1. IZINTO EZIQAQWAYO
I-Coke (malunga ne-75-80% kumxholo)
Petroleum Coke
I-petroleum coke yeyona nto ibalulekileyo ekrwada, kwaye yenziwa kuluhlu olubanzi lwezakhiwo, ukusuka kwinaliti ene-anisotropic kakhulu ukuya kwicoke ephantse ibe yi-isotropic fluid.I-anisotropic yenaliti ye-coke ye-anisotropic kakhulu, ngenxa yokwakheka kwayo, iyimfuneko ekwenzeni i-electrode ephezulu yokusebenza esetyenziswa kwiziko zombane ze-arc, apho kufuneka iqondo eliphezulu kakhulu lombane, oomatshini kunye nomthamo wokuthwala i-thermal.I-petroleum coke iphantse yaveliswa ngokukodwa yinkqubo yokupheka ilibazisekile, eyinkqubo ethambileyo yokucotha kwecarboning yeentsalela ze-oyile ekrwada.
Inaliti coke ligama elisetyenziswa ngokuqhelekileyo kuhlobo olulodwa lwecoke enomfanekiso ophezulu kakhulu wento ephuma kungqameko olululo olukhethwayo olunxuseneyo lwesakhiwo sayo somaleko we-turbostratic kunye nokumila okubonakalayo kweenkozo.
Izibophelelo (malunga ne-20-25% kumxholo)
Itha yetha yamalahle
Ii-arhente zokubopha zisetyenziselwa ukudibanisa amasuntswana aqinileyo omnye komnye.Ubuchule babo bokumanzisa obuphezulu buguqula umxube ube yimeko yeplastiki yokubumba okanye ukukhutshwa okulandelayo.
Itha yetha yelahle iyinto ephilayo kwaye inesakhiwo esinevumba elahlukileyo.Ngenxa yobungakanani bayo obuphezulu bezangqa zebenzene ezifakwe endaweni kunye neziconsisiweyo, sele inesakhiwo selattice esinehexagonal esilungiselelwe ngokucacileyo segraphite, ngaloo ndlela iququzelela ukusekwa kweendawo ezicwangciswe kakuhle zegraphic ngexesha legraphitisation.I-pitch ingqineke isesona sibophelelo sinenzuzo.Yintsalela yokukhutshwa kwetha yamalahle.
2. UKUHLANGANISA NOKUKHUTSHWA
I-coke egayiweyo ixutywa ne-coal tar pitch kunye nezinye izongezo ukwenza intlama efanayo.Oku kuziswe kwi-cylinder ye-extrusion.Kwinqanaba lokuqala umoya kufuneka ususwe ngokucinezela kwangaphambili.Kunokuba inyathelo lokwenyani extrusion ilandela apho umxube extruded ukwenza electrode of ububanzi olufunwayo kunye nobude.Ukwenza ukuxuba kwaye ngokukodwa inkqubo ye-extrusion (jonga umfanekiso ekunene) umxube kufuneka ube ne-viscous.Oku kuphunyezwa ngokuyigcina kwiqondo lobushushu elinyukileyo le-approx.I-120 ° C (kuxhomekeke kwi-pitch) ngexesha lenkqubo yokuvelisa uhlaza.Le fomu eyisiseko enemilo ye-cylindrical yaziwa ngokuba yi "electrode eluhlaza".
3. UKUBHEKA
Zimbini iindidi zeziko lokubhaka ezisetyenziswayo:
Apha iintonga ezikhutshiweyo zifakwe kwi-cylindrical stainless steel canisters (saggers).Ukuze ugweme i-deformation ye-electrodes ngexesha lokufudumala, i-saggers nayo izaliswe ngokugubungela isigqubuthelo sesanti.I-saggers ilayishwa kwiiplatifti zeenqwelo zikaloliwe (ezisezantsi zemoto) kwaye ziqengqeleke kwirhasi yendalo - izibane ezibasiweyo.
Isithando somlilo
Apha ii-electrode zibekwe kwindawo efihlakeleyo yelitye ezantsi kweholo yemveliso.Lo mngxuma uyinxalenye ye-ring system yamagumbi angaphezu kwe-10.Amagumbi adityaniswe kunye nenkqubo yokujikeleza komoya oshushu ukugcina amandla.I-voids phakathi kwee-electrodes nazo zizaliswe ngesanti ukuphepha ukuguqulwa.Ngethuba lenkqubo yokubhaka, apho i-pitch i-carbonized, iqondo lokushisa kufuneka lilawulwe ngokucokisekileyo kuba kumaqondo okushisa ukuya kuma-800 ° C ukwakhiwa kwegesi ngokukhawuleza kunokubangela ukuqhekeka kwe-electrode.
Kwesi sigaba i-electrodes inoxinano malunga ne-1,55 - 1,60 kg / dm3.
4. UKUKHULELWA
I-electrodes ebhakiweyo ifakwe kwi-pitch ekhethekileyo (i-liquid pitch kwi-200 ° C) ukubanika ubuninzi obuphezulu, amandla omatshini, kunye nokuhanjiswa kombane baya kuyidinga ukumelana neemeko ezinzima zokusebenza ngaphakathi kwezithando.
5. UKUBHEKA KWAKHONA
Umjikelo wesibini wokubhaka, okanye "ukubhaka kwakhona," kuyafuneka ukuze kufakwe i-carbonize kwi-pitch impregnation kunye nokugxotha nayiphi na i-volatiles eseleyo.Iqondo lobushushu lokutshisa kwakhona lifikelela phantse kuma-750°C.Kwesi sigaba i-electrodes inokufikelela kubuninzi obujikeleze i-1,67 - 1,74 kg / dm3.
6. UKUDLA
Acheson Furnace
Inyathelo lokugqibela lokwenziwa kwegraphite kukuguqulwa kwekhabhoni ebhakiweyo ibe yigraphite, ebizwa ngokuba yigraphitizing.Ngethuba lenkqubo ye-graphitizing, i-carbon engaphezulu okanye engaphantsi kwe-odolo yangaphambili (i-turbostratic carbon) iguqulwa ibe yi-dimensionally ordered graphite structure.
Ii-electrode zipakishwe kwiziko lombane elijikelezwe ngamasuntswana ekhabhoni ukwenza ubunzima obuqinileyo.Umsinga wombane ugqithiswa kwiziko, unyusa ubushushu bufikelele malunga ne-3000°C.Le nkqubo idla ngokufezekiswa kusetyenziswa i-ACHESON FURNACE okanye i-LENGTHWISE FURNACE (LWG).
Ngesithando somlilo se-Acheson i-electrodes i-graphitized usebenzisa inkqubo yebhetshi, ngelixa kwisithando somlilo se-LWG yonke ikholamu i-graphitized ngaxeshanye.
7. UKUSEBENZA
I-electrodes yegraphite (emva kokupholisa) yenziwe ngoomatshini ngokwemilinganiselo echanekileyo kunye nokunyamezela.Eli nqanaba linokuthi libandakanye ukwenziwa kwe-machining kunye nokufaka iziphelo (iziseko) ze-electrode kunye nepini yegraphite enemisonto (ingono) yokujoyina.
Ixesha lokuposa: Apr-08-2021