電(dian)(dian)(dian)極(ji)糊是(shi)一種(zhong)以煅燒無煙煤、煅燒石(shi)(shi)油焦、石(shi)(shi)墨粉為(wei)主要(yao)原(yuan)材(cai)(cai)料(liao)(liao)，以煤瀝青(qing)為(wei)粘結(jie)劑，經模具成型(xing)的(de)一種(zhong)碳(tan)素材(cai)(cai)料(liao)(liao)，是(shi)供給鐵合金(jin)爐、電(dian)(dian)(dian)石(shi)(shi)爐等(deng)電(dian)(dian)(dian)爐設備使用(yong)的(de)導電(dian)(dian)(dian)材(cai)(cai)料(liao)(liao)。電(dian)(dian)(dian)極(ji)糊在礦熱爐內作為(wei)連續自焙(bei)電(dian)(dian)(dian)極(ji)，糊料(liao)(liao)從礦熱爐頂的(de)電(dian)(dian)(dian)極(ji)筒加入(ru)，隨(sui)著電(dian)(dian)(dian)極(ji)筒的(de)下(xia)降溫度逐漸升高，糊料(liao)(liao)開始熔化并(bing)最終(zhong)焙(bei)燒成一根導電(dian)(dian)(dian)電(dian)(dian)(dian)極(ji)，通過電(dian)(dian)(dian)極(ji)尖(jian)端釋放電(dian)(dian)(dian)弧(hu)熔化爐料(liao)(liao)，來(lai)生產鐵合金(jin)、電(dian)(dian)(dian)石(shi)(shi)、黃磷、剛玉及金(jin)屬硅(gui)等(deng)。

由于(yu)電(dian)(dian)(dian)極糊(hu)是依靠礦(kuang)熱(re)爐內的(de)(de)熱(re)量完成焙燒的(de)(de)，因(yin)此，電(dian)(dian)(dian)極的(de)(de)消耗速度(du)與焙燒速度(du)相匹配是電(dian)(dian)(dian)極糊(hu)使(shi)用(yong)(yong)的(de)(de)關鍵。隨著礦(kuang)熱(re)爐技術的(de)(de)發展，礦(kuang)熱(re)爐逐(zhu)步向大型化、密(mi)閉化方向發展，因(yin)此適用(yong)(yong)小(xiao)電(dian)(dian)(dian)爐的(de)(de)標(biao)準糊(hu)逐(zhu)漸(jian)減少，國內基(ji)本(ben)為(wei)(wei)大電(dian)(dian)(dian)爐，電(dian)(dian)(dian)極糊(hu)也多為(wei)(wei)密(mi)閉糊(hu)。把電(dian)(dian)(dian)極糊(hu)裝(zhuang)入(ru)已經安裝(zhuang)在狂熱(re)電(dian)(dian)(dian)爐上的(de)(de)電(dian)(dian)(dian)極筒中，自行焦化燒結為(wei)(wei)電(dian)(dian)(dian)極，其可連續使(shi)用(yong)(yong)，可邊(bian)使(shi)用(yong)(yong)邊(bian)接長、邊(bian)燒結成型。

電(dian)極糊(hu)(hu)(hu)按照使用范圍可分(fen)為(wei)標(biao)準糊(hu)(hu)(hu)和密閉糊(hu)(hu)(hu)。標(biao)準糊(hu)(hu)(hu)：用于(yu)開放(fang)式電(dian)石爐，這種電(dian)極糊(hu)(hu)(hu)以普通煅燒(shao)無(wu)煙煤(mei)、冶(ye)金焦為(wei)主(zhu)要原料(liao)，以中(zhong)溫瀝(li)(li)青做粘結(jie)(jie)劑。具有灰(hui)(hui)分(fen)較高(gao)，電(dian)阻率(lv)較大，燒(shao)結(jie)(jie)速度較慢(man)、但價格低(di)廉的(de)(de)特點(dian)(dian)。密閉糊(hu)(hu)(hu)：用于(yu)密閉礦(kuang)熱(re)爐，這種爐爐面封(feng)閉可以回(hui)收煤(mei)氣，改善勞動(dong)條件(jian)，要求電(dian)極糊(hu)(hu)(hu)有良好的(de)(de)燒(shao)結(jie)(jie)性能。密閉糊(hu)(hu)(hu)一般用普通煅燒(shao)無(wu)煙煤(mei)、人造石墨碎，石油(you)焦為(wei)主(zhu)要原料(liao)，同時煤(mei)瀝(li)(li)青中(zhong)加入一定量的(de)(de)煤(mei)焦油(you)以降低(di)粘結(jie)(jie)劑的(de)(de)軟(ruan)化點(dian)(dian)。它(ta)具有導(dao)電(dian)，導(dao)熱(re)性好，灰(hui)(hui)分(fen)低(di)、燒(shao)結(jie)(jie)速度快、價格昂貴(gui)等特點(dian)(dian)。