Nov yog cov lus txhais ua lus Askiv ntawm cov ntawv sau no:
Yuav ua li cas Graphitized Petroleum Coke ua tiav qhov nce ntxiv ntawm 75% mus rau ntau dua 95%, ua rau "Kev Siv Cov Khoom Siv Tag Nrho"
Cov roj av coke uas muaj graphitized tau ua tiav qhov kev tshawb pom tshiab hauv kev nce nws tus nqi nqus los ntawm 75% mus rau ntau dua 95% los ntawm tsib txoj hauv kev tseem ceeb: kev xaiv cov khoom siv raw, kev kho graphitization kub siab, kev tswj qhov loj me ntawm cov khoom me me, kev ua kom zoo dua qub, thiab kev siv cov khoom siv ncig. Txoj hauv kev "siv cov peev txheej tiav" no tuaj yeem sau ua ke raws li hauv qab no:
1. Kev Xaiv Khoom Siv Raw: Tswj Cov Khoom Tsis Huv Ntawm Qhov Chaw
- Cov khoom siv raw uas tsis muaj sulfur ntau, cov tshauv tsawg
Xaiv cov roj av coke zoo lossis cov roj coke koob uas muaj cov sulfur tsawg dua 0.8% thiab cov tshauv tsawg dua 0.5%. Cov khoom siv raw uas muaj sulfur tsawg tiv thaiv sulfur los ntawm kev tsim cov pa roj sulfur dioxide thaum kub siab, txo cov pa roj carbon poob, thaum cov tshauv tsawg txo cov kev cuam tshuam los ntawm cov khoom tsis huv thaum lub sijhawm yaj. - Kev kho ua ntej ntawm cov khoom siv raw
Los ntawm kev tsoo, kev ntsuas qib, thiab kev ua cov txheej txheem, cov khoom loj thiab cov khoom tsis huv raug tshem tawm kom ntseeg tau tias cov khoom me me sib npaug, tso lub hauv paus rau kev ua graphitization tom qab.
2. Kev Kho Mob Graphitization Kub Siab: Rov Tsim Kho Cov Pa roj Carbon Atoms
- Cov txheej txheem graphitization
Siv lub cub tawg Acheson lossis lub cub tawg graphitization sab hauv, cov khoom siv raw raug kho ntawm qhov kub siab tshaj 2,600 ° C. Qhov no hloov cov pa roj carbon atoms los ntawm kev teeb tsa tsis sib xws mus rau hauv cov qauv lamellar, mus txog lub lattice siv lead ua ntawm graphite thiab ua kom cov pa roj carbon reactivity thiab solubility zoo dua. - Kev tshem tawm cov sulfur
Thaum kub siab, cov sulfur raug tso tawm ua cov pa sulfur dioxide, txo cov sulfur kom txog li 0.01% -0.05% thiab zam kev cuam tshuam tsis zoo rau lub zog thiab kev tawv ntawm cov hlau. - Kev kho kom zoo ntawm porosity
Graphitization tsim cov qauv porous hauv cov pa roj carbon, ua rau porosity nce thiab muab ntau txoj hauv kev rau cov pa roj carbon yaj hauv cov hlau molten, ua kom nrawm dua.
3. Kev Tswj Qhov Loj Me Me Uas Tseeb: Sib phim Cov Kev Xav Tau Melting
- Kev ntsuas qhov loj ntawm cov khoom me me
Qhov loj ntawm cov khoom me me raug tswj hwm hauv 0.5–20 hli raws li hom khoom siv yaj (piv txwv li, cov cub tawg hluav taws xob lossis cov khob) thiab cov txheej txheem xav tau:- Cov cub hluav taws xob (<1 tuj): 0.5–2.5 hli kom tiv thaiv kev oxidation los ntawm cov khoom me me dhau.
- Cov cub hluav taws xob (>3 tons): 5–20 hli kom tsis txhob muaj teeb meem yaj los ntawm cov khoom me me uas ntxhib dhau.
- Kev faib tawm ntawm cov khoom me me sib xws
Cov txheej txheem tshuaj ntsuam thiab kev ua kom zoo nkauj ua kom muaj qhov loj me ntawm cov khoom me me sib xws, txo qhov kev hloov pauv ntawm qhov nqus uas tshwm sim los ntawm kev hloov pauv ntawm qhov loj me.
4. Kev Txhim Kho Cov Txheej Txheem: Txhim Kho Kev Nqus Tau Zoo
- Lub sijhawm ntxiv thiab cov txheej txheem
- Txoj kev ntxiv hauv qab: Hauv cov cub hluav taws xob nruab nrab, 70% ntawm cov pa roj carbon tau muab tso rau hauv qab ntawm lub cub tawg thiab nias kom nruj, nrog rau cov seem ntxiv rau hauv cov khoom siv thaum nruab nrab ntawm cov txheej txheem kom txo qis kev poob oxidation.
- Ntxiv cov khoom ua pawg: Rau kev siv hluav taws xob los ua kom sov, cov pa roj carbon tau ntxiv rau hauv cov khoom ua pawg thaum lub sijhawm them; rau kev siv cupola los ua kom sov, lawv tau ntxiv tib lub sijhawm nrog rau kev them hluav taws xob los xyuas kom meej tias muaj kev sib cuag tag nrho nrog cov hlau yaj.
- Kev tswj cov txheej txheem yaj
- Kev tswj qhov kub thiab txias: Kev tswj qhov kub thiab txias ntawm 1,500–1,550°C pab txhawb kev yaj ntawm cov pa roj carbon.
- Kev khaws cia kub thiab kev do: Tuav rau 5-10 feeb nrog kev do nruab nrab ua rau cov pa roj carbon diffusion sai dua thiab tiv thaiv kev sib cuag nrog cov neeg sawv cev oxidizing xws li hlau xeb lossis slag.
- Kev hloov kho cov qauv
Ntxiv manganese ua ntej, tom qab ntawd carbon, thiab thaum kawg silicon txo cov teebmeem inhibitory ntawm silicon thiab sulfur ntawm kev nqus carbon, ua kom cov carbon sib npaug ruaj khov.
5. Kev Siv Txhua Lub Voj Voog thiab Kev Tsim Khoom Ntsuab: Ua Kom Cov Khoom Siv Zoo Tshaj Plaws
- Kev rov ua dua tshiab ntawm cov electrode pov tseg
Cov electrodes graphite uas siv tas lawm raug tsim dua tshiab ua cov pa roj carbon nrog tus nqi rov qab tau 85%, txo cov khoom siv pov tseg. - Cov kev xaiv uas siv biomass
Cov kev sim siv cov thee hmoov av uas siv cov plhaub xibtes hloov cov roj av coke ua rau muaj kev sib xyaw ua ke uas tsis muaj carbon thiab txo kev siv cov khoom siv fossil. - Cov txheej txheem tswj ntse
Kev soj ntsuam cov pa roj carbon hauv online los ntawm kev tshuaj xyuas spectral thiab 5G IoT-raws li kev pub mis kom raug (yuam kev <±0.5%) ua kom cov txheej txheem tsim khoom zoo dua thiab txo qhov ntxiv ntau dhau.
Cov Txiaj Ntsig Txog Kev Siv Tshuab thiab Kev Cuam Tshuam Hauv Kev Lag Luam
- Kev nqus tau zoo dua: Los ntawm cov kev ntsuas no, qhov kev nqus ntawm cov pa roj carbon graphitized petroleum coke tau nce ntxiv los ntawm 75% (cov pa roj carbon calcined ib txwm muaj) mus rau ntau dua 95%, ua rau kev siv cov pa roj carbon zoo dua.
- Cov khoom zoo dua: Cov yam ntxwv ntawm cov leej faj tsawg (≤0.03%) thiab cov nitrogen tsawg (80–250 PPM) tiv thaiv cov qhov tsis zoo ntawm cov casting porosity thiab txhim kho cov khoom siv kho tshuab (piv txwv li, qhov nyuaj, tiv taus kev hnav).
- Cov txiaj ntsig zoo rau ib puag ncig thiab kev lag luam: Cov pa roj carbon dioxide ib tuj ntawm cov khoom siv ua kom cov pa roj carbon dioxide raug txo los ntawm 1.2 tons, ua raws li cov qauv kev tsim khoom ntsuab. Lub caij no, cov nqi nqus siab dua txo cov kev siv cov khoom siv ua kom cov pa roj carbon dioxide, txo cov nqi tsim khoom.
Los ntawm kev siv qhov kawg-rau-kawg kev tswj hwm zoo, graphitized roj av coke ua tiav "kev siv cov peev txheej tag nrho," muab kev lag luam metallurgical nrog kev daws teeb meem zoo, qis carbon-nce carbon thiab tsav lub sector mus rau kev txhim kho zoo, ruaj khov.
Cov lus txhais no khaws qhov tseeb ntawm kev siv tshuab thaum ua kom cov neeg nyeem thoob ntiaj teb hauv kev tshawb fawb txog hlau thiab cov khoom siv tau yooj yim nyeem. Qhia rau kuv paub yog tias koj xav tau kev txhim kho!
Lub sijhawm tshaj tawm: Lub Peb Hlis-31-2026