I-graphite electrode ibhekisela ku-petroleum coke, i-coke yenaliti njengento eluhlaza, itiyela lamalahle lezinto zokunamathisela, ngemva kokuba impahla eluhlaza calcined, ukugaya ephukile, ukuxuba, ukuxova, ukubumba, calcination, impregnation, graphite kanye processing mechanical futhi ezenziwe uhlobo lokushisa eliphezulu ukumelana graphite conductive material, okubizwa ngokuthi i-artificial graphite electrographite ukuhlukanisa kusuka ku-graphite yemvelo njengokulungiswa kwezinto ezingavuthiwe ze-electrode ye-graphite yemvelo. Ngokwenkomba yekhwalithi yayo, ingahlukaniswa ibe amandla avamile e-graphite electrode, i-electrode enamandla amakhulu e-graphite kanye ne-ultra-high power graphite electrode.
I-electrode ye-graphite yamandla aphezulu yenziwe ngekhwalithi ephezulu ye-petroleum coke (noma i-coke yenaliti yezinga eliphansi) ukukhiqizwa, ngezinye izikhathi umzimba we-electrode udinga ukukhulelwa, izakhiwo zawo zomzimba nezomshini ziphakeme kune-electrode evamile ye-graphite yamandla, njenge-resistivity ephansi, okuvumela ukuminyana okukhulu kwamanje.
I-electrode ye-graphite yamandla aphezulu ivumela ukusetshenziswa kokuminyana kwamanje kwe-electrode ye-graphite engu-18 ~ 25A/cm2, esetshenziswa kakhulu ekwenzeni insimbi yesithando somlilo se-arc.
Ukwenza insimbi yesithando somlilo ngumsebenzisi omkhulu wama-graphite electrode. Ukukhishwa kwensimbi ye-eAF eShayina kubala cishe u-18% wokukhishwa kwensimbi engahluziwe, kanti i-electrode yegraphite esetshenziswa ekwenzeni insimbi ibalelwa ku-70% ~ 80% yenani eliphelele le-graphite electrode. Ukwenza insimbi yesithando somlilo kagesi ukusetshenziswa kwe-graphite electrode esithandweni somlilo, ukusetshenziswa kwamandla kagesi okweqisayo kanye nokushaja phakathi kwe-arc ekhiqizwa umthombo wokushisa ophezulu ukuze kuncibilike.
Isithando somlilo se-arc sisetshenziswa kakhulu ekukhiqizeni i-phosphorus ephuzi yezimboni kanye ne-silicon, njll., isici saso siyingxenye engezansi ye-electrode conductive engcwatshwe esithandweni somlilo, i-arc eyakhiwe ngaphakathi kwesendlalelo sezinto ezibonakalayo, futhi isebenzise ishaja yesithando somlilo ngokwayo kusukela ekuphikisaneni kwamandla okushisa kuya ekushiseni ishaja yomlilo, enye yezinga eliphezulu lamanje elidingekayo -ukusetshenziswa kwe-arc igrafu yokusetshenziswa kwe-silicon yokukhiqiza isithando somlilo. I-electrode ye-graphite imayelana ne-100 kg, Cishe i-40kg ye-graphite electrode iyadingeka ukukhiqiza i-phosphorus ephuzi engu-1t.
Isithando somlilo se-graphitization sokukhiqizwa kwemikhiqizo ye-graphite, isithando somlilo esincibilikisa ingilazi encibilikayo kanye nesithando somlilo sikagesi sokukhiqiza i-silicon carbide singokwesithando sokumelana. Izinto ezisesithandweni kokubili ukumelana nokushisa kanye nento yokushisa. Ngokuvamile, i-electrode ye-graphite conductive ifakwe odongeni lwesithando somlilo ekupheleni kwesithando somlilo, futhi i-electrode ye-graphite isetshenziselwa ukusetshenziswa okungapheli lapha.
I-electrode ye-graphite engenalutho iphinde isetshenziselwe ukucubungula i-crucible ehlukahlukene, isikhunta, isikebhe kanye nomzimba wokushisa neminye imikhiqizo ye-graphite emise okukhethekile. Isibonelo, embonini yengilazi ye-quartz, i-10T ye-graphite electrode billet iyadingeka kuyo yonke i-1T yokukhiqizwa kweshubhu ye-fuse kagesi; I-100kg ye-graphite electrode billet iyadingeka ukukhiqiza isitini se-quartz esingu-1.
Kusukela ekuqaleni kwekota yesine yowezi-2016, ngokukhuthazwa kwezinqubomgomo zenguquko ehlangothini lokuhlinzekwa kwempahla embonini yensimbi nensimbi, ukubhidliza insimbi yaphansi kungazelelwe kube yinto ehamba phambili ekuqedeni umthamo wokukhiqiza ohlehlayo. NgoJanuwari 10, 2017, iphini likaMqondisi weNational Development and Reform Commission lathi emhlanganweni woMkhandlu ka-2017 we-CISA ukuthi yonke imigoqo yaphansi kufanele isuswe ngaphambi kukaJuni 30, 2017. Ngo-2017, umthamo waseChina wensimbi ye-eAF wawungaba amathani ayizigidi ezingu-120, lapho amathani ayizigidi ezingu-86.6 akhiqizwa amathani ayizigidi ezingu-5. Ekupheleni kukaMfumfu wezi-2017, amandla okukhiqiza e-eAF ayengaba amathani ayizigidi ezingama-26.5, okuthi cishe u-30% wawo aqaliswe kabusha. Ethintwe ukuncishiswa komthamo wesithando somlilo esiphakathi, insimbi yesithando somlilo kagesi iqalwa ngenkuthalo, futhi inzuzo yezomnotho yensimbi yesithando somlilo ivelele. Insimbi yesithando somlilo kagesi inesidingo esihle samandla aphezulu kanye ne-ultra-high power graphite electrode, kanye nomdlandla wokuthenga ophezulu.
Ngo-2017, intengo yasekhaya ye-graphite electrode yenyuka, futhi isidingo saphesheya sakhuphuka. Izimakethe zasekhaya neziphesheya kwezilwandle zabuyela ekuchumeni. E-China, ngenxa yokuvunyelwa "kwensimbi yaphansi", ukwanda kwamandla kagesi arc arc, umkhawulo wokukhiqizwa kokuvikelwa kwemvelo kwamabhizinisi ekhabhoni nezinye izici, intengo yasekhaya ye-graphite electrode yenyuka ngo-2017, okubonisa ukuthi imakethe yasekhaya ye-graphite electrode iyashoda. Ngesikhathi esifanayo, ukukhula kwe-graphite electrode yaseChina kubonisa ukuthi isidingo se-electrode yaphesheya kwezilwandle sinamandla. Izwe naphesheya kwezilwandle baye babonisa isidingo esinamandla graphite electrode, imboni namanje in short supply isimo.
Ngakho-ke, ukukhangwa kokutshalwa kwezimali kwemboni yamandla e-graphite electrode kusenamandla.
Ngokuthuthuka kwemboni yensimbi nensimbi yomhlaba wonke, isithando somlilo se-arc kagesi kancane kancane sibe namandla amakhulu, aphezulu kakhulu kanye nokulawula okuzenzakalelayo kwekhompyutha nezinye izici zentuthuko, ukusetshenziswa kwesithando somlilo esinamandla amakhulu kagesi kuyanda, kukhuthaze ukusetshenziswa kwamandla aphezulu we-graphite electrode.
Uma kuqhathaniswa ne-United States, i-Europe, iJapane namanye amazwe athuthukile nezifunda, imboni yaseChina yamandla aphezulu e-graphite electrode yaqala sekwephuzile, ikakhulukazi ithembele ekuthengisweni kwamanye amazwe ekuqaleni, ukukhiqizwa kwamandla aphezulu e-graphite electrode kude nesidingo. Iqhutshwa ukuthuthukiswa kwemboni yensimbi nensimbi kanye nenqubekela phambili yezobuchwepheshe, i-China kancane kancane iye yaphula ukubusa kwezobuchwepheshe emazweni angaphandle, futhi amandla okukhiqiza amandla aphezulu e-graphite electrode aye akhuphuka, futhi izinga lomkhiqizo liye lathuthukiswa ngokushesha. Njengamanje, amandla aphezulu e-graphite electrode akhiqizwa e-China athole imiphumela emihle esithandweni esikhulu se-arc kagesi, futhi zonke izinkomba zokusebenza zomkhiqizo zingafinyelela ezingeni elihamba phambili lamazwe ngamazwe. Imikhiqizo ye-electrode ye-graphite yamandla aphezulu yaseChina ayinikezi nje kuphela imakethe yasekhaya, kodwa futhi nenani elikhulu lokuthunyelwa kwamanye amazwe emazweni angaphandle, isidingo semikhiqizo engenisiwe sincane.
Ukuthuthukiswa kokwenziwa kwensimbi yesithando somlilo kumandla aphezulu kuwumkhuba obalulekile wokuthuthukiswa komkhakha wokwenza insimbi yesithando somlilo kagesi. Esikhathini esizayo, ukukhiqizwa kwe-steelmaking yesithando somlilo wamandla aphezulu kuzokwanda, futhi isidingo saso samandla aphezulu we-graphite electrode sizokhuphuka, sikhuthaze ukukhiqizwa kwamandla aphezulu e-graphite electrode e-China. Amabhizinisi asekhaya aphezulu we-graphite electrode anganweba uchungechunge lwezimboni, enze ucwaningo nokuthuthukiswa kwezinto ezingavuthiwe, futhi akhe imishini yokukhiqiza, enganciphisa ngempumelelo izindleko zebhizinisi futhi ithuthukise inzuzo yokusebenza kwebhizinisi.
Isikhathi sokuthumela: May-31-2022