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(wo)式靜電(dian)(dian)(dian)(dian)(dian)除塵(chen)器是(shi)以靜電(dian)(dian)(dian)(dian)(dian)凈化法(fa)來收捕廢氣(qi)(qi)(qi)(qi)中的(de)(de)(de)(de)粉塵(chen),它(ta)的(de)(de)(de)(de)凈化工作上(shang)(shang)要是(shi)依(yi)靠電(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)極(ji)(ji)(ji)和(he)沉淀(dian)兩個系(xi)統(tong)來完成的(de)(de)(de)(de),當(dang)含塵(chen)氣(qi)(qi)(qi)(qi)體(ti)進(jin)人氣(qi)(qi)(qi)(qi)刺叭時,含塵(chen)氣(qi)(qi)(qi)(qi)體(ti)受到氣(qi)(qi)(qi)(qi)流(liu)(liu)分布板以及折流(liu)(liu)板的(de)(de)(de)(de)調整后,使(shi)(shi)(shi)氣(qi)(qi)(qi)(qi)流(liu)(liu)能較(jiao)均勻(yun)地進(jin)人電(dian)(dian)(dian)(dian)(dian)場。在橫斷(duan)面擴大的(de)(de)(de)(de)作用下(xia),氣(qi)(qi)(qi)(qi)流(liu)(liu)速(su)度迅(xun)速(su)降低(di),其中有些較(jiao)重的(de)(de)(de)(de)塵(chen)粒便失去速(su)度而沉降下(xia)來。進(jin)人電(dian)(dian)(dian)(dian)(dian)場的(de)(de)(de)(de)含塵(chen)氣(qi)(qi)(qi)(qi)體(ti)由于(yu)電(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)極(ji)(ji)(ji)通人高壓直流(liu)(liu)電(dian)(dian)(dian)(dian)(dian),則在電(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)極(ji)(ji)(ji)附(fu)近產生(sheng)電(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)現象,使(shi)(shi)(shi)氣(qi)(qi)(qi)(qi)體(ti)電(dian)(dian)(dian)(dian)(dian)離(li),電(dian)(dian)(dian)(dian)(dian)離(li)后的(de)(de)(de)(de)氣(qi)(qi)(qi)(qi)體(ti)中存在大量的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)子(zi)和(he)離(li)子(zi),這些電(dian)(dian)(dian)(dian)(dian)子(zi)和(he)離(li)子(zi)與進(jin)人電(dian)(dian)(dian)(dian)(dian)場的(de)(de)(de)(de)粉塵(chen)結合起來,使(shi)(shi)(shi)塵(chen)粒帶電(dian)(dian)(dian)(dian)(dian),帶電(dian)(dian)(dian)(dian)(dian)塵(chen)粒在電(dian)(dian)(dian)(dian)(dian)場力(li)的(de)(de)(de)(de)作用下(xia)趨向(xiang)本設備(bei)陽(yang)(yang)極(ji)(ji)(ji)(正極(ji)(ji)(ji)、本設備(bei)采用負(fu)高壓制)和(he)陰(yin)極(ji)(ji)(ji)(負(fu)極(ji)(ji)(ji)) , 釋放出電(dian)(dian)(dian)(dian)(dian)子(zi)分別沉積(ji)在相應的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)上(shang)(shang),通過(guo)設備(bei)陰(yin)陽(yang)(yang)極(ji)(ji)(ji)振打系(xi)統(tong)的(de)(de)(de)(de)振打,使(shi)(shi)(shi)沉積(ji)在陰(yin)陽(yang)(yang)電(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)上(shang)(shang)的(de)(de)(de)(de)粉塵(chen)振落,進(jin)人集灰斗 通過(guo)排(pai)灰裝置(zhi)放出,回收有物(wu)料,被)凈化的(de)(de)(de)(de)氣(qi)(qi)(qi)(qi)體(ti)排(pai)入大氣(qi)(qi)(qi)(qi)。
工作原理
靜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)除塵(chen)器的(de)(de)(de)(de)工作原理是利用(yong)高壓電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)使煙(yan)氣(qi)發生(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li),氣(qi)流(liu)中的(de)(de)(de)(de)粉塵(chen)荷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)作用(yong)下與氣(qi)流(liu)分(fen)離(li)。負(fu)極(ji)由不同(tong)斷面形(xing)狀的(de)(de)(de)(de)金屬導(dao)線制成,叫放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)。正極(ji)由不同(tong)幾何形(xing)狀的(de)(de)(de)(de)金屬板制成,叫集(ji)塵(chen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)。靜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)除塵(chen)器的(de)(de)(de)(de)性(xing)能受粉塵(chen)性(xing)質、設備構(gou)造和(he)煙(yan)氣(qi)流(liu)速等三個因素(su)的(de)(de)(de)(de)影(ying)(ying)響(xiang)(xiang)。粉塵(chen)的(de)(de)(de)(de)比電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻是評(ping)價導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)性(xing)的(de)(de)(de)(de)指標,它(ta)對除塵(chen)效(xiao)率有直接的(de)(de)(de)(de)影(ying)(ying)響(xiang)(xiang)。比電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻過(guo)低,塵(chen)粒難(nan)以保持在集(ji)塵(chen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)上(shang),致使其重(zhong)返氣(qi)流(liu)。比電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻過(guo)高,到達集(ji)塵(chen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)的(de)(de)(de)(de)塵(chen)粒電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷不易放(fang)出,在塵(chen)層之間形(xing)成電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓梯度(du)會產生(sheng)局部擊穿(chuan)和(he)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)現象(xiang)。這些情況都(dou)會造成除塵(chen)效(xiao)率下降(jiang)。
電除塵(chen)(chen)器的(de)(de)基(ji)本原理是利用電力捕集(ji)(ji)煙氣中(zhong)的(de)(de)粉(fen)塵(chen)(chen),主(zhu)要包(bao)括以下(xia)四個相互有關的(de)(de)物理過(guo)程: (1) 氣體的(de)(de)電離。(2) 粉(fen)塵(chen)(chen)的(de)(de)荷(he)電。(3) 荷(he)電粉(fen)塵(chen)(chen)向(xiang)電極移動。(4) 荷(he)電粉(fen)塵(chen)(chen)的(de)(de)捕集(ji)(ji)。