Xi'an Huachan moollurgical Technical Technology Co {}}, ltf} Yog cov khoom siv hluav taws xob, xws li cov khoom siv hluav taws xob ua haujlwm, xws li kev siv hluav taws xob ntawm hluav taws xob (LF) Cov tshuab hluav taws xob, thiab submerged arc rauv (kev nyab xeeb).
Kev lag luam hlau tau undergone qhov kev hloov pauv loj dhau lub xyoo dhau los, hloov chaw ntawm cov txheej txheem sib xyaw ua ke kom muaj zog thiab kev hloov pauv ntawm qhov kev hloov pauv no yog hluav taws xob tshuab hluav taws xob (EAF Steel Ua), uas tam sim no tus as khauj ntau dua 70% ntawm cov hlau tsim hauv cov} thiab ze li 30% thiab ze li ntawm 30%.
Tab sis yog vim li cas eafs li ntawd tau saws? Dab tsi ua rau lawv zoo dua rau cov txheej txheem steelmaking hauv ntau cov ntawv thov? Cov ntawv no tshawb pom cov ntsiab lus tseem ceeb ntawm EAF steelmaking, suav nrog cov txiaj ntsig tau zoo, thiab daws tau lawv cov kev txwv .
Qhov laj thawj thawj: Seem hlau rov ua dua tshiab
Yuav siv EAFs siv cov scrap hlau
Tsis zoo li cov tshuab hluav taws kub tawg, coke, thiab lim hwv lub zog hluav taws xob muaj ntau txoj kev muaj hnub no .
Tus nqi sib xyaw:
80-100}% seem steel
Cov neeg xaiv ntxiv: Direc), kub briquetted hlau (HBI), lossis npua hlau rau kev tswj kom zoo
Cov txheej txheem melting:
Graphite hluav taws xob tsim cov arcs ntawm 1,600-2, {000℃(2,632℃f) .
Kev Ua Ntawv Cog Khoom Ua Haujlwm (Oxygen Lancing, Kev Tsim Kom Zoo Nkauj) tshem cov impurities .
Yog vim li cas scrap-based steelmakaking
- Txo cov kev pheej hmoo tsuas yog (1 tuj ntawm seem txuag 1 {.}} tons ntawm hlau ore).
- Txiav coo kev npaj los ntawm 75% piv rau cov tshuab hluav taws xob tawg (thoob ntiaj teb lub koom haum ua haujlwm) .
- Kev haus dej tsawg dua (~ {350-400 Kuv tsis muaj {}}} ~ 20 gj / tuj hauv bf-bof txoj kev) {}}
"EAFs yog tus caj qaum ntawm kev lag luam ncig ntawm cov hlau, tig mus xaus-ntawm-lub neej tshiab steel {}}"- Hlau siv rov ua dua tshiab
Zog txuag hluav taws xob kev lag luam & cov nqi txuag nyiaj
Txo cov nqi ua haujlwm
-
Tsis muaj coke ncu lossis cov nroj tsuag supens xav tau (txo cov peev txheej siv tau) .
- Cov kauj vab ntau lawm (EAFs tuaj yeem yaj hlau nyob rau 40-60 feeb vs. 6 {} .
- Hloov tau lub hwj chim soadcing (tuaj yeem siv cov hluav taws xob hluav taws xob, txuas ntxiv, lossis hybrid system) {0.
Kev Sib Piv: EAF VS . lub zog race zog siv hluav taws xob
|
Yam tseem ceeb |
Eaf | Moj Tej Siab Sov (Bf-Bof) |
|---|---|---|
|
Zog Khoom |
Hluav Taws Xob + Qee Cov Roj | Coke, thee, roj nkev |
|
Kev Siv Zog |
350-400 KWH / TUJ | ~ 20 gj / tuj (~ 5,500 kwh / tuj) |
|
CO₂ Emissions |
~ 0.5 Tuj Coos / Tuj Hlau | ~ 2.0 tonse CO₂ / Tuj Hlau |
(Source: U {. s} s. Department of Zog, 2022)
Yooj Yim Ntau Lawm
Kev Pib Ceev & Kaw
Moj ua hluav taws xob ua kom tawg yuav tsum tau khiav mus tsis tu ncua (shutdowns siv lub lis piam) {.
EAF tuaj yeem muab hloov / tawm hauv cov xuaj moos, yoog raws kev lag luam xav tau thiab nqi hluav taws xob .
Ntau hom qib steel
Thaum kev coj ua rau cov khoom lag luam ntev (Rebar, Hlau Qws), tam sim no EAFs khoom tam sim no:
Tiaj-dov hlau (ntawm nyias-slab casting)
Cov neeg tshwj xeeb alloys (stainless, cuab yeej hlau) thaum ua ke nrog ladle rauv (LF) thiab nqus plua plav (VOD).
Mini-Zeb Kom Zoo Dua
EAF-based mini-mills tuaj yeem ua haujlwm tau txiaj ntsig ntawm 500, {}}}}} tons / xyoo mus yuav tsum tau {{}
Cov txiaj ntsig pab ib puag ncig & kev tswj hwm kev ua raws
Txo cov kab mob
75% qis dua cov pa hluav taws dua bf-bof .
Tsis muaj coking thee yuav tsum tau (tshem tawm methane thiab leej fajrfur emissions) .
Emission Tswj thev naus laus zis
Niaj hnub tam sim EAFS ua ke:
- Boshouse lim (ntes 99% ntawm hmoov av) .
- Carbon txhaj tshuaj (txo nx) .
- Seem preheated (cuts zog siv los ntawm 15-20%) .
Cov Hom Phiaj Huab Cua nrog Ntiaj Teb Huab Cua
EU cov pa roj carbon ciam tshuab hloov kho tshuab (CBAM) faviss tsawg-emission eaf hlau {}}
Green EAFs (Powered by Tshiab dua + Hydrogen) yog tawm .
Kev nce qib thev naus laus zis hauv EAF
SEAR EAFS (AI & Automation)
Kev kwv yees melting algorithms ua kom lub zog siv .
Cov kev cai ntawm cov tshuab ua kom tau noj kom tau noj .
Hybrid Ehaf tsim
Oxy-roj burters boosters boost lart tus nqi .
Dri / HBI sib raug zoo txhim kho cov hlau zoo .
Kev tsim kho yav tom ntej
Hydrogen-based EAFS (XOOM-carbon steelmaking) .
Ntshav-tau pab melting (siab dua ua haujlwm) .
Txwv ntawm EAF steelmaking
Thaum EAFs Dominate Scrap-based ntau lawm, lawv muaj qee qhov kev txwv:
- SCRAP txoj kev cia siab (paug zoo li cu / sn tuaj yeem tsis muaj zog hlau) .
- Cov nqi siab dua hauv cov cheeb tsam nrog kim hluav taws xob .
- Txwv ntxiv cov roj hluav taws xob roj siab-huv cov steel ntau yam tsis muaj lwm yam ntxiv ua kom .
Fais Arc rauv taws ua kom nrawm dua, huv si, thiab yoog raws li cov kev ua hluav taws xob ua kom tawg, ua rau lawv zoo tshaj rau:
✔ SCRAP-THAWJ HLOOV HLOOV
✔ qis-loj Mini-Mills
Kev txiav txim siab txog kev sib tw
Raws li Steelmakers ntsej muag cov txheej txheem kev cai thiab nce lub zog siv hluav taws xob, peb pab neeg txhim kho nrog kev siv tshuab ua kev cai thiab kev sib txuas lus sib xws.
Ntawv Sawv cev
Lub Koom Haum Ntiaj Teb Hlau (2023) .Hlau steel muaj tswv yim.
Lub Koom Haum Koom Tes Thoob Ntiaj Teb (2022).Hlau Thiab Hlau Technology Roubmap.
U . s} s. doe (2022) .Kev coj ua zoo tshaj plaws hauv EAF steelmaking.
Lub koom haum hlau ua dua tshiab (2023). Kev Lag Luam Nyiaj Txiag.
Tiv Tauj Peb
Xi'an Huachan Metallurgical Technology Co ., ltd .
Chaw nyob: 9 pem teb, tsev C / Vanmetropolis, tsis muaj .1 Tangyan Rd. gaoxin koog tsev kawm ntawv, Xianxi xeev, Suav
Tel: +86 029 8886 4421
Mob & Wechat & Whatsapp: +86 18729567376
Fev: +86 029 8886 2650
E-mail:sales3@xahcdl.com/ candiceyang@xahcdl.com
Lub Vev Xaib:www . hc-rauv . com
Kom paub meej ntxiv, tiv tauj peb pawg neeg tshaj lij kom tau txais cov kev daws teeb meem zoo tshaj plaws rau koj qhov project .