I-needle coke iyinhlobonhlobo yekhwalithi ephezulu eyakhiwe ngamandla ezintweni zekhabhoni. Ukubukeka kwayo kuyi-porous solid nesiliva grey kanye ne-metallic luster. Ukwakheka kwayo kunokuthungwa okugelezayo okusobala, okunezimbobo ezinkulu kodwa ezimbalwa kanye nokuma okusaqanda okuthe ukuqanda. Yimpahla eluhlaza yokukhiqiza imikhiqizo yekhabhoni ephezulu kakhulu efana ne-electrode yamandla aphezulu, i-carbon material ekhethekile, i-carbon fibre kanye nezinto zayo eziyinhlanganisela.
Ngokwezinto zokusetshenziswa ezihlukene, i-coke yenaliti ingahlukaniswa ibe yi-coke yenaliti yamafutha kanye ne-coke yenaliti yamalahle. I-needle coke ekhiqizwa kuzinsalela ze-petroleum i-coke yenaliti yamafutha. I-coke yenaliti ekhiqizwe nge-coal tar pitch kanye nengxenye yayo iwuchungechunge lwamalahle yenaliti coke.
Izinkomba ezithinta ikhwalithi yenaliti ye-coke zihlanganisa ukuminyana kweqiniso, okuqukethwe kwesibabule, okuqukethwe kwe-nitrogen, izinto eziguquguqukayo, okuqukethwe komlotha, i-coefficient yokwandisa ukushisa okushisayo, ukumelana nokudlidliza, ukudlidliza kwe-vibration, njll
Umehluko wokusebenza phakathi kwamalahle nenaliti yenaliti ye-coke ihlanganisa amaphuzu alandelayo.
1. Ngaphansi kwezimo ezifanayo, i-electrode ye-graphite eyenziwe nge-coke yenaliti yamafutha kulula ukubumba kune-coke yenaliti yamalahle.
2. Ngemuva kokwenza imikhiqizo ye-graphite, ukuminyana namandla emikhiqizo ye-graphitized ye-oil-series inaliti ye-coke iphakeme kancane kune-coke yenaliti yamalahle, okubangelwa ukunwetshwa kwe-coke yenaliti yochungechunge lwamalahle ngesikhathi se-graphitization.
3. Ekusetshenzisweni okukhethekile kwe-graphite electrode, umkhiqizo owenziwe nge-graphiti we-coke yenaliti yamafutha une-coefficient ephansi yokwandisa okushisayo.
4. Ngokwezinkomba zomzimba namakhemikhali we-graphite electrode, ukumelana okuthile komkhiqizo we-graphitized we-coke yenaliti yamafutha kuphakeme kancane kunomkhiqizo we-coke yenaliti yamalahle.
5. Okubaluleke kakhulu ukuthi i-coke yokukala inaliti yamalahle iyanda lapho izinga lokushisa lifinyelela ku-1500-2000 ℃ ngenqubo yokushisa okuphezulu kwe-graphitization, ngakho-ke izinga lokushisa lokushisa kufanele lilawulwe ngokuqinile, hhayi ukukhuphuka kokushisa okusheshayo, kungcono ukungasebenzisi uchungechunge lwenqubo yokukhiqiza i-graphitization, i-coke yokukala inaliti yamalahle ngokungeza izithasiselo zokunciphisa izinga lokukhulisa. Kodwa kunzima kakhulu ukufeza inaliti yenaliti ye-coke.
6. I-coke yenaliti kawoyela e-calcined ine-coke encane kakhulu kanye nosayizi wezinhlayiyana ezinhle, kuyilapho inaliti ye-coke yamalahle inokuqukethwe okuncane nosayizi wezinhlayiyana ezinkulu (35 — 40 mm), ezingahlangabezana nezidingo zosayizi wezinhlayiyana zefomula, kodwa iletha ubunzima kubasebenzisi.
7. Ngokusho kokwethulwa kweJapan Petroleum Coke Company, kukholelwa ukuthi ukwakheka kwe-coke yenaliti yamafutha kulula kune-coke yenaliti yamalahle, ngakho-ke kulula ukulawula isikhathi sokupheka nokushisa.
Kusukela ngenhla, inaliti yenaliti ye-coke inezine eziphansi: amandla adonsela phansi amanga aphansi, amandla aphansi, i-CTE ephansi, ukumelana okuthile okuphansi, okubili kokuqala okuphansi kwemikhiqizo ye-graphite, okubili kokugcina okuphansi kwemikhiqizo ye-graphite kuyathandeka. Sekukonke, izinkomba zokusebenza zochungechunge lwenaliti ye-oyela zingcono kune-coke yenaliti yochungechunge lwamalahle, futhi isidingo sohlelo lokusebenza singaphezulu.
Njengamanje, i-graphite electrode iyimakethe efunwa kakhulu ye-coke yenaliti, ebalwa cishe ngama-60% okusetshenziswa okuphelele kwe-coke yenaliti, kanti amabhizinisi ama-electrode anesidingo esicacile sekhwalithi ye-coke yenaliti, ngaphandle kwesidingo sekhwalithi yomuntu siqu. Isidingo senaliti se-coke se-lithium ion battery anode material sihluke kakhulu, imakethe yedijithali ephezulu ithanda i-coke ephekwe ngamafutha, imakethe yebhethri yamandla incike kakhulu ku-coke ngokusebenza kwezindleko eziphezulu.
Ukukhiqizwa kwe-needle coke kunomkhawulo othile wezobuchwepheshe, ngakho-ke amabhizinisi asekhaya awavamile. Njengamanje, amabhizinisi ajwayelekile afuywayo okukhiqiza inaliti kawoyela ahlanganisa: Weifang Fumei new Energy, Shandong Jingyang, Shandong Yida, Jinzhou Petrochemical, Shandong Lianhua, Bora Biological, Weifang Fumei amandla amasha, Shandong Yiwei, Sinopec jinling Petrochemical, Maoming Coolstream production series Badinga izinto ezisetshenziswayo zokukhiqiza i-cool, i-cooming petrochemical, njll. Ubuchwepheshe be-Baotailong, i-Anshan evulekile ye-carbon, i-Anshan Chemical, i-Fang Daxi ke Mo, i-Shanxi Macro, i-Henan evulekile ye-carbon, i-Xuyang Group, ukuvuselelwa kwe-Zaozhuang, i-Ningxia Baichuan, i-Tangshan Dongri amandla amasha, i-Taiyuan Shengxu nokunye.
Isikhathi sokuthumela: Oct-19-2021