Hauv cov txheej txheem tsim cov graphite electrodes, cov teeb meem kev siv hluav taws xob tuaj yeem daws tau los ntawm kev ntsuas dav dav, suav nrog kev ua kom zoo dua cov txheej txheem, txhim kho kev siv hluav taws xob kom zoo, txhawb kev tswj hwm cov khoom siv, thiab kev siv cov thev naus laus zis txuag hluav taws xob. Cov kev daws teeb meem tshwj xeeb yog raws li nram no:
I. Kev Txhim Kho Cov Khoom Siv Raw Calcination thiab Cov Txheej Txheem Ci
Kev Txhim Kho Ua Ntej Raw Khoom Siv
Thaum lub sijhawm calcination, kev tswj qhov kub thiab txias (1,250-1,350 ° C) thiab lub sijhawm ntev txo cov khoom seem volatiles, txhim kho qhov ruaj khov ntawm cov khoom siv raw, thiab txo qis kev siv zog ci tom qab. Piv txwv li, hloov cov lauj kaub ib txwm muaj nrog cov kilns rotary lossis cov hluav taws xob calcination furnaces tuaj yeem txhim kho kev ua haujlwm thermal los ntawm 10% -15%.
Hauv cov txheej txheem ci, kev ci thib ob lossis ntau qhov impregnations (piv txwv li, peb qhov impregnations thiab plaub qhov ci) sau cov qhov hws, txo qhov porosity ntawm cov khoom tiav, thiab txhim kho qhov ceev thiab lub zog kho tshuab, yog li txo cov khoom siv hluav taws xob.
Kev Txhim Kho Cov Txheej Txheem Impregnation
Nyob rau theem impregnation, kev ua kom zoo dua ntawm kev txhaj tshuaj asphalt (1.2-1.5 MPa) thiab qhov kub (180-200 ° C) txhim kho qhov hnyav ntawm kev txhaj tshuaj (≥14% rau thawj zaug impregnation thiab ≥9% rau qhov thib ob), txo cov naj npawb ntawm kev ci rov ua dua thiab txo qis kev siv hluav taws xob tsis ncaj qha.
II. Kev Txhim Kho Cov Txuj Ci Kho Mob Graphitization
Kev Kho Mob Kub Siab
Thaum lub sijhawm ua graphitization, kev hloov cov chaw rauv Acheson ib txwm muaj nrog cov chaw rauv sab hauv uas muaj cov cua sov sib txuas ua ke (LWG) yuav ua rau lub sijhawm qhib hluav taws xob luv dua (9-15 teev rau cov chaw rauv LWG piv rau 50-80 teev rau cov chaw rauv Acheson) thiab txo kev siv hluav taws xob los ntawm 30%-50%.
Kev tswj qhov kub ntawm cov graphite (2,300-3,000°C) kom raug yuav pab tiv thaiv kom tsis txhob muaj kev pov tseg zog los ntawm kev kub dhau thaum ua kom cov qauv carbon hloov mus ua cov siv lead ua graphite uas muaj peb sab, ua rau muaj kev coj hluav taws xob zoo dua.
Kev Rov Qab Siv thiab Siv Cov Kub Pov Tseg
Thaum lub sijhawm txias ntawm cov cub tawg graphitization, cov cua sov pov tseg raug rov qab los rau cov khoom siv raw ua ntej cua sov lossis tsim dej kub, txo cov kev siv hluav taws xob pab. Piv txwv li, ib lub tuam txhab tau txuag tau ntau dua 500,000 cubic meters ntawm cov roj av txhua xyoo los ntawm lub kaw lus rov qab cua sov pov tseg.
III. Txhim Kho Cov Khoom Siv Tsim Khoom thiab Kev Tswj Xyuas Zog
Kev Txhim Kho Kev Siv Hluav Taws Xob Zoo ntawm Cov Khoom Siv
Kev xaiv cov extruders ua haujlwm siab, cov ntsia hlau extruders, thiab lwm yam khoom siv tsim khoom txo qhov kev poob ntawm kev sib txhuam; kev siv cov thev naus laus zis tsav tsheb zaus sib txawv los tswj qhov ceev ntawm lub cev muaj zog phim cov khoom thauj ntau lawm thiab txo qhov kev siv zog tsis ua haujlwm.
Kev saib xyuas cov khoom siv tseem ceeb tsis tu ncua, xws li cov cub tawg ci thiab cov cub tawg graphitization, ua kom muaj huab cua nruj thiab txo qhov poob cua sov. Piv txwv li, kev txhim kho cov txheej rwb thaiv tsev ntawm lub cub tawg tuaj yeem txo qhov kev siv hluav taws xob ntawm ib lub cub tawg los ntawm 8% -12%.
Kev Saib Xyuas Zog thiab Kev Txhim Kho Kom Zoo
Kev siv Lub Tshuab Tswj Xyuas Zog (EMS) ua rau muaj kev soj ntsuam lub sijhawm tiag tiag ntawm kev siv hluav taws xob, roj, thiab cua sov thoob plaws cov txheej txheem, ua kom zoo dua cov phiaj xwm tsim khoom los ntawm kev tshuaj xyuas cov ntaub ntawv. Piv txwv li, kev hloov kho qhov cub ci khoom raws li kev thov kom tsis txhob muaj cov xwm txheej "ntau dhau".
Kev siv cov tswv yim nqi hluav taws xob hauv hav siab tshaj plaws teem sijhawm rau cov txheej txheem siv hluav taws xob ntau (piv txwv li, graphitization) thaum lub sijhawm tsis yog lub sijhawm siab tshaj plaws kom txo cov nqi hluav taws xob.
IV. Kev Txhawb Nqa Cov Txuj Ci Txuag Hluav Taws Xob thiab Lub Zog Huv Si
Daim Ntawv Thov Kev Siv Tshuab Tsim Kub Qis
Kev hloov cov txheej txheem nias siab ib txwm muaj nrog cov thev naus laus zis kub qis lossis isostatic nias txo qhov kev siv hluav taws xob cua sov. Piv txwv li, ib lub tuam txhab tau txo qhov kev siv hluav taws xob rau ib tuj ntawm electrode forming los ntawm 20% los ntawm cov txheej txheem tsim kub qis.
Kev Hloov Chaw Siv Hluav Taws Xob Huv
Maj mam siv cov roj av thiab cov roj biomass es tsis txhob siv thee hauv cov txheej txheem calcination thiab ci kom txo tau cov pa roj carbon thiab cov nqi zog. Qee lub tuam txhab tau ua tiav ntau dua 60% kev siv roj av, txiav cov pa CO₂ txhua xyoo los ntawm ntau dua 10,000 tons.
Kev Tsim Hluav Taws Xob Kub Pov Tseg thiab Kev Yuav Hluav Taws Xob Ntsuab
Siv cov cua sov pov tseg los ntawm cov cub tawg graphitization rau kev tsim hluav taws xob ua tau raws li qhov xav tau hluav taws xob ib nrab; kev nrhiav hluav taws xob ntsuab (piv txwv li, cua lossis hnub ci zog) txo kev siv roj fossil thiab ua rau muaj cov pa roj carbon tsawg.
V. Kev Siv Kev Tswj Xyuas Kev Txuag Hluav Taws Xob Tag Nrho
Kev Txhim Kho Txoj Kev Npaj Tsim Khoom
Kev sib sau ua ke cov txheej txheem zoo sib xws (piv txwv li, kev sib xyaw ua ke thiab kev ci) txo cov voj voog pib-nres ntawm cov khoom siv thiab txo qis kev siv hluav taws xob thaum tos. Piv txwv li, ib lub tuam txhab tau txuag tau ntau dua 2 lab kWh ntawm hluav taws xob txhua xyoo los ntawm kev ua kom zoo dua ntawm kev teem sijhawm tsim khoom.
Kev Kawm Txuj Ci Txuag Hluav Taws Xob rau Cov Neeg Ua Haujlwm
Kev cob qhia txog kev txuag hluav taws xob tsis tu ncua ua rau cov neeg ua haujlwm paub ntau ntxiv. Piv txwv li, kev ua kom cov txheej txheem pib/kaw cov khoom siv ua haujlwm zoo ib yam thiab kev ua kom cov kev thauj khoom zoo dua tuaj yeem txo cov kev siv hluav taws xob los ntawm 5%-8%.
Cov Ntaub Ntawv Txog Cov Neeg Mob
- Ib Lub Tuam Txhab Loj Graphite Electrode: Los ntawm kev hloov kho mus rau LWG graphitization furnaces, siv EMS system, thiab hloov thee nrog roj av, lub tuam txhab tau txo qis kev siv hluav taws xob tag nrho los ntawm 35%, txo cov pa roj carbon ntawm cov khoom lag luam los ntawm 40%, thiab txuag tau ntau dua $ 7 lab hauv cov nqi txhua xyoo.
- Kev Xyaum Ua Qauv Kev Lag Luam: Qee lub tuam txhab tau ua tiav "ze li xoom carbon" los ntawm kev rov qab siv cov cua sov pov tseg thiab cov qauv kev yuav hluav taws xob ntsuab, ua raws li cov qauv kev tsis muaj carbon thoob ntiaj teb thiab txhim kho kev sib tw ua lag luam.
Lub sijhawm tshaj tawm: Lub Yim Hli-11-2025