目前在電除塵器領域里的電源一共有兩類，一類是恒流電源，一類(lei)是(shi)可(ke)控硅電(dian)源(yuan)。而恒(heng)流電(dian)源(yuan)在冶金行業已經被(bei)廣泛地進行了運(yun)用(yong)。恒(heng)流電(dian)源(yuan)是(shi)將電(dian)壓源(yuan)轉變為電(dian)流源(yuan)的一種供電(dian)方式。恒(heng)流電(dian)源(yuan)的電(dian)路構成(cheng)部(bu)分(fen)為：變換器(qi)、直流高壓發生(sheng)器(qi)以及反饋控制(zhi)三(san)部(bu)分(fen)。

　　運(yun)(yun)用于冶金(jin)行業的(de)(de)(de)(de)恒(heng)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)具(ju)有以下六個特(te)點：(1)投入到(dao)工(gong)作中的(de)(de)(de)(de)變(bian)(bian)(bian)換器組數會(hui)(hui)自(zi)動根(gen)據ESP反饋(kui)的(de)(de)(de)(de)信號(hao)進(jin)行調節。故不管組數怎(zen)么(me)變(bian)(bian)(bian)動，被輸(shu)(shu)送到(dao)ESP上的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)都是不變(bian)(bian)(bian)的(de)(de)(de)(de)，也(ye)就(jiu)是保持恒(heng)定狀(zhuang)態(tai)。(2)當ESP內有出(chu)現(xian)火花的(de)(de)(de)(de)跡象(xiang)(xiang)時(shi)，恒(heng)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)阻抗會(hui)(hui)急(ji)速下降(jiang)，由此輸(shu)(shu)出(chu)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)也(ye)會(hui)(hui)降(jiang)低，即便是在這(zhe)種情況下，電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)還(huan)是穩定而沒有變(bian)(bian)(bian)化(hua)的(de)(de)(de)(de)，這(zhe)樣的(de)(de)(de)(de)方式能(neng)夠抑制(zhi)(zhi)火花的(de)(de)(de)(de)產生。(3)當電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)與輸(shu)(shu)入電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)接近(jin)的(de)(de)(de)(de)時(shi)候(hou)，功率(lv)因數則接近(jin)一(yi)。(4)與電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)源(yuan)(yuan)相(xiang)比，恒(heng)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)能(neng)夠提高電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)運(yun)(yun)行的(de)(de)(de)(de)水平。根(gen)據觀察，恒(heng)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)在輸(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)的(de)(de)(de)(de)時(shi)候(hou)是比普通電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)要(yao)高出(chu)很(hen)(hen)多。所以恒(heng)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)能(neng)夠提高除塵(chen)器的(de)(de)(de)(de)除塵(chen)效率(lv)，使得除塵(chen)效果更為明顯。(5)恒(heng)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)對(dui)于避免(mian)除塵(chen)器的(de)(de)(de)(de)“閉塞(sai)(sai)”現(xian)象(xiang)(xiang)非(fei)(fei)常(chang)明顯。也(ye)能(neng)夠抑制(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)肥(fei)大的(de)(de)(de)(de)現(xian)象(xiang)(xiang)。電(dian)(dian)(dian)(dian)(dian)(dian)除塵(chen)的(de)(de)(de)(de)工(gong)作原理是電(dian)(dian)(dian)(dian)(dian)(dian)粒子(zi)(zi)在電(dian)(dian)(dian)(dian)(dian)(dian)場中移動，進(jin)行除塵(chen)。而電(dian)(dian)(dian)(dian)(dian)(dian)暈電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)屬于位移電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)類型，當電(dian)(dian)(dian)(dian)(dian)(dian)場中的(de)(de)(de)(de)粉塵(chen)數量(liang)變(bian)(bian)(bian)得非(fei)(fei)常(chang)多的(de)(de)(de)(de)時(shi)候(hou)，這(zhe)將會(hui)(hui)影響到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)離子(zi)(zi)的(de)(de)(de)(de)快速移動，就(jiu)好比交通堵(du)塞(sai)(sai)現(xian)象(xiang)(xiang)，形成電(dian)(dian)(dian)(dian)(dian)(dian)暈的(de)(de)(de)(de)“堵(du)塞(sai)(sai)”。必然的(de)(de)(de)(de)，電(dian)(dian)(dian)(dian)(dian)(dian)除塵(chen)的(de)(de)(de)(de)效果就(jiu)會(hui)(hui)變(bian)(bian)(bian)得很(hen)(hen)不理想，在這(zhe)種情況下就(jiu)需要(yao)增加電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，拉過去帶(dai)電(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)粒子(zi)(zi)。

　　由(you)(you)上述情況(kuang)可以知(zhi)道，恒流電(dian)(dian)(dian)源(yuan)有自動的(de)適(shi)應(ying)性，當(dang)電(dian)(dian)(dian)場中(zhong)的(de)粉塵增加(jia)(jia)時，恒流電(dian)(dian)(dian)源(yuan)會(hui)提高輸出電(dian)(dian)(dian)壓，進而(er)加(jia)(jia)快電(dian)(dian)(dian)場中(zhong)粒子的(de)運行速度，規(gui)避電(dian)(dian)(dian)暈(yun)的(de)“閉塞”現象(xiang)。由(you)(you)于恒流電(dian)(dian)(dian)源(yuan)比傳統電(dian)(dian)(dian)源(yuan)的(de)種種優點，它(ta)在(zai)有色(se)冶(ye)金行業(ye)中(zhong)已經(jing)得到(dao)了非(fei)常廣泛的(de)運用，例如各種冶(ye)煉(lian)廠。

　　冶(ye)煉廠(chang)有(you)兩個燒結(jie)(jie)系統。在(zai)燒結(jie)(jie)的(de)過(guo)(guo)(guo)程(cheng)中會出現(xian)非(fei)常多金(jin)屬粉(fen)塵，而這些粉(fen)塵都(dou)需要進(jin)行(xing)凈化工(gong)藝。凈化的(de)首要步驟是將金(jin)屬粉(fen)塵經過(guo)(guo)(guo)自然沉(chen)(chen)降室，進(jin)行(xing)簡單(dan)的(de)沉(chen)(chen)淀(dian)處(chu)理;接著就進(jin)入(ru)電收(shou)(shou)塵器。根據燒結(jie)(jie)廠(chang)的(de)操作工(gong)表示，HL一(yi)Ⅲ型(xing)恒流(liu)電源(yuan)在(zai)運行(xing)的(de)過(guo)(guo)(guo)程(cheng)中具有(you)很高的(de)穩定性，它所運行(xing)的(de)電壓一(yi)直都(dou)能夠符合制(zhi)作工(gong)藝的(de)需求。而且恒流(liu)電源(yuan)在(zai)操作方(fang)面非(fei)常便捷安(an)全，而且在(zai)進(jin)行(xing)維修的(de)時(shi)候(hou)也十(shi)分方(fang)便，且與一(yi)般的(de)電流(liu)相比具有(you)更低的(de)故障發生(sheng)率(lv)。在(zai)除塵的(de)過(guo)(guo)(guo)程(cheng)中，收(shou)(shou)塵效率(lv)高，使得(de)操作工(gong)人的(de)勞動強度得(de)到(dao)了(le)大大的(de)降低。