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)(dian)除(chu)塵(chen)(chen)器是以靜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)凈化法來收捕廢氣(qi)(qi)中的(de)(de)粉塵(chen)(chen),它的(de)(de)凈化工作(zuo)(zuo)上要是依靠電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)極和沉淀兩個(ge)系統來完成的(de)(de),當(dang)含塵(chen)(chen)氣(qi)(qi)體(ti)進(jin)(jin)(jin)人(ren)(ren)(ren)氣(qi)(qi)刺叭時,含塵(chen)(chen)氣(qi)(qi)體(ti)受到氣(qi)(qi)流(liu)分(fen)(fen)布板以及折流(liu)板的(de)(de)調整后,使(shi)氣(qi)(qi)流(liu)能(neng)較均勻(yun)地進(jin)(jin)(jin)人(ren)(ren)(ren)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)。在(zai)橫斷面(mian)擴大的(de)(de)作(zuo)(zuo)用下,氣(qi)(qi)流(liu)速(su)度迅速(su)降低(di),其中有(you)些較重的(de)(de)塵(chen)(chen)粒(li)便失去(qu)速(su)度而沉降下來。進(jin)(jin)(jin)人(ren)(ren)(ren)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)的(de)(de)含塵(chen)(chen)氣(qi)(qi)體(ti)由(you)于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)極通人(ren)(ren)(ren)高壓直流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian),則在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)極附近產(chan)生電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)現象(xiang),使(shi)氣(qi)(qi)體(ti)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li),電(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li)后的(de)(de)氣(qi)(qi)體(ti)中存在(zai)大量的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子和離(li)子,這些電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子和離(li)子與進(jin)(jin)(jin)人(ren)(ren)(ren)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)的(de)(de)粉塵(chen)(chen)結(jie)合(he)起來,使(shi)塵(chen)(chen)粒(li)帶(dai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian),帶(dai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)塵(chen)(chen)粒(li)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)力的(de)(de)作(zuo)(zuo)用下趨向本設備(bei)(bei)陽(yang)(yang)極(正極、本設備(bei)(bei)采(cai)用負高壓制)和陰極(負極) , 釋放出電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子分(fen)(fen)別沉積(ji)在(zai)相應的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極上,通過(guo)設備(bei)(bei)陰陽(yang)(yang)極振(zhen)打系統的(de)(de)振(zhen)打,使(shi)沉積(ji)在(zai)陰陽(yang)(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極上的(de)(de)粉塵(chen)(chen)振(zhen)落,進(jin)(jin)(jin)人(ren)(ren)(ren)集灰(hui)斗 通過(guo)排灰(hui)裝置放出,回收有(you)物料,被)凈化的(de)(de)氣(qi)(qi)體(ti)排入(ru)大氣(qi)(qi)。
工作原理
靜(jing)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器的(de)(de)(de)工作(zuo)原理是(shi)利用高(gao)壓電(dian)(dian)(dian)(dian)場使(shi)煙(yan)氣發生(sheng)電(dian)(dian)(dian)(dian)離,氣流(liu)(liu)中(zhong)的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)荷(he)電(dian)(dian)(dian)(dian)在(zai)電(dian)(dian)(dian)(dian)場作(zuo)用下(xia)與氣流(liu)(liu)分(fen)離。負極(ji)(ji)由(you)不同斷面(mian)形狀(zhuang)的(de)(de)(de)金(jin)屬(shu)導(dao)線制(zhi)成(cheng),叫放(fang)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)極(ji)(ji)。正極(ji)(ji)由(you)不同幾何形狀(zhuang)的(de)(de)(de)金(jin)屬(shu)板制(zhi)成(cheng),叫集塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)極(ji)(ji)。靜(jing)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器的(de)(de)(de)性能受粉(fen)塵(chen)(chen)(chen)(chen)性質、設備(bei)構造和(he)煙(yan)氣流(liu)(liu)速等三個因素的(de)(de)(de)影響。粉(fen)塵(chen)(chen)(chen)(chen)的(de)(de)(de)比電(dian)(dian)(dian)(dian)阻(zu)是(shi)評價導(dao)電(dian)(dian)(dian)(dian)性的(de)(de)(de)指標,它對除(chu)(chu)塵(chen)(chen)(chen)(chen)效率有直接的(de)(de)(de)影響。比電(dian)(dian)(dian)(dian)阻(zu)過低,塵(chen)(chen)(chen)(chen)粒難以(yi)保持在(zai)集塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)極(ji)(ji)上,致(zhi)使(shi)其重返氣流(liu)(liu)。比電(dian)(dian)(dian)(dian)阻(zu)過高(gao),到達集塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)極(ji)(ji)的(de)(de)(de)塵(chen)(chen)(chen)(chen)粒電(dian)(dian)(dian)(dian)荷(he)不易放(fang)出,在(zai)塵(chen)(chen)(chen)(chen)層(ceng)之間形成(cheng)電(dian)(dian)(dian)(dian)壓梯度會產(chan)生(sheng)局部擊(ji)穿和(he)放(fang)電(dian)(dian)(dian)(dian)現象。這些情況都會造成(cheng)除(chu)(chu)塵(chen)(chen)(chen)(chen)效率下(xia)降。
電(dian)(dian)(dian)(dian)(dian)除塵器的(de)(de)基本原(yuan)理是利用(yong)電(dian)(dian)(dian)(dian)(dian)力捕集(ji)煙氣(qi)中的(de)(de)粉(fen)(fen)塵,主(zhu)要(yao)包括以下四個相互有關的(de)(de)物理過程(cheng): (1) 氣(qi)體(ti)的(de)(de)電(dian)(dian)(dian)(dian)(dian)離。(2) 粉(fen)(fen)塵的(de)(de)荷(he)電(dian)(dian)(dian)(dian)(dian)。(3) 荷(he)電(dian)(dian)(dian)(dian)(dian)粉(fen)(fen)塵向電(dian)(dian)(dian)(dian)(dian)極移動。(4) 荷(he)電(dian)(dian)(dian)(dian)(dian)粉(fen)(fen)塵的(de)(de)捕集(ji)。