I-Needle coke uhlobo olusezingeni eliphezulu oluthuthukiswe ngamandla ezintweni zekhabhoni. Ukubukeka kwayo kuyi-solid evulekile ene-silver grey kanye ne-metallic luster. Isakhiwo sayo sinokuthungwa okusobala okugelezayo, inezimbobo ezinkulu kodwa ezimbalwa kanye nesimo se-oval kancane. Yizinto zokusetshenziswa zokukhiqiza imikhiqizo yekhabhoni ephezulu njenge-electrode yamandla aphezulu kakhulu, izinto zekhabhoni ezikhethekile, i-carbon fiber kanye nezinto zayo ezihlanganisiwe.
Ngokwezinto zokusetshenziswa ezahlukene, i-needle coke ingahlukaniswa ibe yi-oil needle coke kanye ne-coke yamalahle. I-needle coke ekhiqizwa kusuka ku-petroleum residue yi-oil needle coke. I-needle coke ekhiqizwa kusuka ku-coal tar pitch kanti ingxenye yayo iyi-coal coke.
Izinkomba ezithinta ikhwalithi ye-needle coke zifaka phakathi ubuningi beqiniso, okuqukethwe kwe-sulfur, okuqukethwe kwe-nitrogen, i-volatile matter, okuqukethwe komlotha, ubuningi bokukhula kokushisa, ukuqina kokumelana, ubuningi bokudlidliza, njll. Ngenxa yobukhulu obuhlukile be-index, i-needle coke ingahlukaniswa ibe yi-super grade (ibanga elihle kakhulu), ibanga lokuqala kanye nebanga lesibili.
Umehluko wokusebenza phakathi kwe-coke yenaliti yamalahle neyamafutha uhlanganisa amaphuzu alandelayo.
1. Ngaphansi kwezimo ezifanayo, i-electrode ye-graphite eyenziwe nge-coke yenaliti kawoyela kulula ukuyibumba kune-coke yenaliti yamalahle.
2. Ngemva kokwenza imikhiqizo ye-graphite, ubuningi namandla emikhiqizo ye-graphitized ye-needle coke yochungechunge lwamafutha kuphakeme kancane kunokwe-needle coke yochungechunge lwamalahle, okubangelwa ukwanda kwe-needle coke yochungechunge lwamalahle ngesikhathi se-graphitization.
3. Ekusetshenzisweni okuqondile kwe-graphite electrode, umkhiqizo we-graphitized we-oil needle coke une-coefficient ephansi yokwanda kokushisa.
4. Ngokuphathelene nezinkomba zomzimba nezamakhemikhali ze-graphite electrode, ukumelana okuqondile komkhiqizo we-graphitized we-oil needle coke kuphakeme kancane kunomkhiqizo we-coke yeenaliti zamalahle.
5. Okubaluleke kakhulu ukuthi i-coke yenaliti yokulinganisa amalahle iyanda lapho izinga lokushisa lifinyelela ku-1500-2000 ℃ enkambisweni ye-graphitization yokushisa okuphezulu, ngakho-ke izinga lokunyuka kwezinga lokushisa kufanele lilawulwe ngokuqinile, hhayi ukukhuphuka kwezinga lokushisa okusheshayo, kungcono ukungasebenzisi ukukhiqizwa kwenqubo ye-graphitization yochungechunge, i-coke yenaliti yokulinganisa amalahle ngokungeza izithasiselo ukulawula ukwanda kwayo, izinga lokukhula lingancishiswa. Kodwa kunzima kakhulu ukufeza i-coke yenaliti yamafutha.
6. I-coke yenaliti yamafutha e-calcined ine-coke encane kakhulu kanye nosayizi wezinhlayiya ezincane, kuyilapho i-coke yenaliti yamalahle inokuqukethwe okuncane kanye nosayizi wezinhlayiya ezinkulu (35 — 40 mm), okungahlangabezana nezidingo zosayizi wezinhlayiya zefomula, kodwa kuletha ubunzima kubasebenzisi.
7. Ngokusho kokwethulwa kweNkampani iJapan Petroleum Coke, kukholelwa ukuthi ukwakheka kwe-coke yamafutha kulula kune-coke yamalambu, ngakho-ke kulula ukulawula isikhathi sokucola nokushisa.
Kusukela ngenhla, i-oil needle coke inezine eziphansi: amandla adonsela phansi angemanga aphansi, amandla aphansi, i-CTE ephansi, ukumelana okuphansi okuqondile, imikhiqizo emibili yokuqala ephansi kuya ku-graphite, imikhiqizo emibili yokugcina ephansi kuya ku-graphite iyathandeka. Sekukonke, izinkomba zokusebenza ze-oil series needle coke zingcono kune-coke yeenaliti zamalahle, futhi isidingo sokusetshenziswa naso sikhulu.
Njengamanje, i-graphite electrode iyimakethe eyinhloko yesidingo se-needle coke, ebiza cishe u-60% wokusetshenziswa okuphelele kwe-needle coke, kuyilapho amabhizinisi e-electrode enesidingo sekhwalithi esicacile se-needle coke, ngaphandle kwesidingo sekhwalithi esenziwe ngokwezifiso. Isidingo se-needle coke sezinto ze-anode zebhethri le-lithium ion sihlukahlukene kakhulu, imakethe yedijithali ephezulu ithanda i-coke ephekiwe ngamafutha, imakethe yebhethri yamandla incike kakhulu ku-coke enezindleko eziphezulu zokusebenza.
Ukukhiqizwa kwe-Needle coke kunomkhawulo othile wezobuchwepheshe, ngakho-ke amabhizinisi asekhaya awavamile. Njengamanje, amabhizinisi asekhaya akhiqiza uwoyela we-needle coke afaka: i-Weifang Fumei new Energy, 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. Amabhizinisi akhiqiza i-needle coke ochungechungeni lwamalahle izinto ze-carbon ze-Baowu, ubuchwepheshe be-Baotailong, i-Anshan open carbon, i-Anshan Chemical, i-Fang Daxi ke Mo, i-Shanxi Macro, i-Henan open carbon, i-Xuyang Group, ukuvuselelwa kwe-Zaozhuang, i-Ningxia Baichuan, i-Tangshan Dongri new energy, i-Taiyuan Shengxu njalo njalo.
Isikhathi sokuthunyelwe: Okthoba-19-2021