電(dian)捕焦油器與機械除焦油器相比(bi)，具(ju)有捕焦油效率高、阻(zu)力損失小、氣(qi)體處理(li)量大等(deng)特點．不僅(jin)可(ke)保證(zheng)后續工序對氣(qi)體質量的要求．提高產品回收(shou)率，而且可(ke)明顯(xian)改善操作(zuo)環境(jing)。

按電(dian)(dian)場(chang)理論， 正離子(zi)吸(xi)(xi)附(fu)(fu)于(yu)(yu)帶負電(dian)(dian)的(de)(de)(de)電(dian)(dian)暈(yun)極(ji)(ji)，負離子(zi)吸(xi)(xi)附(fu)(fu)于(yu)(yu)帶正電(dian)(dian)的(de)(de)(de)沉(chen)淀(dian)(dian)(dian)極(ji)(ji)；所(suo)有被電(dian)(dian)離的(de)(de)(de)正負離子(zi)均(jun)充滿電(dian)(dian)暈(yun)極(ji)(ji)與沉(chen)淀(dian)(dian)(dian)極(ji)(ji)之間的(de)(de)(de)整個空間。當含焦(jiao)(jiao)油(you)霧滴等雜質(zhi)(zhi)的(de)(de)(de)煤(mei)氣通(tong)(tong)過(guo)該電(dian)(dian)場(chang)時(shi)，吸(xi)(xi)附(fu)(fu)了負離子(zi)和(he)電(dian)(dian)子(zi)的(de)(de)(de)雜質(zhi)(zhi)在電(dian)(dian)場(chang)庫倫(lun)力(li)的(de)(de)(de)作用(yong)下(xia)，移動到(dao)沉(chen)淀(dian)(dian)(dian)極(ji)(ji)后釋(shi)放出(chu)(chu)所(suo)帶電(dian)(dian)荷，并(bing)吸(xi)(xi)附(fu)(fu)于(yu)(yu)沉(chen)淀(dian)(dian)(dian)極(ji)(ji)上，從而達到(dao)凈化氣體的(de)(de)(de)目(mu)的(de)(de)(de)，通(tong)(tong)常稱為荷電(dian)(dian)現象。當吸(xi)(xi)附(fu)(fu)于(yu)(yu)沉(chen)淀(dian)(dian)(dian)極(ji)(ji)上的(de)(de)(de)雜質(zhi)(zhi)量增加到(dao)大于(yu)(yu)其附(fu)(fu)著力(li)時(shi)，會自動向下(xia)流趟，從電(dian)(dian)捕(bu)焦(jiao)(jiao)油(you)器底(di)部(bu)排出(chu)(chu)，凈氣體則(ze)從電(dian)(dian)捕(bu)焦(jiao)(jiao)油(you)器上部(bu)離開并(bing)進(jin)入(ru)下(xia)道工(gong)序。

石油化(hua)工、瀝青煙氣、焦煉化(hua)工、動植物油提(ti)煉等油煙油霧產生(sheng)的企業。