Cov teeb meem kev siv hluav taws xob thiab cov pa roj carbon hauv kev tsim cov graphite electrodes tuaj yeem ua kom zoo dua los ntawm cov kev daws teeb meem ntau yam hauv qab no:
I. Sab Khoom Siv Raw: Kev Txhim Kho Cov Qauv thiab Kev Hloov Kho Cov Tshuab
1. Kev Hloov Koob Coke thiab Kev Txhim Kho Qhov Sib Piv
Cov electrodes graphite uas muaj zog heev xav tau cov koob coke (muaj crystallinity siab thiab coefficient nthuav dav thermal qis), tab sis nws cov khoom siv siv zog ntau dua li cov roj av coke. Kev kho qhov piv ntawm koob coke rau roj av coke (piv txwv li, 1.1–1.2 tons ntawm koob coke ib tuj ntawm cov khoom siv hluav taws xob siab) tuaj yeem txo cov khoom siv hluav taws xob thaum tswj kev ua tau zoo. Piv txwv li, cov electrodes loj 600mm uas muaj zog heev uas tsim hauv Chenzhou txo cov pa CO₂ los ntawm kev ua haujlwm luv luv ntawm lub cub tawg hluav taws xob arc steelmaking ntau dua 70% los ntawm kev ua kom zoo dua ntawm cov khoom siv raw.
2. Kev Ua Haujlwm Zoo Dua ntawm Cov Khoom Siv Binder
Cov thee tar pitch, siv ua cov khoom sib txuas thiab suav txog 25% -35% ntawm cov khoom siv raw, tsuas yog tso 60% -70% cov khoom seem tom qab ci. Kev siv cov khoom sib txuas hloov kho lossis ntxiv cov nanofillers tuaj yeem txhim kho kev ua haujlwm ntawm kev sib txuas, txo kev siv cov khoom sib txuas, thiab txo cov pa phem thaum ci.
II. Sab Txheej Txheem: Kev Txuag Hluav Taws Xob thiab Kev Txo Kev Siv Hluav Taws Xob
1. Kev Siv Hluav Taws Xob Graphitization Zoo Tshaj Plaws
- Lub Cub Hluav Taws Xob Graphitization Sab Hauv: Piv rau cov cub hluav taws xob Acheson ib txwm muaj, qhov no txo qhov kev siv hluav taws xob los ntawm 20% -30% los ntawm kev cua sov cov electrodes ua ke nrog cov khoom siv tiv taus, txo qhov poob cua sov.
- Kev Siv Tshuab Graphitization Kub Qis: Tsim cov catalysts tshiab lossis ua kom cov txheej txheem kho cua sov zoo dua kom txo qhov kub ntawm graphitization ntawm 2,800 ° C mus rau qis dua 2,600 ° C, txo kev siv hluav taws xob ib tuj los ntawm 500–800 kWh.
- Cov Txheej Txheem Rov Qab Kub Uas Pov Tseg: Siv cov cua sov pov tseg ntawm lub cub tawg graphitization rau cov khoom siv raw ua ntej lossis tsim hluav taws xob txhim kho kev ua haujlwm thermal los ntawm 10% -15%.
2. Kev Hloov Roj Rau Ci
Kev hloov cov roj hnyav lossis cov roj thee nrog cov roj av ntuj ua rau kev hlawv hluav taws xob zoo dua 20% thiab txo cov pa CO₂ los ntawm 15%–20%. Cov cub tawg ci ua haujlwm zoo nrog cov thev naus laus zis cua sov ua rau lub voj voog ci luv dua, txo kev siv roj los ntawm 10%–15%.
3. Kev Siv Impregnation thiab Filler Recycling
Cov tshuaj loog impregnation uas tau hloov kho (0.5–0.8 tons ib tuj ntawm cov electrodes) tuaj yeem txo cov voj voog impregnation los ntawm kev siv tshuab nqus tsev. Cov nqi rov ua dua ntawm cov coke metallurgical lossis quartz xuab zeb fillers ncav cuag 90%, txo qis kev siv cov khoom siv pabcuam.
III. Sab Khoom Siv: Kev Txhim Kho Txawj Ntse thiab Loj
1. Cov Cub Hluav Taws Xob Loj thiab Kev Tswj Xyuas Tsis Siv Neeg
Cov cub hluav taws xob loj loj uas muaj zog heev (UHP) uas muaj cov txheej txheem tswj kev cuam tshuam thiab kev saib xyuas hauv lub cub tawg txo cov nqi tawg ntawm cov hluav taws xob kom qis dua 2% thiab txo qis kev siv hluav taws xob ib tuj los ntawm 10% -15%. Cov txheej txheem xa hluav taws xob ntse hloov kho qhov hluav taws xob arc thiab cov ncov tam sim no raws li cov qib hlau thiab cov txheej txheem, zam kev poob oxidation reactive.
2. Kev Tsim Kab Ntau Lawm Tsis Tu Ncua
Kev tsim khoom tas mus li txij thaum pib mus txog thaum kawg, txij li thaum muab cov khoom siv raw zom mus txog thaum ua tiav, txo qhov kev siv hluav taws xob nruab nrab. Piv txwv li, cua sov los yog hluav taws xob hauv cov txheej txheem sib tov txo qhov kev siv hluav taws xob ib tuj ntawm 80 kWh mus rau 50 kWh.
IV. Cov Qauv Zog: Lub Hwj Chim Ntsuab thiab Kev Tswj Xyuas Carbon
1. Kev Siv Hluav Taws Xob Rov Ua Dua Tshiab
Kev tsim cov nroj tsuag hauv cov cheeb tsam nplua nuj nyob rau hauv lub hnub ci lossis cua zog thiab siv hluav taws xob ntsuab rau graphitization (suav txog 80% -90% ntawm tag nrho cov hluav taws xob tsim tawm) tuaj yeem txo cov pa roj carbon ib tuj los ntawm 4.48 mus rau qis dua 1.5 tons. Cov txheej txheem khaws cia hluav taws xob sib npaug qhov kev hloov pauv ntawm lub grid, txhim kho kev siv hluav taws xob ntsuab.
2. Kev Ntxes, Siv, thiab Khaws Cov Pa roj Carbon (CCUS)
Kev ntes CO₂ uas tso tawm thaum lub sijhawm ci thiab graphitization rau kev tsim cov lithium carbonate lossis cov roj hluavtaws ua rau muaj kev siv cov pa roj carbon rov qab tau.
V. Txoj Cai thiab Kev Koom Tes Hauv Kev Lag Luam
1. Kev Tswj Xyuas Peev Xwm thiab Kev Koom Ua Lag Luam
Txwv tsis pub muaj peev xwm tshiab uas siv hluav taws xob ntau thiab txhawb kom muaj kev sib sau ua ke ntawm kev lag luam (piv txwv li, Fangda Carbon muaj 17.18% feem ntawm kev ua lag luam) siv kev lag luam kom txo tau kev siv hluav taws xob. Kev txhawb kom muaj kev sib koom ua ke ntsug, xws li Fangda Carbon muab 67.8% ntawm cov coke calcined thiab koob coke, txo kev siv hluav taws xob thauj khoom siv raw.
2. Kev Lag Luam Carbon thiab Kev Nyiaj Txiag Ntsuab
Kev suav nrog cov nqi carbon rau hauv tus nqi khoom lag luam txhawb kom txo cov pa phem. Piv txwv li, tom qab Nyiv Pooj pib tshawb nrhiav kev tiv thaiv kev pov tseg ntawm cov hluav taws xob graphite hauv Suav teb, cov tuam txhab hauv tsev tau hloov kho cov thev naus laus zis kom txo cov se carbon. Kev tshaj tawm cov ntawv cog lus ntsuab txhawb nqa kev kho dua tshiab uas txuag hluav taws xob, xws li ib lub tuam txhab txo nws cov nuj nqis-rau-cov cuab tam los ntawm kev sib pauv nuj nqis-rau-kev sib koom ua lag luam thiab nyiaj txiag rau lub cub tawg graphitization kub qis R&D.
VI. Kev Kawm Txog Cov Ntaub Ntawv: Cov Kev Txo Qhov Pa Tawm ntawm Chenzhou's 600mm Electrodes
Kev Txuj Ci: Kev kho kom zoo dua ntawm cov koob coke + lub cub tawg graphitization sab hauv + kev rov qab los ntawm cov cua sov pov tseg.
Kev Sib Piv Cov Ntaub Ntawv:
- Kev siv hluav taws xob: Txo ntawm 5,500 kWh/ton mus rau 4,200 kWh/ton (↓23.6%).
- Cov pa roj carbon: Txo los ntawm 4.48 tons/ton mus rau 1.2 tons/ton (↓73.2%).
- Cov Nqi: Cov nqi zog ntawm ib chav tsev tau txo qis 18%, ua rau kev sib tw ua lag luam zoo dua.
Xaus lus
Los ntawm kev siv cov khoom siv raw kom zoo, kev tsim kho tshiab, kev txhim kho khoom siv, kev hloov pauv zog, thiab kev sib koom tes txoj cai, kev tsim cov graphite electrode tuaj yeem ua tiav 20% -30% qis dua kev siv zog thiab 50% -70% txo cov pa roj carbon. Nrog rau kev tshawb pom tshiab hauv kev ua graphitization kub qis thiab kev siv hluav taws xob ntsuab, kev lag luam tau npaj siab kom muaj cov pa roj carbon ntau tshaj plaws los ntawm xyoo 2030 thiab ua tiav cov pa roj carbon neutrality los ntawm xyoo 2060.
Lub sijhawm tshaj tawm: Lub Yim Hli-06-2025