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石墨电极糊

电(dian)(dian)(dian)(dian)(dian)极糊是一种以煅(duan)烧(shao)无烟煤、煅(duan)烧(shao)石油焦、石墨粉(fen)为(wei)主要原(yuan)材(cai)料(liao)(liao),以煤沥(li)青为(wei)粘结剂,经模具成型(xing)的一种碳素材(cai)料(liao)(liao),是供给铁(tie)合金(jin)(jin)炉(lu)、电(dian)(dian)(dian)(dian)(dian)石炉(lu)等(deng)电(dian)(dian)(dian)(dian)(dian)炉(lu)设备使用的导电(dian)(dian)(dian)(dian)(dian)材(cai)料(liao)(liao)。电(dian)(dian)(dian)(dian)(dian)极糊在矿热(re)炉(lu)内(nei)作(zuo)为(wei)连(lian)续自焙(bei)电(dian)(dian)(dian)(dian)(dian)极,糊料(liao)(liao)从矿热(re)炉(lu)顶(ding)的电(dian)(dian)(dian)(dian)(dian)极筒加(jia)入,随(sui)着电(dian)(dian)(dian)(dian)(dian)极筒的下降温度逐渐升高,糊料(liao)(liao)开始熔化(hua)并最终(zhong)焙(bei)烧(shao)成一根导电(dian)(dian)(dian)(dian)(dian)电(dian)(dian)(dian)(dian)(dian)极,通过(guo)电(dian)(dian)(dian)(dian)(dian)极尖(jian)端(duan)释(shi)放电(dian)(dian)(dian)(dian)(dian)弧熔化(hua)炉(lu)料(liao)(liao),来(lai)生产铁(tie)合金(jin)(jin)、电(dian)(dian)(dian)(dian)(dian)石、黄磷(lin)、刚玉及金(jin)(jin)属硅(gui)等(deng)。

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电(dian)极(ji)(ji)糊是(shi)一(yi)种以煅(duan)烧无烟煤(mei)(mei)、煅(duan)烧石(shi)油焦(jiao)、石(shi)墨粉为(wei)主要原(yuan)材料,以煤(mei)(mei)沥青为(wei)粘结剂,经模具(ju)成(cheng)型的(de)一(yi)种碳素材料,是(shi)供给铁合金炉(lu)(lu)(lu)、电(dian)石(shi)炉(lu)(lu)(lu)等(deng)电(dian)炉(lu)(lu)(lu)设备使用(yong)的(de)导(dao)电(dian)材料。电(dian)极(ji)(ji)糊在矿(kuang)热炉(lu)(lu)(lu)内(nei)作为(wei)连续自(zi)焙(bei)(bei)电(dian)极(ji)(ji),糊料从矿(kuang)热炉(lu)(lu)(lu)顶的(de)电(dian)极(ji)(ji)筒加入,随着电(dian)极(ji)(ji)筒的(de)下(xia)降温(wen)度(du)逐渐升高,糊料开始熔(rong)化(hua)并最终焙(bei)(bei)烧成(cheng)一(yi)根导(dao)电(dian)电(dian)极(ji)(ji),通过电(dian)极(ji)(ji)尖端(duan)释放(fang)电(dian)弧熔(rong)化(hua)炉(lu)(lu)(lu)料,来生产铁合金、电(dian)石(shi)、黄磷、刚玉及(ji)金属硅(gui)等(deng)。

由于电(dian)(dian)(dian)极(ji)糊(hu)(hu)是(shi)依靠矿热炉内的热量(liang)完成(cheng)焙烧(shao)(shao)的,因此,电(dian)(dian)(dian)极(ji)的消(xiao)耗(hao)速度与焙烧(shao)(shao)速度相匹配是(shi)电(dian)(dian)(dian)极(ji)糊(hu)(hu)使用的关键。随着矿热炉技术的发展,矿热炉逐步向(xiang)大型化(hua)(hua)、密闭(bi)化(hua)(hua)方向(xiang)发展,因此适用小电(dian)(dian)(dian)炉的标准糊(hu)(hu)逐渐(jian)减少,国(guo)内基本为(wei)大电(dian)(dian)(dian)炉,电(dian)(dian)(dian)极(ji)糊(hu)(hu)也多为(wei)密闭(bi)糊(hu)(hu)。把电(dian)(dian)(dian)极(ji)糊(hu)(hu)装入已(yi)经安装在狂(kuang)热电(dian)(dian)(dian)炉上的电(dian)(dian)(dian)极(ji)筒中(zhong),自行焦(jiao)化(hua)(hua)烧(shao)(shao)结(jie)为(wei)电(dian)(dian)(dian)极(ji),其可连续使用,可边(bian)(bian)使用边(bian)(bian)接长、边(bian)(bian)烧(shao)(shao)结(jie)成(cheng)型。

电(dian)极糊(hu)按照(zhao)使(shi)用范围可分为(wei)标(biao)准(zhun)糊(hu)和密闭糊(hu)。标(biao)准(zhun)糊(hu):用于开放式电(dian)石炉,这(zhei)种电(dian)极糊(hu)以普通煅烧(shao)(shao)无(wu)烟(yan)煤、冶(ye)金焦为(wei)主(zhu)要原(yuan)料(liao),以中温沥(li)青(qing)做粘(zhan)结剂(ji)。具有灰分较高(gao),电(dian)阻率较大,烧(shao)(shao)结速(su)度较慢(man)、但(dan)价格低廉的(de)特点。密闭糊(hu):用于密闭矿(kuang)热炉,这(zhei)种炉炉面封(feng)闭可以回收煤气,改(gai)善劳动条件,要求电(dian)极糊(hu)有良(liang)好(hao)的(de)烧(shao)(shao)结性(xing)能。密闭糊(hu)一般(ban)用普通煅烧(shao)(shao)无(wu)烟(yan)煤、人(ren)造石墨碎(sui),石油焦为(wei)主(zhu)要原(yuan)料(liao),同时(shi)煤沥(li)青(qing)中加入一定量的(de)煤焦油以降低粘(zhan)结剂(ji)的(de)软化点。它具有导电(dian),导热性(xing)好(hao),灰分低、烧(shao)(shao)结速(su)度快、价格昂贵等特点。

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