臥式電(dian)(dian)除塵器是靜電(dian)(dian)除塵器的一種,是按(an)氣(qi)流方向來定義的。
工(gong)作(zuo)原理:當含(han)(han)塵(chen)(chen)氣(qi)(qi)(qi)體(ti)進入(ru)除(chu)塵(chen)(chen)器入(ru)口(kou)時,含(han)(han)塵(chen)(chen)氣(qi)(qi)(qi)體(ti)在(zai)(zai)氣(qi)(qi)(qi)流分布板以及折流板的均(jun)化下(xia)(xia),氣(qi)(qi)(qi)流均(jun)勻向電(dian)(dian)(dian)場(chang)邁進,在(zai)(zai)入(ru)口(kou)橫斷面擴大的作(zuo)用下(xia)(xia),氣(qi)(qi)(qi)流速(su)度迅(xun)速(su)降低,其中(zhong)(zhong)一些較重的塵(chen)(chen)粒便失去(qu)速(su)度而沉降下(xia)(xia)來。進入(ru)電(dian)(dian)(dian)場(chang)的含(han)(han)塵(chen)(chen)氣(qi)(qi)(qi)體(ti)由(you)于電(dian)(dian)(dian)暈(yun)極通(tong)入(ru)高壓(ya)直流電(dian)(dian)(dian),則(ze)在(zai)(zai)電(dian)(dian)(dian)暈(yun)極附近產生電(dian)(dian)(dian)暈(yun)現(xian)象,使(shi)氣(qi)(qi)(qi)體(ti)電(dian)(dian)(dian)離(li)(li),電(dian)(dian)(dian)離(li)(li)后的氣(qi)(qi)(qi)體(ti)中(zhong)(zhong)存(cun)在(zai)(zai)大量的電(dian)(dian)(dian)子(zi)和(he)離(li)(li)子(zi),使(shi)粉(fen)塵(chen)(chen)帶有(you)電(dian)(dian)(dian)子(zi)同時使(shi)其吸(xi)附在(zai)(zai)陰極板上。后通(tong)過設備(bei)陰陽極振打(da)系統的振打(da),使(shi)沉積在(zai)(zai)陰陽電(dian)(dian)(dian)極上的粉(fen)塵(chen)(chen)振落,進入(ru)集灰斗通(tong)過排(pai)灰裝置排(pai)出。
要想讓含塵氣體更為均勻(yun)地進(jin)入到(dao)電場當(dang)中,所以在(zai)臥(wo)式電除(chu)塵器(qi)當(dang)中,在(zai)進(jin)入設備(bei)時內按需(xu)設置一至三道(dao)氣流(liu)(liu)分布板(ban)和(he)導流(liu)(liu)板(ban),這樣可以讓氣流(liu)(liu)分布更為均勻(yun),從而實現(xian)良好的效果,并且(qie)還不(bu)容(rong)易出(chu)現(xian)堵孔(kong)等問題。
臥式電除(chu)塵器優勢
(1)初期除(chu)塵效率能達到99%,能捕集1um以下的細微(wei)粉塵,但從經濟方面(mian)考慮(lv),一般(ban)控(kong)制一個合理的除(chu)塵效率。
(2)處理煙氣量大,可(ke)用于高溫(可(ke)高達500℃)、高壓和高濕(相對(dui)濕度(du)可(ke)達100%)的(de)場合,能連續運轉,并能實現自動化。
(3)具有低阻的特點,電除(chu)塵器壓力損失僅(jin)200~500Pa。
(4)靜(jing)電除(chu)塵器運行(xing)(xing)費用低 , 靜(jing)電除(chu)塵器運行(xing)(xing)穩定, 故障率極(ji)低;
應用(yong)范圍
對酸霧(wu)、有(you)毒重金屬以(yi)及(ji)PM10,尤其是PM2.5的微細粉塵(chen)有(you)良(liang)好的聯合脫除效果,對于減(jian)少燃煤(mei)鍋爐、鋼鐵燒結機(ji)、玻(bo)璃爐窯、煤(mei)炭化等多行(xing)業的粉塵(chen)排放(fang)量,減(jian)少大氣污染,減(jian)低(di)霧(wu)霾天氣機(ji)率,具有(you)良(liang)好的效果。適(shi)用于電廠燃煤(mei)鍋爐、有(you)色治金爐窯、玻(bo)璃生(sheng)產(chan)(chan)爐窯、水泥生(sheng)產(chan)(chan)爐窯、化工生(sheng)產(chan)(chan)線、紡織生(sheng)產(chan)(chan)線、及(ji)其它(ta)行(xing)業等經脫硫(liu)、脫硝后含(han)PM2.5、氣溶膠、酸霧(wu)霧(wu)滴(di)煙氣的處理(li)。