Kwa mitundu yosiyanasiyana ya zinthu za carbon ndi graphite electrode, malinga ndi ntchito zawo zosiyanasiyana, pali zofunikira zapadera zogwiritsira ntchito ndi zizindikiro za khalidwe.Poganizira za mtundu wa zipangizo zomwe ziyenera kugwiritsidwa ntchito pa chinthu china, choyamba tiyenera kuphunzira momwe tingakwaniritsire zofunikira izi ndi zizindikiro za khalidwe.
(1) Kusankhidwa kwa zipangizo zopangira ma electrode a graphite omwe amagwiritsidwa ntchito mu electrometallurgical process monga EAF steelmaking.
The conductive graphite elekitirodi ntchito electrometallurgical ndondomeko monga EAF steelmaking ayenera madutsidwe wabwino, mphamvu mawotchi oyenerera, kukana zabwino kuzimitsa ndi Kutentha pa kutentha, kukana dzimbiri ndi otsika zonyansa zili.
① Ma electrode apamwamba kwambiri a graphite amapangidwa kuchokera ku petroleum coke, pitch coke ndi zida zina zotsika phulusa.Komabe, kupanga ma elekitirodi a graphite kumafunikira zida zambiri, kuyenda kwautali wautali komanso ukadaulo wovuta, komanso kugwiritsa ntchito mphamvu kwa 1 t graphite elekitirodi ndi 6000 ~ 7000 kW · H.
② Anthracite wapamwamba kwambiri kapena coke metallurgical amagwiritsidwa ntchito ngati zopangira kupanga carbon electrode.Kupanga ma elekitirodi a kaboni sikufuna zida za graphitization, ndipo njira zina zopangira ndizofanana ndi kupanga ma elekitirodi a graphite.Ma conductivity a carbon electrode ndi oipa kwambiri kuposa ma electrode a graphite.Resistivity ya carbon electrode nthawi zambiri imakhala yokwera 2-3 kuposa ya electrode ya graphite.Phulusa la phulusa limasiyanasiyana ndi mtundu wa zipangizo, zomwe zimakhala pafupifupi 10%.Koma mutatha kuyeretsa mwapadera, phulusa la anthracite likhoza kuchepetsedwa mpaka 5%.Phulusa la mankhwalawa likhoza kuchepetsedwa kufika pa 1.0% ngati mankhwalawo apangidwanso ndi graphitized.Mpweya electrode angagwiritsidwe ntchito kusungunula wamba EAF zitsulo ndi ferroalloy
③ Pogwiritsa ntchito ma graphite achilengedwe monga zopangira, ma elekitirodi achilengedwe a graphite adapangidwa.Ma graphite achilengedwe angagwiritsidwe ntchito pokhapokha atasankhidwa mosamala ndipo phulusa lake limachepetsa.The resistivity wa chilengedwe graphite elekitirodi pafupifupi kuwirikiza kawiri ma electrode graphitized.Koma mphamvu zamakina ndizochepa, zosavuta kuswa mukamagwiritsa ntchito.M'dera lomwe lili ndi ma graphite ambiri achilengedwe, ma elekitirodi achilengedwe a graphite amatha kupangidwa kuti apereke EAF yaying'ono kuti isungunuke chitsulo wamba EAF.Mukamagwiritsa ntchito ma graphite achilengedwe kupanga elekitirodi yoyendetsa, zida ndi ukadaulo ndizosavuta kuthetsa komanso kuchita bwino.
④ Ma elekitirodi a graphite amagwiritsidwa ntchito kupanga elekitirodi yopangidwanso (kapena ma elekitirodi osweka) mwa kuphwanya ndikupera zinyalala kapena zinyalala.Phulusa la mankhwalawa silokwera (pafupifupi 1%), ndipo madulidwe ake ndi oipa kuposa a electrode ya graphitized.Kulimbana kwake kumakhala pafupifupi nthawi 1.5 ya electrode ya graphitized, koma zotsatira zake zimakhala zabwino kuposa za electrode yachilengedwe ya graphite.Ngakhale kuti n'zosavuta kuti adziwe luso ndi zipangizo kubala regenerated elekitirodi, zopangira gwero la graphitization ndi malire, kotero njira imeneyi si chitukuko malangizo.
Nthawi yotumiza: Jun-11-2021