Dab tsi yog qhov pib cov khoom siv rau hluav taws xob tshuab hluav taws xob (EAF)?

Cov txheej txheem hluav taws xob hluav taws xob (EAF) yog ib qho kev siv EAF ntau li cas los xij, cov ntaub ntawv ntxiv xws li cov hlau txo cov hlau (DRI), Npua hlau, lossis txawm tias cov hlau hlau kuj tseem tuaj yeem siv. Cov txheej txheem loj, thiab ua li cas lawv pab ua cov hlau zoo {}}

SMRAP hlau yog los ntawm kev tshaj plaws thiab cov khoom lag luam pib rau covEAF Steel Ua, Accounting rau ib ncig ntawm 70-75% ntawm cov khoom siv raw los ntawm cov khoom siv hluav taws xob xws li qhia rau hauv qhov cub ua ntej ua ntej tshaj tawm .

Vim li cas cov qauv steel?

1.}} Kev Ncaj Ncees: Siv cov txheej txheem siv hlau mining
{{02. Tus nqi-ua tau zoo: txij li kev xaiv ntawm cov khoom lag luam zoo li cov hlau ua kom muaj txiaj ntsig, nws yog cov hlau muaj txiaj ntsig zoo li cov kab ntawv sib txawv .
3. Cov hlau tswj tau sib txawv tuaj yeem tswj hwm cov neeg ua haujlwm met cov roj ntsha .

Hom Seem Siv

{1.}} Siv Hauv Tsev Seem: steel tsim nyob rau hauv tib lub chaw (e {} g}, luas secrap los ntawm kev tsim cov txheej txheem) {}}}}
2.} SMRAP qhia los ntawm kev ua haujlwm, xws li kev tsim khoom lossis kev tsim kho.
3.} Tsis muaj ob qho tib si ntawm lub neej, xws li cov tsheb qub, cov cuab yeej qub, thiab cov vaj tse {3}

Ntxiv nrog rau cov qauv ntawm cov hlau, cov hlau kom tsawg (DRI), tseem hu ua daim txhuam cev hlau, yog lwm cov khoom siv tseem ceeb siv nyob rau hauvEAF Steel Ua.} dri yog tsim los ntawm cov roj ntsha kom txo cov ee lossis es tsis txhob siv cov pa roj teeb los hloov cov hlau .

       Vim li cas DRI?

1.Supplementing Scrap: In regions where scrap availability is limited or of poor quality, DRI is an important supplement, providing a more consistent quality of iron for steelmaking.
2.} Cov ntsiab lus txawv txawv cov ntsiab lus: DRI muaj qis dua cov hlau uas muaj tsawg dua.
3.} Kev Lom Zem: Kev Siv Txoj Haujlwm Hydrogen (raug xa mus rau cov tshuaj tua hluav taws xob tsawg dua ") yog cov tshuaj lom neeg sib xws

DRI ntau lawm

{1.} Hlau ore: Hlau Ore Ua tiav rau cov roj av txo qis, ua kom tshem tawm oxygen, ua dri .
2.}}}}} Siv nyob rau EAF: Thaum DRI yog pub rau hauv EAF, qhov twg nws tau melted thiab kho kom tsim hlau {}}

Npua hlau yog lwm cov khoom siv raw uas tuaj yeem siv rau hauv EAF txheej txheem, uas nws tsis tshua muaj cov hlau thiab cov roj ntsha, leej faj, thiab phosphorus.

Vim li cas npua hlau?

{{0 {}}} Ntxiv rau Scrap: Hlau Hlau tuaj yeem siv los ntxiv rau cov steel hlau, tshwj xeeb hauv cov steel muaj peev xwm ua tau kom tau raws li cov hlau uas muaj peev xwm ua tau zoo {}
2.}} tswj cov ntsiab lus carbon: uas yuav pab tau cov ntsiab lus carbon, uas yuav tsum muaj txiaj ntsig rau cov pa roj carbon, uas yuav tsum muaj cov pa roj carbon ntau dua {}}
3.} Cov khoom muag tau nce ntxiv lossis thaum cov khoom kub dhau los yog qhov ntsuas kub dhau los yog cov khoom siv steel rau cov khoom lag luam steel {}}

Txawm hais tias tsis muaj ntau yam li cov qauv steel, hlau ore kuj tseem siv tau hauvEAF Steel Ua, tshwj xeeb tshaj yog thaum seem lossis seem tsis muaj .} e hlau ore yog feem ntau tsim cov hlau hauv ib daim ntawv zoo ib yam li dri .

Vim li cas hlau ore?

{{01. Khoom Siv Ntxiv: Hauv cov khoom siv uas yog tsis txaus, nws yuav tsum tau siv cov khoom siv hlau ua kom siv tau rau hauv ib daim ntawv siv tau zoo li Dri .
2. Tus nqi txiav txim siab tus nqi: Siv cov ore hlau tuaj yeem siv dua tshiab rau cov kev ua kom rov qab sib luag, tshwj xeeb yog cov hlau luam ntxiv rau {}}

Ntxiv rau cov ntaub ntawv nyoos (seem, dri, npua hlau, lossis pab ua kom zoo dua qub), lossis pab ua kom zoo nkauj .

Cov tshuaj ntxiv

{{01. txiv qaub (caoo): siv los tshem tawm impurities xws li sulphorus los ntawm kev tsim sag .
2. fluorspar (CEf2): ntxiv rau qis dua melting point ntawm slag thiab txhim kho nws cov kua dej .
{{03. boron, chromium, manganese: cov khoom siv tshwj xeeb xws li muaj lub zog, haloy, thiab corrosion tsis kam .

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{{02. h}.} hauv cov khoom siv hluav taws xob ua tshuab, vol}}} {{5 5}}
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