Ndi chitukuko chachangu cha mafakitale a aluminiyamu a electrolytic, makampani opanga anode a aluminiyamu akhala malo atsopano opezera ndalama, kupanga anode ya prebaking kukuchulukirachulukira, petroleum coke ndiye chinthu chachikulu chomwe chimagwiritsidwa ntchito popanga anode ya prebaking, ndipo zizindikiro zake zidzakhudza kwambiri mtundu wa zinthu.
Sulfule wochuluka
Kuchuluka kwa sulfure mu petroleum coke kumadalira kwambiri mtundu wa mafuta osakonzedwa. Kawirikawiri, pamene kuchuluka kwa sulfure mu petroleum coke kuli kochepa, kugwiritsa ntchito anode kumachepa ndi kuchuluka kwa sulfure, chifukwa sulfure imawonjezera kuchuluka kwa phula lophika ndi kuchepetsa porosity ya phula lophika. Nthawi yomweyo, sulfure imaphatikizidwanso ndi zonyansa zachitsulo, zomwe zimachepetsa Catalysis ndi zonyansa zachitsulo kuti zichepetse reactivity ya carbon dioxide ndi reactivity ya mpweya wa carbon anodes. Komabe, ngati kuchuluka kwa sulfure kuli kokwera kwambiri, kudzawonjezera kutentha kwa anode ya carbon, ndipo chifukwa sulfure imasinthidwa kukhala gawo la mpweya mu mawonekedwe a oxides panthawi ya electrolysis, zidzakhudza kwambiri chilengedwe cha electrolysis, ndipo kuthamanga kwa chitetezo cha chilengedwe kudzakhala kwakukulu. Kuphatikiza apo, sulfure ikhoza kupangidwa pa filimu ya anode ndodo yachitsulo, zomwe zimawonjezera kutsika kwa magetsi. Pamene mafuta osakonzedwa ochokera kudziko langa akupitilira kuwonjezeka ndipo njira zokonzera zikupitilirabe kusintha, chizolowezi cha petroleum coke yosakwanira sichingapeweke. Pofuna kusintha zinthu zopangira, opanga ma anode ophikidwa kale ndi makampani opanga aluminiyamu a electrolytic achita kusintha kwakukulu kwaukadaulo komanso kupita patsogolo kwaukadaulo. Kuchokera ku anode yophikidwa kale yaku China Malinga ndi kafukufuku wa makampani opanga, petroleum coke yokhala ndi sulfure pafupifupi 3% nthawi zambiri imatha kusungunuka mwachindunji.
Zinthu zotsatizana
Zinthu zotsalira mu petroleum coke makamaka zimaphatikizapo Fe, Ca, V, Na, Si, Ni, P, Al, Pb, ndi zina zotero. Chifukwa cha magwero osiyanasiyana a mafuta oyeretsera mafuta, kapangidwe ndi kuchuluka kwa zinthu zotsalira ndizosiyana kwambiri. Zinthu zina zotsalira zimabweretsedwa kuchokera ku mafuta osakonzedwa, monga S, V, ndi zina zotero. Zitsulo zina za alkali ndi zitsulo za alkaline zidzabweretsedwanso, ndipo phulusa lina lidzawonjezedwa panthawi yonyamula ndi kusungira, monga Si, Fe, Ca, ndi zina zotero. Kuchuluka kwa zinthu zotsalira mu petroleum coke kumakhudza mwachindunji moyo wa ntchito ya anode yophikidwa kale komanso mtundu ndi kalasi ya zinthu zopangidwa ndi aluminiyamu ya electrolytic. Ca, V, Na, Ni ndi zinthu zina zimakhala ndi mphamvu yayikulu yoyambitsa oxidation reaction, yomwe imalimbikitsa oxidation yosankha ya anode, zomwe zimapangitsa kuti anode igwetse slag ndi blocks, ndikuwonjezera kugwiritsa ntchito kwambiri kwa anode; Si ndi Fe zimakhudza kwambiri mtundu wa aluminiyamu yoyambirira, ndipo kuchuluka kwa Si kumawonjezeka. Idzawonjezera kuuma kwa aluminiyamu, kuchepetsa kuyendetsa magetsi, ndipo kuwonjezeka kwa kuchuluka kwa Fe kumakhudza kwambiri kukana kwa pulasitiki ndi dzimbiri kwa aloyi ya aluminiyamu. Kuphatikiza ndi zofunikira zenizeni zopangira mabizinesi, kuchuluka kwa zinthu zotsalira monga Fe, Ca, V, Na, Si, ndi Ni mu petroleum coke kuyenera kuchepetsedwa.
Zinthu zosakhazikika
Kuchuluka kwa mafuta oundana mu petroleum coke kumasonyeza kuti gawo losaphika limanyamulidwa kwambiri. Kuchuluka kwa mafuta oundana kwambiri kumakhudza kuchuluka kwenikweni kwa mafuta oundana mu calcined coke ndikuchepetsa kuchuluka kwenikweni kwa mafuta oundana mu calcined coke, koma kuchuluka koyenera kwa mafuta oundana kumathandiza mafuta oundana mu calcined coke. Mafuta oundana akaphikidwa pa kutentha kwakukulu, mafuta oundana amachepa. Popeza ogwiritsa ntchito osiyanasiyana ali ndi ziyembekezo zosiyana za mafuta oundana, kuphatikiza zosowa zenizeni za opanga ndi ogwiritsa ntchito, zimanenedwa kuti mafuta oundana sayenera kupitirira 10%-12%.
Phulusa
Zonyansa za mchere zosayaka (zinthu zotsalira) zomwe zatsala pambuyo pa gawo loyaka la petroleum coke zimatenthedwa kwathunthu kutentha kwa madigiri 850 ndi mpweya wozungulira zimatchedwa phulusa. Cholinga choyezera phulusa ndikuzindikira kuchuluka kwa zonyansa za mchere (zinthu zotsalira) Kuchuluka kwake, kuti tiwone mtundu wa petroleum coke. Kuwongolera kuchuluka kwa phulusa kudzawongoleranso zinthu zotsalira. Kuchuluka kwa phulusa kudzakhudza kwambiri mtundu wa anode yokha ndi aluminiyamu yoyambirira. Kuphatikiza ndi zosowa zenizeni za ogwiritsa ntchito komanso momwe mabizinesi amapangira, zanenedwa kuti kuchuluka kwa phulusa sikuyenera kupitirira 0.3%-0.5%.
Chinyezi
Magwero akuluakulu a madzi mu petroleum coke: Choyamba, pamene nsanja ya coke yatulutsidwa, petroleum coke imatulutsidwa kupita ku dziwe la coke mothandizidwa ndi hydraulic cutting; chachiwiri, kuchokera ku chitetezo, pambuyo poti coke yatulutsidwa, petroleum coke yomwe sinaziziritsidwe kwathunthu iyenera kupopedwa kuti izizire. Chachitatu, petroleum coke imayikidwa panja m'madziwe a coke ndi malo osungiramo zinthu, ndipo chinyezi chake chidzakhudzidwanso ndi chilengedwe; chachinayi, petroleum coke ili ndi kapangidwe kosiyana komanso kuthekera kosiyanasiyana kosunga chinyezi.
Zakudya za Coke
Kukula kwa tinthu ta petroleum coke kumakhudza kwambiri kuchuluka kwa mafuta, mphamvu zomwe zimagwiritsidwa ntchito komanso kuchuluka kwa calcium coke. Mafuta a petroleum coke okhala ndi ufa wambiri wa coke amataya mpweya wambiri panthawi ya calcination. Kuwombera ndi zinthu zina zingayambitse mavuto monga kusweka msanga kwa thupi la uvuni, kuyaka kwambiri, kutsekeka kwa valavu yotulutsira madzi, kusweka mosavuta kwa calcium coke, komanso kukhudza moyo wa calciner. Nthawi yomweyo, kuchuluka kwenikweni, kuchuluka kwa madzi, porosity, ndi mphamvu ya calcium coke, Resistivity ndi oxidation zimakhudza kwambiri. Kutengera momwe zinthu zilili pakupanga mafuta a petroleum coke m'nyumba, kuchuluka kwa ufa wa coke (5mm) kumayendetsedwa mkati mwa 30%-50%.
Zinthu zomwe zili mu coke yojambulidwa
Chokoka cha shot coke, chomwe chimadziwikanso kuti spherical coke kapena shot coke, ndi cholimba, chokhuthala komanso chopanda mabowo, ndipo chilipo ngati misa yosungunuka yozungulira. Pamwamba pa chokoka cha shot coke ndi yosalala, ndipo kapangidwe ka mkati sikugwirizana ndi kunja. Chifukwa cha kusowa kwa mabowo pamwamba, mukasakaniza ndi phula la malasha lopangidwa ndi binder, zimakhala zovuta kuti chokoka cha shot coke chilowe mkati mwa chokoka, zomwe zimapangitsa kuti chigwirizane mosavuta komanso chikhale ndi zolakwika zamkati. Kuphatikiza apo, kuchuluka kwa kutentha kwa chokoka cha shot coke kumakhala kwakukulu, zomwe zingayambitse ming'alu ya kutentha mosavuta akamaphika. Chokoka cha petroleum chomwe chimagwiritsidwa ntchito mu chokoka cha shot coke sichiyenera kukhala ndi chokoka cha shot coke.
Catherine@qfcarbon.com +8618230208262
Nthawi yotumizira: Disembala-20-2022