Kev lag luam hlau tab tom ua haujlwm hloov pauv, EQUE} Txawm li cas los xij, EAFs} Txawm li cas los xij kev siv hluav taws xob ntawm EAF, thiab li cas Nws puas tuaj yeem ua tau zoo?
Hauv cov blog no, peb yuav tshawb txog cov intricaces ntawm EAF Zog cuam tshuam, cov lus qhia no yuav muab cov kws tshaj lij tshwj xeeb, lossis cov kws tshaj lij kev tsim kho kom zoo rau koj,
Cov hauv paus: Yuav ua li cas EAFs ua haujlwm thiab vim li cas lub zog
Fais arc rauv taws kub yaj cov hlau los yog siv hluav taws xob zoo dua li ntawm cov hluav taws xob sib xyaw ua ke ntau lub zog-txuag thiab emit txog 75% tsawg dua bowered los ntawm txuas ntxiv hluav taws xob.
Qhov tseem ceeb mecharics rau EAFS:
- Hluav taws xob: feem ntau 350-450 kWw ib tev ntawm cov kua hlau .
- Tshuaj hluav taws xob: cov roj nkev lossis cov pa roj oxygen yuav ntxiv 50-150 kwh / tuj .
- Tag Nrho Cov Hluav Taws Xob
Tau qhov twg los: Koom Haum Ntiaj Teb Hlau Koom Tes (2022)
Rhuav tshem EAF Zog siv
Kom nkag siab siv zog sivEAF Steel Ua, cia dissect cov txheej txheem rau hauv peb ntu:
Theem 1: Them thiab Melting (70-80% ntawm tag nrho lub zog)
Thawj zaug melting ntawm seem steel noj cov zog tshaj plaws .}} yam cuam tshuam cov theem no muaj xws li:
- SEEM ZOO: Huv si, ntom SCRAP melts sai dua li cov khoom tsis huv lossis oxidized-zoo seem yuav nce lub zog los ntawm 10-15% {4} {4
- Kev suav sau: Siv Dri lossis kub briquetted hlau (HBI) yuav tsum muaj lub zog ntxiv vim yog cov xim ntau dua oxygen {}}
- Preheating systems: siab siab zoo li consteel ® lossis co cov chaw ua kom sov seem uas siv hluav taws xob tawm ntawm 20% .
Theem 2: Ua kom zoo (15-25% ntawm lub zog)
Thaum ua kom zoo dua, impurities zoo li phosphorus thiab leej faj raug tshem tawm {}}}}}}}}}}}}}}}}}}}}}}
Theem 3: Tapping thiab Kev Kub tshuaj (5-10% ntawm lub zog)
Cov kev coj ua tapping thiab cov teeb tsa zoo li ua kom muaj cua sov, ua kom muaj qhov kub thiab txias thaum hloov pauv {}}
Piv txwv EAF efficiency: Koj sib piv li cas?
Kev Siv Hauv Ntiaj Teb Rau EAF sib txawv raws li kev coj ua ntawm cheeb tsam thiab thev naus laus zis:
| Cheeb tsam | AVG . Zog Siv (KWh / Tuj) | Tus cuam tshuam loj |
|---|---|---|
| North America | 380–420 | Siab Seem Zoo, Automation |
| Yu Laus teb | 400–450 | Nruj cov txheej txheem cai tswjfwm |
| Axias | 420–500 | Xyaw seem / dri siv |
Cov Ntaub Ntawv: Thoob Ntiaj Teb Lub Zog Txheej Txheem (IAA), 2023
Kev Kawm Kev Kawm:Tus Turkish Steelmaker txo lub zog noj ntawm 480 txog 410 txog 410 los ntawm kev txhim kho ultra-high-high-power sorting {{4}
Txiav-ntug thev naus laus zis txo EAF Zog Zog Siv
Kev ua kom muaj kev tsim kho tau tsav ua yeeb yam zoo hauv EAF kev ua haujlwm:
a) Tus txheej txheem ntse tswj cov tshuab
Ai-powered tshuab xws li Tennova zoo li Tennova zoo li Tenova's ® Zoo siab Ac ruaj khov, thiab lub zog faib tawm ntawm lub sijhawm tiag tiag, kev sib faib hluav taws xob siv los ntawm 5-8%.
B) Hybrid Zog Zog
Ua ke ua ke lub zog txuas ntxiv (e {{.}, hnub ci khoom siv rau cov pob zeb fossil
c) nkim kev yooj yim
Txais kev tso pa roj cua sov los tsim cov pa roj lossis preheat preheat tuaj yeem txhim kho ntau tshaj thev naus laus zis 'EAF QUANATHIES' EAF QUANAT FOURTACIFIES Qhov no mus txog rau txoj kev no.
d) foamy slag xyaum
Txhaj tshuaj carbon thiab cov pa oxygen tsim cov tshuaj insulating slag
Lub luag haujlwm ntawm cov khoom siv raw: seem vs .} dri
Koj txoj kev xaiv ntawm feedstock ncaj qha cuam tshuam lub zog xav tau:
100% seem-raws li EAFS:
Zog siv: 350-400 kwh / tuj
Pros: Tus nqi qis, nrawm tau melting
Cons: Txwv los ntawm scrap muaj / zoo
DRI / HBI-ERHANCED EAF:
Zog siv: 450-550 kWh / tuj
Pros: tsim cov hlau siab-huv
Cons: Muaj Zog Zog thiab Coos hneev taw
Tswv yim:Blending 30% dri nrog scrap sib npaug zoo thiab txuag hluav taws xob .
EAF technology nyob qhov twg EAF Technology taub hau?
Hydrogen-powered EAF:Cov haujlwm sim siv hydrogen ua tus neeg sawv cev txo tuaj yeem tshem tawm kev ua haujlwm sib xyaw los ntawm DRI ntau lawm.
DC ARC FURNACES:Ncaj qha tam sim no cov kev siv hluav taws xob txo cov electridode thiab lub zog no poob los ntawm 5-7%.
Kev sib xyaw ua ke Eccular:Nroog Tsuas thiab Tsav Tsheb Ai-Tsav Txheeb Xyuas yuav txhim kho Fixedscectic sib txuam .
Thaum EAFs twb muaj zog ntau dua li cov txheej txheem ib txwm muaj, thiab txhim kho cov khoom siv hluav taws xob nce ntxiv, thiab ua kom zoo dua li ntawm kev siv hluav taws xob muaj peev xwm ua kom tau nyiaj ntau dua li 300 tawm ntawm lub cev ib zaug ntxiv.}
Ntawm Xi'an Hucang, peb ua tshwj xeeb hauv kev tsim EAF system ua kom nkim cov txheej txheem kev kho kom zoo rau cov kev daws teeb meem sai sai
Npaj kom txhij los hloov koj cov haujlwm steelmakaking? Hu rau peb hnub no los tshawb nrhiav li cas peb cov thev naus laus zis txuas ntxiv tuaj yeem ua pov thawj rau koj cov nroj tsuag.
Ntawv Sawv cev
Lub Koom Haum Ntiaj Teb Hlau .} (2022) .Zog siv hauv kev lag luam steel.
Lub Chaw Ua Haujlwm Thoob Ntiaj Teb Thoob Ntiaj Teb Kev Tshaj Tawm Thoob Ntiaj Teb Thoob Ntiaj TebHlau Thiab Hlau Technology Roubmap.
Tenana . (2021) .NEONEF AN: Ai-tsav kev txhim kho rau cov hluav taws xob arc.
SSAB . (2023) .Hybrit: Fossil-Dawb Steel Ntau Lawm.
Tiv Tauj Peb
Xi'an Huachan Metallurgical Technology Co ., ltd .
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