Ma electrode a graphite ndi gawo lofunika kwambiri pakupanga zitsulo za EAF, koma amangowerengera gawo laling'ono chabe la mtengo wopanga zitsulo. Zimatengera 2 kg ya ma electrode a graphite kuti apange tani imodzi yachitsulo.
N’chifukwa chiyani mumagwiritsa ntchito ma electrode a graphite?
Ma electrode a grafiti ndiye chotenthetsera chachikulu cha uvuni wa arc. EAFs ndi njira yosungunula zinyalala kuchokera m'magalimoto akale kapena zida zapakhomo kuti apange chitsulo chatsopano.
Mtengo wopangira ng'anjo yamagetsi ndi wotsika kuposa mtengo wa ng'anjo yachikhalidwe yophulika. Ng'anjo yachikhalidwe yophulika imapanga chitsulo kuchokera ku chitsulo ndipo imagwiritsa ntchito malasha ngati mafuta. Komabe, mtengo wopangira chitsulo ndi wokwera ndipo kuipitsa chilengedwe ndi kwakukulu. Komabe, EAF IMAGWIRITSA NTCHITO zitsulo zotsalira ndi magetsi, zomwe sizikhudza chilengedwe.
Ma electrode a graphite amagwiritsidwa ntchito kusonkhanitsa ma electrode ndi chivundikiro cha ng'anjo kuti zikhale zonse, ndipo ma electrode a graphite amatha kuyendetsedwa mmwamba ndi pansi. Kenako mphamvu yamagetsi imadutsa mu electrode, ndikupanga arc yotentha kwambiri yomwe imasungunula chitsulo chotsala. Ma electrode amatha kukhala ndi mainchesi 800mm (2.5ft) m'mimba mwake ndi kutalika kwa 2800mm (9ft). Kulemera kwakukulu kumaposa matani awiri.
Kugwiritsa ntchito ma elekitirodi a graphite
Zimatengera makilogalamu awiri (mapaundi 4.4) a ma electrode a graphite kuti apange tani imodzi ya chitsulo.
Kutentha kwa graphite elekitirodi
Nsonga ya elekitirodiyo idzafika madigiri 3,000 Celsius, theka la kutentha kwa pamwamba pa dzuwa. Elekitirodiyo imapangidwa ndi graphite, chifukwa graphite yokha ndi yomwe imatha kupirira kutentha kotere.
Kenako tembenuzani uvuniwo mbali yake ndikutsanulira chitsulo chosungunukacho m'migolo ikuluikulu. Kenako chikhocho chimapereka chitsulo chosungunukacho ku chotsukira cha mphero yachitsulo, chomwe chimasintha zidutswa zobwezerezedwanso kukhala chinthu chatsopano.
Ma electrode a grafiti amagwiritsa ntchito magetsi
Njirayi imafuna magetsi okwanira kuti ipereke mphamvu ku tawuni ya anthu 100,000. Mu ng'anjo yamagetsi yamakono, kusungunuka kulikonse kumatenga mphindi 90 ndipo kumatha kupanga matani 150 achitsulo, chokwanira kupanga magalimoto 125.
Zopangira
Needle coke ndiye chinthu chachikulu chomwe chimagwiritsidwa ntchito popanga ma electrode, zomwe zimatenga miyezi itatu mpaka isanu ndi umodzi kuti zipangidwe. Njirayi imaphatikizapo kuwotcha ndi kubwezeretsanso kuti coke isanduke graphite, adatero wopanga.
Pali ma needle coke opangidwa ndi mafuta ndi ma needle coke opangidwa ndi malasha, omwe onse angagwiritsidwe ntchito kupanga ma electrode a graphite. "Pet coke" ndi chinthu chochokera mu njira yoyeretsera mafuta, pomwe malasha ochokera ku coke amapangidwa kuchokera ku phula la malasha lomwe limachitika panthawi yopanga coke.
Nthawi yotumizira: Okutobala-30-2020