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)除塵(chen)器是以(yi)靜電(dian)(dian)(dian)凈化法來收(shou)捕(bu)廢氣(qi)(qi)中的(de)粉塵(chen),它的(de)凈化工作(zuo)上(shang)(shang)要(yao)是依靠電(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)(ji)和沉(chen)(chen)淀兩個系統來完(wan)成(cheng)的(de),當含(han)塵(chen)氣(qi)(qi)體(ti)進人(ren)(ren)氣(qi)(qi)刺叭時,含(han)塵(chen)氣(qi)(qi)體(ti)受到(dao)氣(qi)(qi)流(liu)分布板(ban)以(yi)及折流(liu)板(ban)的(de)調整后,使氣(qi)(qi)流(liu)能較均勻地進人(ren)(ren)電(dian)(dian)(dian)場(chang)。在(zai)橫斷面擴大(da)的(de)作(zuo)用(yong)下(xia),氣(qi)(qi)流(liu)速(su)度迅速(su)降低,其(qi)中有(you)些較重的(de)塵(chen)粒便(bian)失去(qu)速(su)度而(er)沉(chen)(chen)降下(xia)來。進人(ren)(ren)電(dian)(dian)(dian)場(chang)的(de)含(han)塵(chen)氣(qi)(qi)體(ti)由于電(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)(ji)通人(ren)(ren)高壓直流(liu)電(dian)(dian)(dian),則在(zai)電(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)(ji)附近產生電(dian)(dian)(dian)暈(yun)現(xian)象,使氣(qi)(qi)體(ti)電(dian)(dian)(dian)離,電(dian)(dian)(dian)離后的(de)氣(qi)(qi)體(ti)中存(cun)在(zai)大(da)量的(de)電(dian)(dian)(dian)子(zi)(zi)和離子(zi)(zi),這些電(dian)(dian)(dian)子(zi)(zi)和離子(zi)(zi)與進人(ren)(ren)電(dian)(dian)(dian)場(chang)的(de)粉塵(chen)結合起來,使塵(chen)粒帶電(dian)(dian)(dian),帶電(dian)(dian)(dian)塵(chen)粒在(zai)電(dian)(dian)(dian)場(chang)力的(de)作(zuo)用(yong)下(xia)趨(qu)向本設(she)備(bei)陽(yang)極(ji)(ji)(ji)(ji)(正極(ji)(ji)(ji)(ji)、本設(she)備(bei)采用(yong)負高壓制)和陰(yin)(yin)極(ji)(ji)(ji)(ji)(負極(ji)(ji)(ji)(ji)) , 釋(shi)放出(chu)電(dian)(dian)(dian)子(zi)(zi)分別沉(chen)(chen)積(ji)(ji)在(zai)相應的(de)電(dian)(dian)(dian)極(ji)(ji)(ji)(ji)上(shang)(shang),通過(guo)設(she)備(bei)陰(yin)(yin)陽(yang)極(ji)(ji)(ji)(ji)振(zhen)打(da)系統的(de)振(zhen)打(da),使沉(chen)(chen)積(ji)(ji)在(zai)陰(yin)(yin)陽(yang)電(dian)(dian)(dian)極(ji)(ji)(ji)(ji)上(shang)(shang)的(de)粉塵(chen)振(zhen)落,進人(ren)(ren)集灰斗 通過(guo)排(pai)灰裝置(zhi)放出(chu),回收(shou)有(you)物料,被)凈化的(de)氣(qi)(qi)體(ti)排(pai)入(ru)大(da)氣(qi)(qi)。
工(gong)作原理
靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)(qi)的(de)(de)(de)工作原理是(shi)利(li)用高壓電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)場使煙氣發生電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)離,氣流(liu)中的(de)(de)(de)粉塵(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)場作用下與氣流(liu)分離。負極(ji)(ji)(ji)由(you)不(bu)同斷面形(xing)狀(zhuang)的(de)(de)(de)金屬(shu)導線制成(cheng)(cheng),叫放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)。正(zheng)極(ji)(ji)(ji)由(you)不(bu)同幾何形(xing)狀(zhuang)的(de)(de)(de)金屬(shu)板(ban)制成(cheng)(cheng),叫集(ji)(ji)塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)。靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)(qi)的(de)(de)(de)性(xing)能受粉塵(chen)(chen)(chen)(chen)性(xing)質(zhi)、設備構造和(he)煙氣流(liu)速等(deng)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)(dian)(dian)(dian)阻是(shi)評價導電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)性(xing)的(de)(de)(de)指標,它對除塵(chen)(chen)(chen)(chen)效率有直接的(de)(de)(de)影響。比電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻過(guo)低,塵(chen)(chen)(chen)(chen)粒難以保持在集(ji)(ji)塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)上,致使其重(zhong)返氣流(liu)。比電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻過(guo)高,到達集(ji)(ji)塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)的(de)(de)(de)塵(chen)(chen)(chen)(chen)粒電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷不(bu)易放出,在塵(chen)(chen)(chen)(chen)層之間形(xing)成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓梯(ti)度(du)會(hui)產生局部擊穿和(he)放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)現象。這些情況都(dou)會(hui)造成(cheng)(cheng)除塵(chen)(chen)(chen)(chen)效率下降。
電(dian)(dian)除塵(chen)(chen)器的(de)基(ji)本原理(li)是利用電(dian)(dian)力捕集(ji)煙氣(qi)中(zhong)的(de)粉(fen)(fen)塵(chen)(chen),主要包括以(yi)下四個(ge)相(xiang)互有關的(de)物理(li)過程: (1) 氣(qi)體(ti)(ti)的(de)電(dian)(dian)離。(2) 粉(fen)(fen)塵(chen)(chen)的(de)荷(he)電(dian)(dian)。(3) 荷(he)電(dian)(dian)粉(fen)(fen)塵(chen)(chen)向電(dian)(dian)極移動。(4) 荷(he)電(dian)(dian)粉(fen)(fen)塵(chen)(chen)的(de)捕集(ji)。