相應的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)上(shang),通過(guo)設(she)備陰(yin)陽(yang)極(ji)(ji)振(zhen)打(da)系統(tong)的(de)(de)(de)(de)(de)(de)振(zhen)打(da),使(shi)沉積在(zai)陰(yin)陽(yang)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)上(shang)的(de)(de)(de)(de)(de)(de)粉塵(chen)(chen)振(zhen)落,進(jin)人(ren)集灰斗 通過(guo)排(pai)灰裝(zhuang)置放出,回收有物料,被(bei))凈化的(de)(de)(de)(de)(de)(de)氣(qi)(qi)體(ti)(ti)排(pai)入大(da)氣(qi)(qi)。
工作原理
靜電(dian)(dian)(dian)(dian)除塵(chen)(chen)器的工(gong)作原理是(shi)利用高(gao)壓電(dian)(dian)(dian)(dian)場使煙氣發生電(dian)(dian)(dian)(dian)離,氣流(liu)中(zhong)的粉塵(chen)(chen)荷電(dian)(dian)(dian)(dian)在(zai)電(dian)(dian)(dian)(dian)場作用下(xia)與氣流(liu)分離。負(fu)極(ji)(ji)由(you)不同斷(duan)面形(xing)狀的金屬導線(xian)制(zhi)成,叫(jiao)放(fang)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)極(ji)(ji)。正極(ji)(ji)由(you)不同幾何(he)形(xing)狀的金屬板制(zhi)成,叫(jiao)集塵(chen)(chen)電(dian)(dian)(dian)(dian)極(ji)(ji)。靜電(dian)(dian)(dian)(dian)除塵(chen)(chen)器的性能(neng)受粉塵(chen)(chen)性質、設(she)備構(gou)造(zao)和(he)煙氣流(liu)速(su)等(deng)三個因素的影(ying)(ying)響。粉塵(chen)(chen)的比電(dian)(dian)(dian)(dian)阻(zu)是(shi)評價導電(dian)(dian)(dian)(dian)性的指標,它對除塵(chen)(chen)效率有直接(jie)的影(ying)(ying)響。比電(dian)(dian)(dian)(dian)阻(zu)過(guo)低,塵(chen)(chen)粒(li)難以保持(chi)在(zai)集塵(chen)(chen)電(dian)(dian)(dian)(dian)極(ji)(ji)上,致(zhi)使其重返氣流(liu)。比電(dian)(dian)(dian)(dian)阻(zu)過(guo)高(gao),到達集塵(chen)(chen)電(dian)(dian)(dian)(dian)極(ji)(ji)的塵(chen)(chen)粒(li)電(dian)(dian)(dian)(dian)荷不易(yi)放(fang)出,在(zai)塵(chen)(chen)層之(zhi)間(jian)形(xing)成電(dian)(dian)(dian)(dian)壓梯度會產生局部擊穿和(he)放(fang)電(dian)(dian)(dian)(dian)現象。這些情況都會造(zao)成除塵(chen)(chen)效率下(xia)降(jiang)。
電(dian)(dian)(dian)(dian)除塵(chen)器的(de)(de)(de)基本(ben)原理(li)是利用電(dian)(dian)(dian)(dian)力捕集煙(yan)氣中的(de)(de)(de)粉(fen)塵(chen),主要包括以下四個相互有關的(de)(de)(de)物(wu)理(li)過程: (1) 氣體(ti)的(de)(de)(de)電(dian)(dian)(dian)(dian)離。(2) 粉(fen)塵(chen)的(de)(de)(de)荷(he)電(dian)(dian)(dian)(dian)。(3) 荷(he)電(dian)(dian)(dian)(dian)粉(fen)塵(chen)向電(dian)(dian)(dian)(dian)極移動。(4) 荷(he)電(dian)(dian)(dian)(dian)粉(fen)塵(chen)的(de)(de)(de)捕集。