Inqubo yokukhiqiza izinto zekhabhoni iwubunjiniyela besistimu elawulwa ngokuqinile, ukukhiqizwa kwe-graphite electrode, izinto ezikhethekile zekhabhoni, i-aluminium carbon, izinto ezintsha zekhabhoni ezisezingeni eliphezulu azihlukaniseki nokusetshenziswa kwezinto ezingavuthiwe, okokusebenza, ubuchwepheshe, ukuphathwa kwezinto ezine zokukhiqiza kanye nokuphathelene nokuphathelene. ubuchwepheshe.
I-Raw materials yizici ezibalulekile ezinquma izici eziyisisekelo zezinto ze-carbon, futhi ukusebenza kwezinto ezingavuthiwe kunquma ukusebenza kwe-carbon material ekhiqizwayo.Ukuze kukhiqizwe ama-electrode e-UHP ne-HP graphite, i-coke yenaliti yekhwalithi ephezulu iyisinqumo sokuqala, kodwa futhi ne-asphalt ye-binder yekhwalithi ephezulu, i-asphalt ye-ejenti ekhulelwe.Kodwa kuphela izinto zokusetshenziswa ezisezingeni eliphakeme, ukuntuleka kwemishini, ubuchwepheshe, izici zokuphatha kanye nobuchwepheshe bobunikazi obuhlobene, futhi ayikwazi ukukhiqiza ikhwalithi ephezulu ye-UHP, i-HP graphite electrode.
Lesi sihloko sigxile ezicini zekhwalithi ephezulu yenaliti ye-coke ukuchaza imibono ethile yomuntu siqu, kubakhiqizi bezinaliti ze-coke, abakhiqizi be-electrode, izikhungo zocwaningo lwesayensi okufanele zixoxwe.
Nakuba ukukhiqizwa kwezimboni ze-needle coke e-China sekwephuzile kunokwamabhizinisi angaphandle, sekuthuthuke ngokushesha eminyakeni yamuva futhi sekuqalile ukumila.Ngokuya ngevolumu ephelele yokukhiqiza, ingahlangabezana ngokuyisisekelo nesidingo se-coke yenaliti ye-UHP kanye ne-HP graphite electrode ekhiqizwa amabhizinisi ekhabhoni asekhaya.Kodwa-ke, kusekhona igebe elithile kukhwalithi yenaliti ye-coke uma kuqhathaniswa namabhizinisi angaphandle.Ukushintshashintsha kokusebenza kweqoqo kuthinta isidingo se-coke yenaliti yekhwalithi ephezulu ekukhiqizeni usayizi omkhulu we-UHP ne-HP graphite electrode, ikakhulukazi ayikho icoke yenaliti ehlanganyelwe yekhwalithi ephezulu engahlangabezana nokukhiqizwa kwejoyinti le-graphite electrode.
Amabhizinisi ekhabhoni angaphandle akhiqiza ukucaciswa okukhulu kwe-UHP, i-HP graphite electrode imvamisa iyinketho yokuqala yekhwalithi ephezulu yenaliti ye-petroleum coke njenge-coke yempahla eluhlaza, amabhizinisi ekhabhoni aseJapan nawo asebenzisa uchungechunge lwamalahle yenaliti ye-coke njengento eluhlaza, kodwa kuphela okulandelayo φ Ukucaciswa kwe-600 mm kokukhiqizwa kwe-graphite electrode.Njengamanje, i-coke yenaliti e-China ikakhulukazi iwuchungechunge lwenaliti yamalahle.Ukukhiqizwa kwekhwalithi ephezulu ye-electrode ye-graphite ye-UHP enkulu ngamabhizinisi ekhabhoni kuvame ukuthembela ochungechungeni lwenaliti ye-petroleum enaliti, ikakhulukazi ukukhiqizwa kwekhwalithi ephezulu ehlangene ne-Japanese Suishima oil series series nele coke ye-British HSP yochungechunge lwenaliti njenge-coke yempahla eluhlaza.
Njengamanje, i-coke yenaliti ekhiqizwa amabhizinisi ahlukahlukene ngokuvamile iqhathaniswa nezinkomba zokusebenza kwezentengiselwano ze-coke yenaliti yangaphandle ngezinkomba zokusebenza ezijwayelekile, njengokuqukethwe komlotha, ukuminyana kwangempela, okuqukethwe kwesibabule, okuqukethwe kwe-nitrogen, ukusatshalaliswa kosayizi wezinhlayiyana, i-coefficient yokwandisa ukushisa nokunye. ku.Kodwa-ke, kusenokuntuleka kwamabanga ahlukene okuhlukaniswa kwenaliti ye-coke uma kuqhathaniswa namazwe angaphandle.Ngakho-ke, ukukhiqizwa kwenaliti ye-coke colloquially futhi "yezimpahla ezihlanganisiwe", akukwazi ukukhombisa izinga eliphezulu lekhwalithi yenaliti ye-premium coke.
Ngokungeziwe ekuqhathaniseni okujwayelekile kokusebenza, amabhizinisi ekhabhoni kufanele futhi anake ukucaciswa kwe-coke yenaliti, njengokuhlukaniswa kwe-thermal expansion coefficient (CTE), amandla ezinhlayiyana, i-anisotropy degree, idatha yokunwetshwa esimweni esingavinjelwe kanye nesimo esivinjelwe, kanye izinga lokushisa phakathi kokunwetshwa nokufinyela.Ngenxa yokuthi lezi zakhiwo ezishisayo ze-needle coke zibaluleke kakhulu ekulawuleni inqubo ye-graphitization ekukhiqizeni i-graphite electrode, yiqiniso, ithonya lezakhiwo ezishisayo ze-asphalt coke ezakhiwe ngemva kokuwoswa kwe-binder kanye ne-asphalt ye-agent impregnating ayifakiwe.
1. Ukuqhathaniswa kwe-anisotropy yenaliti coke
(A) Isampula: φ 500 mm UHP umzimba we-electrode we-A domestic carbon factory;
I-coke yenaliti yempahla eluhlaza: Ibanga elisha le-Chemical LPC-U yaseJapane elisha, isilinganiso: 100% ibanga le-LPC-U;Ukuhlaziywa: Isitshalo se-SGL Griesheim;Izinkomba zokusebenza zikhonjiswe kuThebula 1.
(B) Isampula: φ 450 mmHP umzimba we-electrode wemboni yasekhaya yekhabhoni;I-coke yenaliti ye-Raw material: i-coke enaliti yamafutha yefektri yasekhaya, isilinganiso: 100%;Ukuhlaziywa: Isitshalo Sekhabhoni saseShandong Bazan;Izinkomba zokusebenza zikhonjiswe kuThebula 2.
Njengoba kubonakala ekuqhathanisweni kweThebula 1 kanye neThebula 2, izinga le-lPC-U lenaliti ye-coke yezinyathelo ezintsha zamalahle zansuku zonke zine-anisotropy enkulu yezakhiwo ezishisayo, lapho i-anisotropy ye-CTE ingafinyelela ku-3.61 ~ 4.55, futhi i-anisotropy of resistivity nayo inkulu, ifinyelela ku-2.06 ~ 2.25.Ngaphandle kwamandla aguquguqukayo e-coke yenaliti yenaliti yasekhaya angcono kunalawo ekhemikhali entsha yansuku zonke ye-LPC-U yebanga lamalahle enaliti yokulinganisa i-coke.Inani le-anisotropy liphansi kakhulu kunalelo lekhemikhali entsha ye-Daily LPC-U yokukala inaliti yamalahle.
I-Ultra high power graphite electrode production anisotropic degree performance analysis ukulinganisa kwekhwalithi yenalithi ye-coke eluhlaza noma hhayi indlela yokuhlaziya ebalulekile, ubukhulu bezinga le-anisotropy, yiqiniso, futhi libe nomthelela othile ekukhiqizeni i-electrode, izinga i-anisotropy kagesi ukusebenza kokushaqeka okushisayo okwedlulele kunedigri ye-anisotropy yamandla amaphakathi we-electrode encane kuhle.
Njengamanje, ukukhiqizwa kwe-coke yenaliti yamalahle kukhulu kakhulu kune-petroleum needle coke.Ngenxa yezindleko zempahla eluhlaza kanye nentengo yamabhizinisi ekhabhoni, kunzima ukusebenzisa i-coke yenaliti yasekhaya engu-100% ekukhiqizeni i-electrode ye-UHP, kuyilapho wengeza ingxenye ethile ye-coke ye-petroleum ehlanganisiwe ne-graphite powder ukukhiqiza i-electrode.Ngakho-ke, kunzima ukuhlola i-anisotropy ye-coke yenaliti yasekhaya.
2. Izici zomugqa kanye nevolumu ye-coke yenaliti
Ukusebenza kokuguqulwa kwe-linear kanye ne-volumetric ye-needle coke kubonakala ikakhulukazi kwinqubo ye-graphite ekhiqizwa yi-electrode.Ngokushintsha kwezinga lokushisa, i-coke yenaliti izobhekana nokunwetshwa okuqondile kanye ne-volumetric ngesikhathi senqubo yenqubo ye-graphite yokushisa, okuthinta ngokuqondile ukuguqulwa komugqa kanye ne-volumetric ye-billet ethosiwe ye-electrode enqubweni ye-graphite.Lokhu akufani nokusetshenziswa kwezakhiwo ezahlukene ze-coke eluhlaza, amamaki ahlukene wezinguquko zenaliti ye-coke.Ngaphezu kwalokho, izinga lokushisa lokushintsha kwemigqa kanye nevolumu yamabanga ahlukene enaliti coke kanye ne-calcined petroleum coke nalo lihlukile.Kuphela ngokukwazi kahle lesi sici se-coke eluhlaza singakwazi ukulawula kangcono futhi nokwandisa ukukhiqizwa kokulandelana kwamakhemikhali e-graphite.Lokhu kubonakala ikakhulukazi ohlelweni lwe-graphitization yochungechunge.
Ithebula lesi-3 libonisa izinguquko zomugqa kanye nevolumu kanye namazinga okushisa amabanga amathathu e-petroleum yenaliti coke akhiqizwa yi-Conocophilips e-UK.Ukunwetshwa komugqa kwenzeka kuqala lapho inaliti ye-coke kawoyela iqala ukushisa, kodwa izinga lokushisa ekuqaleni kokufinyela komugqa ngokuvamile lisilela ngemuva kwezinga lokushisa eliphezulu lokubala.Ukusuka ku-1525 ℃ kuya ku-1725 ℃, ukunwetshwa komugqa kuyaqala, futhi izinga lokushisa lokufinyela kwawo wonke umugqa lincane, lingu-200℃ kuphela.Izinga lokushisa lokufinyela kwawo wonke umugqa we-petroleum coke evamile elibaziseke likhulu kakhulu kunalelo le-coke yenaliti, futhi i-coke yenaliti yamalahle iphakathi kokubili, inkulu kancane kune-coke yenaliti yenaliti.Imiphumela yokuhlolwa ye-Osaka Industrial Technology Test Institute eJapane ibonisa ukuthi ukusebenza okushisayo kwe-coke kubi kakhulu, izinga lokushisa lomugqa liyancipha, lifike ku-500 ~ 600℃ izinga lokushisa lomugqa wokuncipha, futhi ukuqala komugqa wokuncipha kwezinga lokushisa liphansi. , ngo-1150 ~ 1200℃ kwaqala ukwenzeka ukuncipha komugqa, okubuye kube izici ze-coke ye-petroleum ebambezelekile evamile.
Ukuba ngcono kwezindawo ezishisayo kanye nokukhula kwe-anisotropy yenaliti ye-coke, kuyancipha izinga lokushisa lokufinyela komugqa.I-coke enaliti kawoyela yekhwalithi ephezulu ingu-100 ~ 150℃ kuphela umugqa wokushisa wokufinyela womugqa.Kuzuzisa kakhulu ukuthi amabhizinisi ekhabhoni aqondise ukukhiqizwa kwenqubo ye-graphitization ngemva kokuqonda izici zokunwetshwa komugqa, ukufinyezwa kanye nokwandiswa kabusha kwe-coke yezinto ezingavuthiwe ezihlukahlukene, okungagwema eminye imikhiqizo engadingekile yemfucuza engadingekile ebangelwa ukusebenzisa imodi yendabuko yokuhlangenwe nakho.
3 isiphetho
Kahle kahle izici ezihlukahlukene zezinto zokusetshenziswa, khetha ukufanisa imishini efanele, inhlanganisela enhle yobuchwepheshe, futhi ukuphathwa kwebhizinisi kungokwesayensi futhi kunengqondo, lolu chungechunge lwenqubo yonke yenqubo elawulwa ngokuqinile futhi ezinzile, kungashiwo ukuthi kunesisekelo sokukhiqiza okuphezulu- amandla aphezulu aphezulu, amandla aphezulu e-graphite electrode.
Isikhathi sokuthumela: Dec-30-2021