1. ZINTHU ZINA
Coke (pafupifupi 75-80% muzinthu)
Mafuta a Coke
Petroleum coke ndiye chinthu chofunikira kwambiri, ndipo amapangidwa m'magulu osiyanasiyana, kuchokera ku singano yamtundu wa anisotropic mpaka pafupifupi isotropic fluid coke.The kwambiri anisotropic singano coke, chifukwa kamangidwe kake, ndi wofunika kwambiri popanga maelekitirodi mkulu-performance ntchito mu ng'anjo magetsi arc, kumene mlingo wapamwamba kwambiri wa magetsi, makina ndi matenthedwe katundu kunyamula mphamvu.Petroleum coke amapangidwa kokha chifukwa cha kuchedwa kophika, komwe ndi njira yochepetsera pang'onopang'ono ya zotsalira za mafuta osakanizika.
Needle coke ndi mawu omwe amagwiritsidwa ntchito nthawi zambiri kutanthauza mtundu wapadera wa coke wokhala ndi luso lojambula kwambiri chifukwa cha kalozera wake wokhazikika wa turbostratic wosanjikiza wake komanso mawonekedwe ake enieni a njerezo.
Zomangira (pafupifupi 20-25% zomwe zili)
Phukusi la malasha
Kumanga wothandizila ntchito agglomerate olimba particles wina ndi mzake.Kuthekera kwawo konyowa kwakukulu motero kumasintha kusakaniza kukhala pulasitiki yamtundu wotsatira kapena kutulutsa.
Phula la phula la malasha ndilopangidwa ndi organic ndipo lili ndi kafungo kake.Chifukwa cha kuchuluka kwake kwa mphete zosinthidwa komanso zopindika za benzene, ili kale ndi mawonekedwe owoneka bwino a hexagonal lattice a graphite, motero amathandizira kupanga madera okonzedwa bwino a graphite panthawi ya graphitisation.Pitch imakhala yothandiza kwambiri.Ndilo chotsalira cha distillation cha phula la malasha.
2. KUSAKANITSA NDI KUCHITSA
Coke yogayidwa imasakanizidwa ndi phula la malasha ndi zina zowonjezera kupanga phala lofanana.Izi zimabweretsedwa mu silinda ya extrusion.Mu sitepe yoyamba mpweya uyenera kuchotsedwa ndi prepressing.Kuposa chenicheni extrusion sitepe amatsatira kumene osakaniza ndi extruded kupanga elekitirodi wa m'mimba mwake ankafuna ndi kutalika.Kuti athe kusanganikirana makamaka njira extrusion (onani chithunzi kumanja) osakaniza ayenera kukhala viscous.Izi zimatheka pozisunga pa kutentha kwa pafupifupi pafupifupi.120 ° C (malingana ndi phula) panthawi yonse yopangira zobiriwira.Mawonekedwe ofunikira awa okhala ndi mawonekedwe a cylindrical amadziwika kuti "green electrode".
3. KUPITA
Mitundu iwiri ya ng'anjo zophikira zikugwiritsidwa ntchito:
Apa ndodo zotuluka zimayikidwa muzitsulo zachitsulo zosapanga dzimbiri (saggers).Pofuna kupewa kusinthika kwa ma electrode panthawi yotentha, ma saggers amadzazidwanso ndi chophimba choteteza mchenga.Ma sagger amanyamulidwa pamapulatifomu a njanji (pansi pagalimoto) ndikugubuduza mu gasi wachilengedwe - ng'anjo zoyaka moto.
Ng'anjo ya mphete
Apa ma elekitirodi amayikidwa mu mwala chobisalira pabowo pansi pa holo kupanga.Khomo ili ndi gawo la dongosolo la mphete la zipinda zopitilira 10.Zipindazi zimagwirizanitsidwa pamodzi ndi makina oyendetsa mpweya wotentha kuti apulumutse mphamvu.Ma voids pakati pa maelekitirodi amadzazidwanso ndi mchenga kuti asawonongeke.Panthawi yophika, pamene phula limakhala la carbonized, kutentha kumayenera kuyendetsedwa mosamala chifukwa pa kutentha mpaka 800 ° C mpweya wothamanga kwambiri ungayambitse kusweka kwa electrode.
Mu gawo ili maelekitirodi ndi kachulukidwe padziko 1,55 - 1,60 makilogalamu/dm3.
4. KUBWEredwa pakati
Maelekitirodi ophika amapangidwa ndi phula lapadera (chitsulo chamadzimadzi pa 200 ° C) kuti awapatse mphamvu zambiri, mphamvu zamakina, ndi mphamvu zamagetsi zomwe zidzafunikire kupirira zovuta zogwirira ntchito mkati mwa ng'anjo.
5. KUPEKAnso
Kuphika kwachiwiri, kapena "kuphikanso," kumafunika kuti mpweya umalowa m'mimba ndikuchotsa zotsalira zilizonse.Kutenthetsanso kutentha kufika pafupifupi 750 ° C.Mu gawo ili ma elekitirodi akhoza kufika kachulukidwe mozungulira 1,67 - 1,74 kg/dm3.
6. KUGWIRITSA NTCHITO
Acheson Furnace
Gawo lomaliza popanga ma graphite ndikutembenuza mpweya wowotcha kukhala graphite, wotchedwa graphitizing.Pa ndondomeko graphitizing, ndi mochuluka kapena zochepa Pre analamula mpweya (turbostratic mpweya) n'kukhala atatu dimensionally analamula graphite dongosolo.
Ma elekitirodi amadzazidwa mu ng'anjo zamagetsi zozunguliridwa ndi tinthu ta carbon kuti tipange misa yolimba.Mphamvu yamagetsi imadutsa mung'anjo, kukweza kutentha kufika pafupifupi 3000 ° C.Izi nthawi zambiri zimatheka pogwiritsa ntchito ng'anjo ya ACHESON kapena NG'ARA YOLALIRA (LWG).
Ndi Acheson ng'anjo ma elekitirodi ndi graphitized ntchito mtanda ndondomeko, pamene LWG ng'anjo ndime lonse ndi graphitized pa nthawi yomweyo.
7. KUCHITA
Ma electrode a graphite (pambuyo pa kuzirala) amapangidwa kuti akhale ndi miyeso yeniyeni ndi kulolerana.Gawoli lingaphatikizeponso kukonza ndikuyika malekezero (mabokosi) a maelekitirodi okhala ndi pini ya graphite (nipple) yolumikizira.
Nthawi yotumiza: Apr-08-2021