Nekukurumidza kuvandudzwa kweelectrolytic aluminium indasitiri, aluminium prebaking anode indasitiri yave nzvimbo itsva yekudyara, kugadzirwa kwe prebaking anode kuri kuwedzera, petroleum coke ndiyo huru zvinhu zveprebaking anode, uye indexes dzayo dzichava nekukanganisa kwemhando. zvezvigadzirwa.
Sulfur content
Sulfur yemukati mupetroleum coke inonyanya kuenderana nemhando yemafuta asina kuchena. Kazhinji, kana sulfur yepetroleum coke yakadzikira, kushandiswa kweanode kunodzikira nekuwedzera kwesarufa, nekuti sarufa inowedzera coking rate yeasphalt uye inoderedza porosity yeasphalt coking. Panguva imwecheteyo, sarufa inosanganiswawo nesimbi tsvina, kuderedza Catalysis nesimbi tsvina kudzvinyirira carbon dioxide reactivity uye air reactivity ye carbon anodes. Nekudaro, kana iyo sulfur yemukati yakawandisa, inowedzera kupisa kwekupisa kwekabhoni anode, uye nekuti sarufa inonyanya kushandurwa kuita gasi chikamu muchimiro cheokisi panguva ye electrolysis process, ichakanganisa zvakanyanya nharaunda ye electrolysis, uye kuchengetedzwa kwezvakatipoteredza kuchave kwakakura. Mukuwedzera, sulfuration inogona kuumbwa pane anode tsvimbo Iron film, ichiwedzera kudonha kwemhepo. Sezvo kutengwa kwemafuta asina kuchena munyika yangu kuri kuramba kuchiwedzera uye nzira dzekugadzira dzichiramba dzichivandudza, maitiro eiyo yakaderera petroleum coke haidzivisiki. Kuti uenderane nekuchinja kwezvinhu zvakabikwa, vagadziri veanode prebaked uye iyo electrolytic aluminium indasitiri vakaita nhamba huru yeshanduko yetekinoroji uye kubudirira kwehunyanzvi. Kubva kuChina yekumba yakabikwa anode Zvinoenderana nekuferefetwa kwemabhizinesi ekugadzira, petroleum coke ine sulfur yemukati inosvika 3% inogona kazhinji kuverengerwa zvakanangana.
Trace elements
Kutsvaga zvinhu mupetroleum coke kunyanya zvinosanganisira Fe, Ca, V, Na, Si, Ni, P, Al, Pb, etc. Nekuda kwemafuta akasiyana-siyana emafuta ekunatsa petroleum, kuumbwa uye zvirimo zvetrace elements zvakasiyana zvakanyanya. Mamwe ma trace elements anounzwa kubva mumafuta asina kukora, akadai S, V, etc. Mamwe masimbi ane alkaline evhu ane alkaline pasi achaunzwawo, uye mamwe madota achawedzerwa panguva yekufambisa nekuchengetedza, seSi, Fe, Ca. , etc. Zviri mukati mekutsvaga zvinhu mu petroleum coke zvinokanganisa zvakananga hupenyu hwebasa re prebaked anodes uye kunaka uye giredhi ye electrolytic aluminium zvigadzirwa. Ca, V, Na, Ni uye zvimwe zvinhu zvine simba rakasimba rekukonzeresa pane anodic oxidation reaction, iyo inosimudzira yakasarudzika oxidation yeanode, zvichiita kuti anode idonhe slag uye zvivharo, uye kuwedzera kunyanyisa kushandiswa kweanode; Si uye Fe inonyanya kukanganisa kunaka kwealuminiyamu yekutanga, uye Si content inowedzera Ichawedzera kuoma kwealuminium, kuderedza kushandiswa kwemagetsi, uye kuwedzera kweFe content kune simba guru pane plasticity uye corrosion resistance yealuminium alloy. Yakasanganiswa nezvinodiwa chaizvo zvekugadzira zvemabhizinesi, zvirimo zvekutsvaga zvinhu zvakaita seFe, Ca, V, Na, Si, uye Ni mupetroleum coke zvinofanirwa kuve zvishoma.
Volatile nyaya
Iyo yakanyanya kuvhuvhuta yepetroleum coke inoratidza kuti chikamu chisina kubikwa chinotakurwa zvakanyanya. Kuwedzeresa kushanduka kwemukati kunozokanganisa kuwanda kwechokwadi kwecalcined coke uye kuderedza goho chairo recalcined coke, asi huwandu hwakakodzera hwehunyoro hwemukati hunobatsira pakuverengerwa kwepetroleum coke. Mushure mekunge petroleum coke yakaverengerwa pakupisa kwepamusoro, kusvibiswa kwemukati kunoderera. Sezvo vashandisi vakasiyana vaine tarisiro dzakasiyana dzezvinyorwa zvinoshanduka, zvakasanganiswa nezvinodiwa chaizvo zvevagadziri nevashandisi, zvinotemerwa kuti iyo inoshanduka haifanire kudarika 10% -12%.
Ash
Iyo incombustible mineral tsvina (trace elements) yakasara mushure mokunge chikamu chinopisa chepetroleum coke chakapiswa zvachose pasi pemamiriro ekupisa kwepamusoro kwe850 degrees uye kutenderera kwemhepo kunonzi madota. Chinangwa chekuyera madota ndechekuziva zvinyorwa zvemaminerari tsvina (trace elements) Zvakawanda sei, kuitira kuti uongorore kunaka kwepetroleum coke. Kudzora madota emukati kunozodzora zvakare ma trace elements. Yakawandisa madota emukati anozokanganisa kunaka kweanode pachayo uye yekutanga aluminium. Yakasanganiswa nezvinodiwa chaizvo zvevashandisi uye mamiriro chaiwo ekugadzira emabhizinesi, zvinotemerwa kuti madota haafanire kudarika 0.3% -0.5%.
Unyoro
Zvitubu zvakakura zvehuwandu hwemvura mu petroleum coke: Kutanga, apo coke tower inobudiswa, petroleum coke inobudiswa kune coke pool pasi pechiito che hydraulic cutting; chechipiri, kubva pakuona kwekuchengeteka, mushure mokunge coke yabudiswa, petroleum coke isati yanyatsotonhodzwa inoda kupfapfaidzwa kuti itonhorere Chetatu, petroleum coke inosungirirwa mumhepo yakashama mumadziva ecoke nemayadhi ekuchengetera, uye ayo hunyoro hunozokanganiswawo nenharaunda; chechina, petroleum coke ine zvimiro zvakasiyana uye kugona kwakasiyana kuchengetedza unyoro.
Coke content
Saizi yepetroleum coke ine pesvedzero huru pagoho chairo, kushandiswa kwesimba uye calcined coke. Petroleum coke ine yakakwira hupfu coke yemukati ine yakakomba kurasikirwa kabhoni panguva yekuverengera maitiro. Kupfura uye mamwe mamiriro anogona kutungamira zviri nyore kumatambudziko akadai sekupwanya kwekutanga kwemuviri wechoto, kupisa-kupisa, kuvharika kwevharuvhu yekuburitsa, kusununguka uye nyore pulverization yecalcined coke, uye kukanganisa hupenyu hweiyo calciner. Panguva imwecheteyo, iyo yechokwadi density, tap density, porosity, uye simba reiyo calcined coke , Resistivity uye oxidation kuita kune pesvedzero huru. Kubva pane chaiyo mamiriro epamba petroleum coke yekugadzira mhando, huwandu hwehupfu coke (5mm) hunodzorwa mukati me30% -50%.
Shot coke content
Shot coke, inozivikanwawo se spherical coke kana pfuti coke, yakaoma, yakakora uye isina porous, uye iripo muchimiro che spherical yakanyungudutswa masasi. Iyo yepamusoro yepfuti coke yakatsetseka, uye chimiro chemukati hachienderane nekunze. Nekuda kwekushaikwa kwepores pamusoro, kana uchikanya ne binder coal tar pitch, zvinonetsa kuti binder ipinde mukati mecoke, zvichikonzera kusununguka kusungirirwa uye kungoita kukanganisa mukati. Uye zvakare, iyo yekupisa yekuwedzera coefficient yepfuti coke yakakwira, izvo zvingaite nyore kukonzeresa kupisa kutsemuka kana anode yakabikwa. Iyo petroleum coke inoshandiswa mune pre-yakabikwa anode haifanirwe kuve nepfuti coke.
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Nguva yekutumira: Zvita-20-2022