Ngokuthuthuka okusheshayo kwezimoto zamandla amasha emhlabeni wonke, isidingo semakethe sezinto ze-lithium battery anode senyuke kakhulu. Ngokwezibalo, ngo-2021, amabhizinisi ayisishiyagalombili aphezulu e-lithium battery anode ahlela ukwandisa umthamo wawo wokukhiqiza afinyelele cishe amathani ayisigidi. I-Graphitization inomthelela omkhulu enkombeni nasezindlekweni zezinto ze-anode. Imishini ye-graphitization e-China inezinhlobo eziningi, ukusetshenziswa kwamandla okuphezulu, ukungcoliswa okukhulu kanye nezinga eliphansi lokuzenzekelayo, elikhawulela ukuthuthukiswa kwezinto ze-graphite anode ngezinga elithile. Kuyinkinga enkulu okufanele ixazululwe ngokushesha ekukhiqizeni izinto ze-anode.
1. Isimo samanje nokuqhathaniswa kwesithando somlilo esibi se-graphitization
1.1 I-Atchison negative graphitization furnace
Ohlotsheni lwesithando somlilo olushintshiwe olusekelwe ku-electrode yendabuko ye-Aitcheson isithando somlilo se-graphitization, isithando somlilo sangempela silayishwa nge-graphite crucible njengesithwali sezinto ezingalungile ze-electrode (i-crucible ilayishwe ngezinto eziluhlaza ze-carbonized negative electrode), umgogodla wesithando somlilo ugcwele izinto zokumelana nokushisa, ungqimba lwangaphandle lwensimbi lugcwele ukufakwa kwesithando somlilo. Ngemuva kokufakwa kukagesi, izinga lokushisa eliphakeme lika-2800 ~ 3000 ℃ likhiqizwa ikakhulukazi ukushiswa kwezinto eziphikisayo, futhi izinto ezingezinhle ku-crucible zishiswa ngokungaqondile ukuze kuzuzwe inking yetshe lokushisa eliphakeme lezinto ezingezinhle.
1.2. Isithando somlilo sochungechunge lokushisa kwangaphakathi
Imodeli yesithando somlilo iyireferensi yesithando somlilo se-serial graphitization esisetshenziselwa ukukhiqizwa kwama-electrode e-graphite, kanye ne-electrode crucible eminingana (elayishwe ngezinto ezingezinhle ze-electrode) ixhunywe ochungechungeni longitudinally. I-electrode crucible iyisithwali kanye nomzimba oshisisayo, futhi owamanje udlula ku-electrode crucible ukuze ukhiqize izinga lokushisa eliphezulu futhi ushisise ngokuqondile impahla yangaphakathi ye-electrode engalungile. Inqubo ye-GRAPHITization ayisebenzisi izinto zokumelana, yenza kube lula ukusebenza kwenqubo yokulayisha nokubhaka, futhi yehlise ukulahleka kwesitoreji sokushisa kwezinto ezimelana, ukonga ukusetshenziswa kwamandla.
1.3 Isithando somlilo sebhokisi legridi
No.1 isicelo siyanda eminyakeni yamuva, okuyinhloko kufundwa Series acheson graphitization esithandweni kanye concatenated ubuchwepheshe izici zesithando graphitizing, esithandweni core yokusebenzisa izingcezu eziningi anode ipuleti igridi impahla isakhiwo ibhokisi, impahla ibe cathode in the impahla eluhlaza, ngokusebenzisa yonke uxhumano slotted phakathi anode plate ikholomu imisiwe, ipuleti ngalinye, ukusetshenziswa kwe-anode impahla efanayo. Ikholomu nepuleti le-anode lesakhiwo sebhokisi lezinto ezibonakalayo ndawonye bakha umzimba wokushisa. Ugesi ugeleza nge-electrode yekhanda lesithando somlilo uye emzimbeni wokushisa wengqikithi yesithando somlilo, futhi izinga lokushisa eliphezulu elikhiqizwayo lishisisa ngokuqondile impahla ye-anode ebhokisini ukuze kuzuzwe injongo ye-graphitization.
1.4 Ukuqhathaniswa kwezinhlobo ezintathu zesithando somlilo se-graphitization
Isithando sokushisa sangaphakathi sochungechunge lwe-graphitization siwukushisa ngokuqondile into ngokushisisa i-electrode ye-graphite engenalutho. "Ukushisa kwe-Joule" okukhiqizwa yi-current ngokusebenzisa i-electrode crucible isetshenziselwa kakhulu ukushisa izinto kanye ne-crucible. Isivinini sokushisisa siyashesha, ukusatshalaliswa kwezinga lokushisa kufana, futhi ukusebenza kahle kokushisa kuphakeme kunesithando somlilo sendabuko sase-Atchison esinokushisa kwempahla yokumelana. I-grid-box graphitization furnace idonsa ezinzuzweni zokushisa kwangaphakathi kwe-serial graphitization furnace, futhi yamukela ipuleti le-anode elibhakwe ngaphambilini elinezindleko eziphansi njengomzimba wokushisisa. Uma kuqhathaniswa nesithando somlilo se-serial graphitization, umthamo wokulayisha wesithando somlilo we-grid-box mkhulu, futhi ukusetshenziswa kwamandla ngomkhiqizo ngamunye weyunithi kuyehliswa ngokufanele.
2. Isiqondiso sokuthuthukiswa kwesithando somlilo esibi se-graphitization
2. 1 Lungiselela ukwakheka kodonga lwepherimitha
Njengamanje, ungqimba olushisayo olushisayo lwesithando somlilo se-graphitization lugcwele ikakhulukazi i-carbon black ne-petroleum coke. Le ngxenye ye-insulation material ngesikhathi kukhiqizwa ukushisa okuphezulu kwe-oxidation, isikhathi ngasinye lapho kulayishwa isidingo sokushintsha noma ukwengeza impahla ekhethekile yokufakelwa, ukushintshwa kwenqubo yemvelo empofu, umfutho ophezulu wokusebenza.
Ungacabanga ukuthi ukusebenzisa amandla akhethekile aphezulu kanye nokushisa okuphezulu kosimende odongeni lwenduku ye-adobe, kuthuthukise amandla onke, kuqinisekiswe udonga kuwo wonke umjikelezo wokusebenza kokuzinza ku-deformation, ukuvalwa kwe-brick seam ngesikhathi esifanayo, ukuvimbela umoya oweqile Ngokuqhekeka kodonga lwezitini kanye negebe elihlangene esithandweni somlilo, ukunciphisa ukushiswa kwe-oxidation ukulahlekelwa kwe-insulating material kanye nezinto ze-anode;
Okwesibili ukufaka ungqimba oluningi lwe-insulation mobile olulenga ngaphandle kodonga lwesithando somlilo, njengokusetshenziswa kwebhodi eliphezulu le-fiberboard noma ibhodi le-calcium silicate, isiteji sokushisa sidlala indima ephumelelayo yokufaka uphawu kanye nokufakwa kwe-insulation, isiteji esibandayo silungele ukususa ukupholisa ngokushesha; Okwesithathu, umzila wokungenisa umoya usethwe ngaphansi kwesithando somlilo kanye nodonga lwesithando somlilo. Isiteshi sokungenisa umoya samukela isakhiwo sezitini esenziwe ngaphambili esinomlomo wesifazane webhande, kuyilapho sisekela amatshe osimende asezingeni eliphezulu, futhi kucatshangelwa ukupholisa umoya okuphoqelekile esigabeni esibandayo.
2. 2 Lungiselela ijika lamandla ngokulingisa izinombolo
Njengamanje, ijika lokunikezwa kwamandla kwesithando somlilo esibi se-electrode graphitization senziwa ngokusho kokuhlangenwe nakho, futhi inqubo ye-graphitization ilungiswa ngesandla nganoma yisiphi isikhathi ngokuvumelana nezinga lokushisa nesithando somlilo, futhi ayikho indinganiso ebumbene. Ukuthuthukisa ijika lokushisa ngokusobala kunganciphisa inkomba yokusetshenziswa kwamandla futhi kuqinisekise ukusebenza okuphephile kwesithando somlilo. I-NUMERICAL MODEL YOkuqondanisa yenaliti KUFANELE IMISWE ngezindlela zesayensi ngokuya ngezimo zemingcele ehlukahlukene kanye nemingcele ebonakalayo, futhi ubudlelwano phakathi kwamanje, i-voltage, amandla aphelele kanye nokusatshalaliswa kwezinga lokushisa kwesigaba esiphambanayo enqubweni ye-graphHItization kufanele kuhlaziywe, ukuze kwakhiwe ijika elifanele lokushisisa futhi kulungiswe ngokuqhubekayo ekusebenzeni kwangempela. Njengasesigabeni sokuqala sokudluliswa kwamandla ukusetshenziswa kokudluliselwa kwamandla aphezulu, bese wehlisa ngokushesha amandla bese ukhuphuka kancane, amandla bese unciphisa amandla kuze kube sekupheleni kwamandla.
2. 3 Nweba impilo yesevisi ye-crucible kanye ne-heater body
Ngaphezu kokusetshenziswa kwamandla, impilo ye-crucible ne-heater iphinde inqume ngokuqondile izindleko ze-graphitization engalungile. Ngomzimba wokushisa we-graphite crucible kanye ne-graphite, uhlelo lokulawula ukukhiqizwa kokulayisha ngaphandle, ukulawulwa okunengqondo kokushisa nokupholisa, umugqa wokukhiqiza othomathikhi we-crucible, ukuqinisa ukuvala ukuvimbela i-oxidation nezinye izinyathelo zokwandisa izikhathi zokuvuselela kabusha i-crucible, ukunciphisa ngokuphumelelayo izindleko ze-graphite inking. Ngaphezu kwalezi zinyathelo ezingenhla, ipuleti lokushisisa lesithando somlilo se-grid box graphitization lingasetshenziswa futhi njengento yokushisa ye-anode ebhakwe ngaphambilini, i-electrode noma impahla ye-carbonaceous engaguquki enokumelana okuphezulu ukuze konge izindleko ze-graphitization.
2.4 Ukulawula igesi ewumkhuhlane kanye nokusetshenziswa kokushisa kukadoti
I-flue gas ekhiqizwa ngesikhathi se-graphitization ngokuyinhloko ivela ku-volatile kanye nemikhiqizo evuthayo yezinto ze-anode, ukushiswa kwe-carbon surface, ukuvuza komoya nokunye. Ekuqaleni kokuqalwa kwesithando somlilo, ama-volatiles kanye nothuli kuphunyuka inani elikhulu, indawo yokusebenzela imbi, amabhizinisi amaningi awanazo izindlela zokwelapha ezisebenzayo, lena inkinga enkulu ethinta impilo yomsebenzi nokuphepha kwabaqhubi ekukhiqizeni ama-electrode angalungile. Imizamo eyengeziwe kufanele yenziwe ukuze kucatshangelwe ngokugcwele ukuqoqwa kanye nokuphathwa okuphumelelayo kwegesi ephumayo nothuli endaweni yokusebenzela, futhi izinyathelo ezifanele zokungenisa umoya kufanele zithathwe ukuze kuncishiswe izinga lokushisa le-workshop futhi kuthuthukiswe indawo yokusebenza ye-graphitization workshop.
Ngemuva kokuthi igesi ye-flue ingaqoqwa ngombhobho ekamelweni elivuthayo elixubekile, lisuse iningi letiyela nothuli ku-flue gas, kulindeleke ukuthi izinga lokushisa legesi eliwumkhuhlane ekamelweni lokuvutha libe ngaphezu kuka-800 ℃, kanye nokushisa kwemfucumfucu yegesi kungatholwa ngokusebenzisa isitimu sokushisa esishisayo noma igobolondo. Ubuchwepheshe bokushiswa kwe-RTO obusetshenziswa ekwelapheni intuthu ye-carbon asphalt bungabuye busetshenziselwe ireferensi, futhi igesi ye-asphalt flue ishisiswe ibe ngu-850 ~ 900 ℃. Ngokushiswa kwesitoreji sokushisa, itiyela kanye nezingxenye eziguquguqukayo namanye ama-polycyclic ama-hydrocarbons anephunga elimnandi kugesi we-flue akhishwa nge-oxid futhi agcine ebola abe yi-CO2 ne-H2O, futhi ukusebenza kahle kokuhlanza kungafinyelela ngaphezu kwama-99%. Uhlelo lunokusebenza okuzinzile kanye nezinga eliphezulu lokusebenza.
2. 5 Isithando somlilo se-graphitization esime mpo esiqhubekayo
Lezi zinhlobo ezimbalwa ezishiwo ngenhla zesithando somlilo ziyisakhiwo esikhulu sesithando somlilo sokukhiqizwa kwe-anode e-China, iphuzu elivamile ukukhiqizwa kwezikhawu ngezikhathi ezithile, ukusebenza kahle okuphansi kokushisa, ukulayisha ngaphandle ikakhulukazi kuncike ekusebenzeni kwezandla, izinga lokuzenzekelayo alikho phezulu. Isithando somlilo esifanayo esime mpo esiqhubekayo esinegethivu se-graphitization singathuthukiswa ngokubhekisela kumodeli yesithando somlilo se-petroleum coke calcination kanye nesithando somlilo se-bauxite calcination shaft. I-ARC yokumelana isetshenziswa njengomthombo wokushisa ophakeme wokushisa, impahla ikhishwa ngokuqhubekayo ngamandla ayo adonsela phansi, futhi isakhiwo sokupholisa samanzi esivamile noma i-gasification sisetshenziselwa ukupholisa izinto zokushisa eziphakeme endaweni yokuphuma, futhi uhlelo lokudlulisa i-powder pneumatic lusetshenziselwa ukukhipha nokondla impahla ngaphandle kwesithando somlilo. Uhlobo lwe-FURNACE lungakwazi ukubona ukukhiqizwa okuqhubekayo, ukulahlekelwa kwesitoreji sokushisa komzimba wesithando somlilo kungase kunganakwa, ngakho-ke ukusebenza kahle kokushisa kuthuthukiswa kakhulu, izinzuzo zokukhipha kanye nokusetshenziswa kwamandla ziyabonakala, futhi ukusebenza okuzenzakalelayo okugcwele kungenziwa ngokugcwele. Izinkinga eziyinhloko okufanele zixazululwe yi-fluidity of powder, ukufana kwe-graphitization degree, ukuphepha, ukuqapha izinga lokushisa nokupholisa, njll. Kukholakala ukuthi ngokuthuthukiswa okuphumelelayo kwesithando somlilo ukukala ukukhiqizwa kwezimboni, kuzomisa inguquko emkhakheni we-graphitization ye-electrode negative.
3 ulimi lwamafindo
Inqubo yamakhemikhali e-graphite iyinkinga enkulu ekhungethe abakhiqizi bezinto ze-lithium battery anode. Isizathu esibalulekile ukuthi kusenezinkinga ezithile ekusetshenzisweni kwamandla, izindleko, ukuvikelwa kwemvelo, idigri ye-automation, ukuphepha kanye nezinye izici zesithando somlilo esisetshenziswa kakhulu se-graphitization. Isimo sesikhathi esizayo semboni sibheke ekuthuthukisweni kwesithando somlilo esisebenza ngokugcwele nesihlelekile esiqhubekayo sokukhiqiza, kanye nokweseka izinsiza zezinqubo eziyisiza ezivuthiwe nezithembekile. Ngaleso sikhathi, izinkinga ze-graphitization ezihlupha amabhizinisi zizothuthukiswa kakhulu, futhi imboni izongena esikhathini sokuthuthuka okuzinzile, ikhulise ukuthuthukiswa okusheshayo kwezimboni ezintsha ezihlobene namandla.
Isikhathi sokuthumela: Aug-19-2022