![濕式電除塵器](/uploads/190122/1_102135258.jpg)
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濕(shi)式(shi)電除(chu)塵器采用液體沖刷集塵 表面(mian)來進(jin)行清灰,可(ke) 收(shou)集微細顆粒物(PM2.5粉(fen)塵、SO3酸霧、氣溶膠)、污染物(多(duo)環芳烴、二惡英)等。使(shi)用濕(shi)式(shi)電除(chu)塵器后含(han)濕(shi)煙(yan)氣中的煙(yan)塵排放可(ke)達10mg/m甚(shen)至(zhi)5mg/m以(yi)下,收(shou)塵性能與粉(fen)塵特性無關,適用于含(han)濕(shi)煙(yan)氣的處(chu)理(li),尤其適用在電廠、鋼廠濕(shi)法脫硫之后含(han)塵煙(yan)氣的處(chu)理(li)上。
濕式靜電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器收塵(chen)(chen)(chen)原理(li):濕式電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器和與(yu)干式電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器的(de)收塵(chen)(chen)(chen)原理(li)相同,都是靠高壓電(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)使(shi)(shi)得(de)粉塵(chen)(chen)(chen)荷電(dian)(dian)(dian),荷電(dian)(dian)(dian)后的(de)粉塵(chen)(chen)(chen)在電(dian)(dian)(dian)場力(li)的(de)作用(yong)下到(dao)達(da)到(dao)集(ji)塵(chen)(chen)(chen)板板。但在對集(ji)塵(chen)(chen)(chen)板上(shang)捕集(ji)到(dao)的(de)粉塵(chen)(chen)(chen) 方式上(shang)WESP與(yu)DESP有(you)較大區別,干式電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器一般采用(yong)機械振打或(huo)聲波清灰等方式 電(dian)(dian)(dian) 上(shang)的(de)積灰,而(er)濕式電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器則采用(yong)沖刷(shua)液沖洗電(dian)(dian)(dian) ,在 板上(shang)形成(cheng)連(lian)續的(de)液膜,使(shi)(shi)粉塵(chen)(chen)(chen)隨著沖刷(shua)液的(de)流動而(er) 。
濕式電除塵(chen)(chen)設(she)(she)(she)備具有(you)除塵(chen)(chen)、壓(ya)力損失小、操做簡單、能耗小、無(wu)運動部(bu)件、無(wu)二次揚塵(chen)(chen)、維護費用低(di)、生產停工期(qi)短、可(ke)工作于煙氣(qi)露點溫度以下、由于結(jie)構緊湊而可(ke)與其它煙氣(qi)治(zhi)理設(she)(she)(she)備相互結(jie)合、設(she)(she)(she)計形式多(duo)樣化等優點。
濕電除塵器(qi)的結構(gou):濕式(shi)(shi)電除塵器(qi)還可分為(wei)橫流(liu)式(shi)(shi)(臥式(shi)(shi))和豎(shu)(shu)流(liu)式(shi)(shi)(立式(shi)(shi)),橫流(liu)式(shi)(shi)多為(wei)板式(shi)(shi)結構(gou),氣(qi)體流(liu)向(xiang)為(wei)水(shui)平方(fang)向(xiang)進出(chu),結構(gou)類似干(gan)式(shi)(shi)電除塵器(qi);豎(shu)(shu)流(liu)式(shi)(shi)多為(wei)管式(shi)(shi)機構(gou),氣(qi)體流(liu)向(xiang)為(wei)垂直方(fang)向(xiang)進出(chu)。
因無振打(da)裝(zhuang)(zhuang)置,運行(xing)也較。采用(yong)噴(pen)(pen)水(shui)(shui)或溢流(liu)水(shui)(shui)等方式(shi)使集(ji)塵(chen)(chen) 表面形成導(dao)電(dian)膜的裝(zhuang)(zhuang)置存在著腐蝕、污(wu)泥和污(wu)水(shui)(shui)的處理(li)問(wen)題(ti),僅在氣(qi)體含(han)塵(chen)(chen)濃(nong)度較低;要求含(han)塵(chen)(chen)效率較高時(shi)才(cai)采用(yong);使用(yong)蝕導(dao)電(dian)材料做集(ji)塵(chen)(chen) 的濕式(shi)電(dian)除塵(chen)(chen)器(qi)不需要長期噴(pen)(pen)水(shui)(shui)或溢流(liu)水(shui)(shui),只根據系統運行(xing)狀(zhuang)況定(ding)期進行(xing)沖(chong)洗,僅消耗 少量(liang)的水(shui)(shui),該(gai)部分水(shui)(shui)可回收(shou)循環(huan)利用(yong),收(shou)塵(chen)(chen)系統基(ji)本(ben)無二次(ci)污(wu)染(ran)。