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)(dian)(dian)除塵(chen)(chen)(chen)器(qi)是以(yi)靜(jing)電(dian)(dian)(dian)(dian)(dian)凈(jing)(jing)化法來收(shou)捕廢氣(qi)(qi)(qi)中的(de)(de)(de)粉(fen)(fen)塵(chen)(chen)(chen),它的(de)(de)(de)凈(jing)(jing)化工作上要是依靠(kao)電(dian)(dian)(dian)(dian)(dian)暈極(ji)(ji)(ji)(ji)(ji)和沉淀兩個(ge)系(xi)統來完成的(de)(de)(de),當含(han)塵(chen)(chen)(chen)氣(qi)(qi)(qi)體(ti)(ti)進(jin)人(ren)氣(qi)(qi)(qi)刺叭時,含(han)塵(chen)(chen)(chen)氣(qi)(qi)(qi)體(ti)(ti)受到(dao)氣(qi)(qi)(qi)流(liu)分布板以(yi)及折流(liu)板的(de)(de)(de)調(diao)整(zheng)后,使氣(qi)(qi)(qi)流(liu)能較(jiao)均勻地進(jin)人(ren)電(dian)(dian)(dian)(dian)(dian)場(chang)。在(zai)(zai)橫斷(duan)面擴大的(de)(de)(de)作用下,氣(qi)(qi)(qi)流(liu)速度迅速降低,其中有些(xie)較(jiao)重的(de)(de)(de)塵(chen)(chen)(chen)粒(li)便失去速度而沉降下來。進(jin)人(ren)電(dian)(dian)(dian)(dian)(dian)場(chang)的(de)(de)(de)含(han)塵(chen)(chen)(chen)氣(qi)(qi)(qi)體(ti)(ti)由于電(dian)(dian)(dian)(dian)(dian)暈極(ji)(ji)(ji)(ji)(ji)通(tong)人(ren)高(gao)壓直(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian),則在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)暈極(ji)(ji)(ji)(ji)(ji)附近產生電(dian)(dian)(dian)(dian)(dian)暈現象,使氣(qi)(qi)(qi)體(ti)(ti)電(dian)(dian)(dian)(dian)(dian)離(li),電(dian)(dian)(dian)(dian)(dian)離(li)后的(de)(de)(de)氣(qi)(qi)(qi)體(ti)(ti)中存在(zai)(zai)大量的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)和離(li)子(zi)(zi)(zi),這些(xie)電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)和離(li)子(zi)(zi)(zi)與進(jin)人(ren)電(dian)(dian)(dian)(dian)(dian)場(chang)的(de)(de)(de)粉(fen)(fen)塵(chen)(chen)(chen)結合起來,使塵(chen)(chen)(chen)粒(li)帶電(dian)(dian)(dian)(dian)(dian),帶電(dian)(dian)(dian)(dian)(dian)塵(chen)(chen)(chen)粒(li)在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)場(chang)力的(de)(de)(de)作用下趨向本設備陽(yang)極(ji)(ji)(ji)(ji)(ji)(正極(ji)(ji)(ji)(ji)(ji)、本設備采(cai)用負(fu)高(gao)壓制)和陰極(ji)(ji)(ji)(ji)(ji)(負(fu)極(ji)(ji)(ji)(ji)(ji)) , 釋放出電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)分別沉積在(zai)(zai)相應的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)(ji)上,通(tong)過(guo)設備陰陽(yang)極(ji)(ji)(ji)(ji)(ji)振打系(xi)統的(de)(de)(de)振打,使沉積在(zai)(zai)陰陽(yang)電(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)(ji)上的(de)(de)(de)粉(fen)(fen)塵(chen)(chen)(chen)振落,進(jin)人(ren)集灰斗 通(tong)過(guo)排灰裝置放出,回收(shou)有物料(liao),被(bei))凈(jing)(jing)化的(de)(de)(de)氣(qi)(qi)(qi)體(ti)(ti)排入大氣(qi)(qi)(qi)。
工(gong)作(zuo)原理
靜電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)的(de)(de)(de)工作原(yuan)理是利用高(gao)壓(ya)電(dian)(dian)(dian)(dian)(dian)場(chang)使煙氣(qi)(qi)發生電(dian)(dian)(dian)(dian)(dian)離,氣(qi)(qi)流中的(de)(de)(de)粉塵(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)(dian)在電(dian)(dian)(dian)(dian)(dian)場(chang)作用下與氣(qi)(qi)流分離。負極(ji)(ji)由(you)不同(tong)斷面形狀(zhuang)的(de)(de)(de)金(jin)屬導線制成(cheng),叫放電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)極(ji)(ji)。正極(ji)(ji)由(you)不同(tong)幾何(he)形狀(zhuang)的(de)(de)(de)金(jin)屬板制成(cheng),叫集(ji)塵(chen)(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)(chen)器(qi)的(de)(de)(de)性(xing)能受粉塵(chen)(chen)(chen)(chen)性(xing)質、設備構造和(he)(he)煙氣(qi)(qi)流速等三個因素的(de)(de)(de)影響。粉塵(chen)(chen)(chen)(chen)的(de)(de)(de)比電(dian)(dian)(dian)(dian)(dian)阻(zu)是評(ping)價導電(dian)(dian)(dian)(dian)(dian)性(xing)的(de)(de)(de)指標,它對除(chu)塵(chen)(chen)(chen)(chen)效率(lv)有直接的(de)(de)(de)影響。比電(dian)(dian)(dian)(dian)(dian)阻(zu)過低(di),塵(chen)(chen)(chen)(chen)粒(li)難以(yi)保持在集(ji)塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)極(ji)(ji)上,致使其重(zhong)返氣(qi)(qi)流。比電(dian)(dian)(dian)(dian)(dian)阻(zu)過高(gao),到(dao)達集(ji)塵(chen)(chen)(chen)(chen)電(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)荷不易放出,在塵(chen)(chen)(chen)(chen)層之間(jian)形成(cheng)電(dian)(dian)(dian)(dian)(dian)壓(ya)梯度會產生局部擊穿和(he)(he)放電(dian)(dian)(dian)(dian)(dian)現象(xiang)。這些情況都會造成(cheng)除(chu)塵(chen)(chen)(chen)(chen)效率(lv)下降。
電(dian)(dian)除塵(chen)(chen)器的基本原理是利(li)用電(dian)(dian)力捕集(ji)(ji)煙氣中的粉(fen)(fen)(fen)塵(chen)(chen),主要包括以下四個相互有關(guan)的物理過程: (1) 氣體(ti)的電(dian)(dian)離。(2) 粉(fen)(fen)(fen)塵(chen)(chen)的荷(he)電(dian)(dian)。(3) 荷(he)電(dian)(dian)粉(fen)(fen)(fen)塵(chen)(chen)向電(dian)(dian)極移動。(4) 荷(he)電(dian)(dian)粉(fen)(fen)(fen)塵(chen)(chen)的捕集(ji)(ji)。