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(jing)電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)器(qi)是以(yi)靜(jing)電(dian)(dian)(dian)(dian)(dian)凈化(hua)(hua)法來(lai)收捕廢氣(qi)中(zhong)(zhong)(zhong)的(de)(de)(de)(de)粉塵(chen)(chen),它的(de)(de)(de)(de)凈化(hua)(hua)工作(zuo)上要是依靠電(dian)(dian)(dian)(dian)(dian)暈極和沉(chen)淀兩個系(xi)統來(lai)完成的(de)(de)(de)(de),當含(han)塵(chen)(chen)氣(qi)體進人(ren)氣(qi)刺叭時(shi),含(han)塵(chen)(chen)氣(qi)體受(shou)到(dao)氣(qi)流(liu)(liu)(liu)分布(bu)板以(yi)及折流(liu)(liu)(liu)板的(de)(de)(de)(de)調(diao)整后,使(shi)氣(qi)流(liu)(liu)(liu)能較均勻地進人(ren)電(dian)(dian)(dian)(dian)(dian)場。在(zai)橫斷(duan)面(mian)擴大(da)的(de)(de)(de)(de)作(zuo)用下,氣(qi)流(liu)(liu)(liu)速度(du)迅速降低,其中(zhong)(zhong)(zhong)有些較重(zhong)的(de)(de)(de)(de)塵(chen)(chen)粒(li)便失(shi)去速度(du)而沉(chen)降下來(lai)。進人(ren)電(dian)(dian)(dian)(dian)(dian)場的(de)(de)(de)(de)含(han)塵(chen)(chen)氣(qi)體由(you)于電(dian)(dian)(dian)(dian)(dian)暈極通人(ren)高(gao)壓(ya)直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian),則在(zai)電(dian)(dian)(dian)(dian)(dian)暈極附(fu)近產生(sheng)電(dian)(dian)(dian)(dian)(dian)暈現象,使(shi)氣(qi)體電(dian)(dian)(dian)(dian)(dian)離(li),電(dian)(dian)(dian)(dian)(dian)離(li)后的(de)(de)(de)(de)氣(qi)體中(zhong)(zhong)(zhong)存在(zai)大(da)量的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)和離(li)子(zi)(zi),這(zhe)些電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)和離(li)子(zi)(zi)與進人(ren)電(dian)(dian)(dian)(dian)(dian)場的(de)(de)(de)(de)粉塵(chen)(chen)結合起來(lai),使(shi)塵(chen)(chen)粒(li)帶(dai)(dai)電(dian)(dian)(dian)(dian)(dian),帶(dai)(dai)電(dian)(dian)(dian)(dian)(dian)塵(chen)(chen)粒(li)在(zai)電(dian)(dian)(dian)(dian)(dian)場力的(de)(de)(de)(de)作(zuo)用下趨(qu)向(xiang)本(ben)設備(bei)陽(yang)(yang)極(正極、本(ben)設備(bei)采用負高(gao)壓(ya)制)和陰(yin)極(負極) , 釋(shi)放出電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)分別(bie)沉(chen)積在(zai)相應的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)極上,通過設備(bei)陰(yin)陽(yang)(yang)極振打系(xi)統的(de)(de)(de)(de)振打,使(shi)沉(chen)積在(zai)陰(yin)陽(yang)(yang)電(dian)(dian)(dian)(dian)(dian)極上的(de)(de)(de)(de)粉塵(chen)(chen)振落,進人(ren)集灰斗 通過排灰裝置放出,回(hui)收有物料,被)凈化(hua)(hua)的(de)(de)(de)(de)氣(qi)體排入大(da)氣(qi)。
工(gong)作原理(li)
靜電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器的(de)(de)(de)工(gong)作原理是(shi)(shi)利用(yong)高(gao)壓電(dian)(dian)(dian)(dian)(dian)(dian)場使(shi)煙氣(qi)(qi)發生電(dian)(dian)(dian)(dian)(dian)(dian)離(li),氣(qi)(qi)流(liu)(liu)中的(de)(de)(de)粉塵(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)(dian)(dian)在電(dian)(dian)(dian)(dian)(dian)(dian)場作用(yong)下(xia)與氣(qi)(qi)流(liu)(liu)分(fen)離(li)。負極(ji)(ji)由(you)不同斷(duan)面形狀(zhuang)(zhuang)的(de)(de)(de)金屬導線(xian)制(zhi)成(cheng),叫放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)。正(zheng)極(ji)(ji)由(you)不同幾何形狀(zhuang)(zhuang)的(de)(de)(de)金屬板制(zhi)成(cheng),叫集塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)。靜電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器的(de)(de)(de)性能受粉塵(chen)(chen)(chen)(chen)性質、設備(bei)構造和煙氣(qi)(qi)流(liu)(liu)速(su)等三個因(yin)素的(de)(de)(de)影(ying)響(xiang)。粉塵(chen)(chen)(chen)(chen)的(de)(de)(de)比電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)是(shi)(shi)評價(jia)導電(dian)(dian)(dian)(dian)(dian)(dian)性的(de)(de)(de)指標,它對除(chu)塵(chen)(chen)(chen)(chen)效(xiao)率有直(zhi)接(jie)的(de)(de)(de)影(ying)響(xiang)。比電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)過低,塵(chen)(chen)(chen)(chen)粒(li)難以(yi)保持在集塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)上,致(zhi)使(shi)其重返(fan)氣(qi)(qi)流(liu)(liu)。比電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)過高(gao),到(dao)達(da)集塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)的(de)(de)(de)塵(chen)(chen)(chen)(chen)粒(li)電(dian)(dian)(dian)(dian)(dian)(dian)荷不易放(fang)出,在塵(chen)(chen)(chen)(chen)層(ceng)之間形成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)壓梯度(du)會(hui)產生局部擊穿和放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)現(xian)象。這(zhe)些(xie)情(qing)況都(dou)會(hui)造成(cheng)除(chu)塵(chen)(chen)(chen)(chen)效(xiao)率下(xia)降。
電除(chu)塵(chen)器的基本原理是利用(yong)電力捕集煙氣中的粉(fen)塵(chen),主要包括(kuo)以下(xia)四個相(xiang)互(hu)有(you)關(guan)的物理過程: (1) 氣體的電離。(2) 粉(fen)塵(chen)的荷(he)電。(3) 荷(he)電粉(fen)塵(chen)向電極移(yi)動。(4) 荷(he)電粉(fen)塵(chen)的捕集。