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(jing)電(dian)(dian)(dian)除塵(chen)器是(shi)以(yi)靜(jing)電(dian)(dian)(dian)凈(jing)化(hua)(hua)法來(lai)收(shou)捕(bu)廢氣(qi)(qi)(qi)中(zhong)的(de)(de)(de)粉(fen)塵(chen),它(ta)的(de)(de)(de)凈(jing)化(hua)(hua)工作上(shang)(shang)要是(shi)依靠電(dian)(dian)(dian)暈(yun)極和沉(chen)淀(dian)兩個系統(tong)來(lai)完成的(de)(de)(de),當含(han)(han)塵(chen)氣(qi)(qi)(qi)體進人(ren)氣(qi)(qi)(qi)刺(ci)叭時,含(han)(han)塵(chen)氣(qi)(qi)(qi)體受到氣(qi)(qi)(qi)流(liu)(liu)(liu)分(fen)布(bu)板以(yi)及折(zhe)流(liu)(liu)(liu)板的(de)(de)(de)調整后,使(shi)氣(qi)(qi)(qi)流(liu)(liu)(liu)能較均(jun)勻地進人(ren)電(dian)(dian)(dian)場。在橫斷(duan)面擴大(da)的(de)(de)(de)作用下,氣(qi)(qi)(qi)流(liu)(liu)(liu)速度迅(xun)速降低(di),其中(zhong)有(you)(you)些較重的(de)(de)(de)塵(chen)粒便失去速度而沉(chen)降下來(lai)。進人(ren)電(dian)(dian)(dian)場的(de)(de)(de)含(han)(han)塵(chen)氣(qi)(qi)(qi)體由(you)于(yu)電(dian)(dian)(dian)暈(yun)極通人(ren)高壓(ya)直流(liu)(liu)(liu)電(dian)(dian)(dian),則在電(dian)(dian)(dian)暈(yun)極附近產生電(dian)(dian)(dian)暈(yun)現象,使(shi)氣(qi)(qi)(qi)體電(dian)(dian)(dian)離,電(dian)(dian)(dian)離后的(de)(de)(de)氣(qi)(qi)(qi)體中(zhong)存在大(da)量的(de)(de)(de)電(dian)(dian)(dian)子(zi)(zi)和離子(zi)(zi),這(zhe)些電(dian)(dian)(dian)子(zi)(zi)和離子(zi)(zi)與進人(ren)電(dian)(dian)(dian)場的(de)(de)(de)粉(fen)塵(chen)結合(he)起來(lai),使(shi)塵(chen)粒帶電(dian)(dian)(dian),帶電(dian)(dian)(dian)塵(chen)粒在電(dian)(dian)(dian)場力的(de)(de)(de)作用下趨向本設(she)備陽極(正(zheng)極、本設(she)備采(cai)用負高壓(ya)制)和陰(yin)極(負極) , 釋放出電(dian)(dian)(dian)子(zi)(zi)分(fen)別(bie)沉(chen)積在相應的(de)(de)(de)電(dian)(dian)(dian)極上(shang)(shang),通過設(she)備陰(yin)陽極振(zhen)打(da)系統(tong)的(de)(de)(de)振(zhen)打(da),使(shi)沉(chen)積在陰(yin)陽電(dian)(dian)(dian)極上(shang)(shang)的(de)(de)(de)粉(fen)塵(chen)振(zhen)落,進人(ren)集灰斗(dou) 通過排灰裝(zhuang)置放出,回收(shou)有(you)(you)物料(liao),被)凈(jing)化(hua)(hua)的(de)(de)(de)氣(qi)(qi)(qi)體排入(ru)大(da)氣(qi)(qi)(qi)。
工作原理(li)
靜電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)的(de)(de)(de)工作原理是(shi)利用高壓電(dian)(dian)(dian)(dian)(dian)場(chang)(chang)使煙(yan)氣(qi)發生電(dian)(dian)(dian)(dian)(dian)離,氣(qi)流(liu)中(zhong)的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)(dian)在(zai)電(dian)(dian)(dian)(dian)(dian)場(chang)(chang)作用下與氣(qi)流(liu)分離。負極(ji)(ji)由不(bu)(bu)同(tong)斷面形狀的(de)(de)(de)金屬(shu)導(dao)(dao)線制(zhi)成(cheng),叫放(fang)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)極(ji)(ji)。正(zheng)極(ji)(ji)由不(bu)(bu)同(tong)幾何形狀的(de)(de)(de)金屬(shu)板制(zhi)成(cheng),叫集(ji)塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)極(ji)(ji)。靜電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)的(de)(de)(de)性(xing)(xing)能受(shou)粉(fen)塵(chen)(chen)(chen)性(xing)(xing)質、設備(bei)構造和煙(yan)氣(qi)流(liu)速等三個(ge)因素的(de)(de)(de)影響(xiang)。粉(fen)塵(chen)(chen)(chen)的(de)(de)(de)比(bi)電(dian)(dian)(dian)(dian)(dian)阻是(shi)評(ping)價導(dao)(dao)電(dian)(dian)(dian)(dian)(dian)性(xing)(xing)的(de)(de)(de)指標,它對除(chu)塵(chen)(chen)(chen)效率有直接的(de)(de)(de)影響(xiang)。比(bi)電(dian)(dian)(dian)(dian)(dian)阻過低,塵(chen)(chen)(chen)粒難(nan)以保持(chi)在(zai)集(ji)塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)極(ji)(ji)上,致使其(qi)重返氣(qi)流(liu)。比(bi)電(dian)(dian)(dian)(dian)(dian)阻過高,到達(da)集(ji)塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)極(ji)(ji)的(de)(de)(de)塵(chen)(chen)(chen)粒電(dian)(dian)(dian)(dian)(dian)荷不(bu)(bu)易(yi)放(fang)出,在(zai)塵(chen)(chen)(chen)層之(zhi)間(jian)形成(cheng)電(dian)(dian)(dian)(dian)(dian)壓梯度會(hui)產生局部擊穿和放(fang)電(dian)(dian)(dian)(dian)(dian)現象。這些情況都會(hui)造成(cheng)除(chu)塵(chen)(chen)(chen)效率下降(jiang)。
電(dian)除塵(chen)(chen)器的基(ji)本原理(li)(li)是利用電(dian)力(li)捕集(ji)煙(yan)氣(qi)中的粉塵(chen)(chen),主要包括以下(xia)四個相互有關的物理(li)(li)過程: (1) 氣(qi)體(ti)(ti)的電(dian)離。(2) 粉塵(chen)(chen)的荷(he)電(dian)。(3) 荷(he)電(dian)粉塵(chen)(chen)向電(dian)極(ji)移動。(4) 荷(he)電(dian)粉塵(chen)(chen)的捕集(ji)。