I-needle coke iyinhlobonhlobo yekhwalithi ephezulu eyakhiwe ngamandla ezintweni zekhabhoni. Ukubukeka kwayo kuyi-porous solid nesiliva grey kanye ne-metallic luster. Isakhiwo saso sinokuthungwa kokugeleza okusobala, okunezimbobo ezinkulu kodwa ezimbalwa kanye nokuma okusaqanda kancane. Yimpahla eluhlaza yokukhiqiza imikhiqizo yekhabhoni ephezulu efana ne-ultra-high power electrode, izinto zekhabhoni ezikhethekile, i-carbon fiber kanye nezinto zayo eziyinhlanganisela.
Ngokwezinto ezihlukene zokukhiqiza, i-coke yenaliti ingahlukaniswa ngochungechunge lwamafutha kanye nochungechunge lwamalahle izinhlobo ezimbili ze-coke yenaliti. I-coke yenaliti ekhiqizwa ngezinsalela ze-petroleum njengempahla eluhlaza i-oil series nele coke. I-coke yenaliti yokulinganisa amalahle ekhiqizwa ngetiyela yamalahle futhi ingxenyenamba yayo ibizwa ngokuthi i-coal measure needle coke.
Izinkomba ezithinta ikhwalithi yenaliti ye-coke zihlanganisa ukuminyana kwangempela, okuqukethwe kwesibabule, okuqukethwe kwe-nitrogen, okuqukethwe okuguquguqukayo, okuqukethwe komlotha, i-thermal coefficient, ukumelana nogesi, ukuminyana okuqinile kokudlidliza, njll. Ngenxa ye-coefficients yenkomba ehlukile, i-coke yenaliti zihlukaniswe zibe yibanga eliphezulu (ibanga eliphezulu), ibanga lokuqala nelesibili.
Umehluko wokusebenza phakathi kwenaliti ye-coal measure ne-oil measure needle coke uhlanganisa amaphuzu alandelayo.
1. Ngaphansi kwezimo ezifanayo, i-graphite electrode eyenziwe nge-oil series needle coke kulula ukwakheka kunochungechunge lwamalahle enaliti coke ngokusebenza.
2. Ngemva kokwenziwa kwemikhiqizo ye-graphite, imikhiqizo ye-graphitized yochungechunge lwenaliti ye-oil coke ine-density ephakeme kancane namandla kunaleyo yochungechunge lwamalahle enaliti ye-coke, okubangelwa ukunwetshwa kochungechunge lwenaliti yamalahle ngesikhathi se-graphitization.
3. Ekusetshenzisweni okukhethekile kwe-graphite electrode, imikhiqizo ye-graphitized ene-coke yenaliti yamafutha ine-coefficient ephansi yokwandisa okushisayo.
4. Ngokwezinkomba zomzimba namakhemikhali we-graphite electrode, ukumelana okuthile kwemikhiqizo ye-graphitized yochungechunge lwenaliti ye-coke kuphakeme kancane kunochungechunge lwamalahle lwemikhiqizo ye-coke yenaliti.
5. Into ebaluleke kakhulu ukuthi i-coke yenaliti yesilinganiso samalahle ikhula ngenqubo yokushisa okuphezulu kwe-graphitization, lapho izinga lokushisa lifinyelela ku-1500-2000 ℃, ngakho-ke isivinini sokukhuphuka kwezinga lokushisa kufanele silawulwe ngokuqinile, singashisi ngokushesha, kungcono ukungashisi. sebenzisa uchungechunge lwenqubo yokukhiqiza i-graphitization, isilinganiso samalahle senaliti coke ngokungeza izithasiselo ukuze ulawule ukunwetshwa kwayo, izinga lokunwetshwa lingancishiswa. Kodwa kunzima kakhulu ukufeza amafutha - i-coke yenaliti esekelwe.
6. Isistimu kawoyela obaliwe inokuqukethwe kwe-coke encane kakhulu nosayizi wokusanhlamvu ocolekile, kuyilapho inaliti yokulinganisa amalahle inokuqukethwe kwe-coke encane nosayizi wokusanhlamvu omkhulu (35-40 mm), ongahlangabezana nemfuneko yosayizi wokusanhlamvu wefomula, kodwa iletha ubunzima. ekuchobozeni komsebenzisi.
7. Ngokusho kwe-Japan Petroleum Coke Company, kubhekwa ukuthi ukwakheka kwe-oil series needle coke kulula kunaleyo yochungechunge lwamalahle enaliti coke, ngakho-ke kulula ukulawula ngesikhathi sokupheka.
Ngokombono ongenhla, i-coke yenaliti yesistimu yamafutha inezine eziphansi: amandla adonsela phansi aphansi, amandla aphansi, i-CTE ephansi, ukumelana okuqondile okuphansi, okubili kokuqala okuphansi kwemikhiqizo ye-graphite, okubili kokugcina okuphansi emikhiqizweni ye-graphite kuyathandeka. Ngokuvamile, izinkomba zokusebenza zochungechunge lwenaliti ye-coke zingcono kunalezo zochungechunge lwenaliti yamalahle, futhi isidingo sohlelo lokusebenza singaphezulu.
Njengamanje, i-graphite electrode iyimakethe efunwa kakhulu ye-coke yenaliti, ebalwa cishe ngama-60% okusetshenziswa okuphelele kwe-coke yenaliti, futhi amabhizinisi ama-electrode anesidingo esicacile sekhwalithi yenaliti ye-coke, ngaphandle kwesidingo sekhwalithi yomuntu siqu. Izinto zebhethri ze-lithium ion zinesidingo esihluke kakhulu se-coke yenaliti, imakethe yedijithali ephezulu ikhetha i-coke ephekwe ngamafutha, imakethe yebhethri yamandla incike kakhulu ku-coke eluhlaza engabizi kakhulu.
Ukukhiqizwa kwe-needle coke kunomkhawulo othile wezobuchwepheshe, ngakho-ke kukhona amabhizinisi ambalwa asekhaya. Njengamanje, abakhiqizi bezinaliti zezinaliti ezijwayelekile zasekhaya bahlanganisa i-Shandong Jingyang, i-Shandong Yida, i-Jinzhou Petrochemical, i-Shandong Lianhua, i-Bora Biological, i-Weifang Fumei New Energy, i-Shandong Yiwei, i-Sinopec Jinling Petrochemical, i-Maoming Petrochemical, njll. Abakhiqizi abakhulu besilinganiso samalahle inaliti coke kukhona Baowu Carbon Material, Baotailong Technology, Anshan Kaitan, Angang Chemical, Fang Daxi Kemo, Shanxi Hongte, Henan Kaitan, Xuyang Group, Zaozhuang Zhenxing, Ningxia Baichuan, Tangshan Dongri New Energy, Taiyuan Shengxu, njll.
Isikhathi sokuthumela: Dec-02-2022