Q1. Vim li cas qhov kub thiab txias ua lub luag haujlwm txiav txim siab hauv FeV50 rov qab?
FeV50 dissolves zoo tsuas yog thaum cov yaj muab lub zog thermal txaus los rhuav tshem cov khoom sai thiab sib npaug.
Thaum siab dua tapping lossis ladle kub:
kev tawg sai dua,
oxidation poob qis dua,
V tseem nyob rau hauv kev daws ntev txaus los tsim VC / VN thaum downstream refining.
Ntawm qhov kub thiab txias, FeV50 yuav yaj tsis sib npaug, ua rau:
cov hnab looj tes tsis muaj zog,
nce oxidation nyob ze ntawm slag-hlau interface,
qeeb homogenization nyob rau hauv lub ladle.
Qhov no yog vim li cas mills feem ntau cuam tshuam txog kev rov qab los ntawm vanadium ncaj qha nrog tapping qhov rais kub.
Q2. Ua li cas slag chemistry cuam tshuam tus cwj pwm ntawm vanadium thaum lub sij hawm yaj?
Slag tuaj yeem tiv thaiv lossis haus vanadium.
Ob qho kev sib cuam tshuam tseem ceeb tshaj plaws:
Oxidizing slag
Siab dua FeO / MnO qib txhawb V oxidation, rub vanadium mus rau theem slag.
Slag viscosity & thickness
Ib txheej tuab lossis tuab slag tuaj yeem ntxiab FeV50 hais, ua kom tawg qeeb thiab ua rau lub sijhawm sib cuag nrog oxygen.
Ib qho yooj yim saib:
| Slag condition | Qhov cuam tshuam rau V rov qab |
|---|---|
| Siab FeO / oxidizing | Kev rov qab qis dua; nce vanadium poob. |
| Nruab nrab FeO | ruaj khov thiab twv tau. |
| Thick, viscous slag | Kev tawg qeeb qeeb; tsis sib xws yield. |
| Nyias, kua slag | Kev tawg sai dua; zoo dua kev faib tawm. |
Stable slag chemistry yog ib qho ntawm feem txhim khu kev qha kwv yees ntawm muaj zog vanadium yield.
Q3. Puas yog FeV50 particle loj cuam tshuam rau V rov qab?
Yog-Qhov kev faib tawm loj yog ib qho tseem ceeb tshaj plaws.
Fineer hais (<10 mm)yaj sai sai tab sis oxidize yooj yim dua, txo kev rov qab.
Oversize pieces (>50 or >60 hli)yaj maj mam thiab tej zaum yuav mus lig rau lub qhov rais refining.
Standard ntau yam (10-50mm / 10-60mm)muab qhov zoo tshaj plaws sib npaug ntawm thaj chaw saum npoo thiab melting ceev.
Kev faib tawm loj tsis sib xws ua rau tsis sib xws thiab hloov pauv rov qab los ntawm cov cua sov mus rau cua sov.
Q4. Lub sijhawm ntxiv cuam tshuam li cas vanadium yield?
Qhov twg thiab thaum twg FeV50 ntxiv txiav txim siab npaum li cas oxygen nws ntsib thiab nws sib tov zoo npaum li cas.
Thaum tapping:
Muaj zog turbulence txhim kho dispersion thiab yaj kev sib cuag → rov zoo dua.
Early ladle theem:
Lub sijhawm txaus rau kev tawg; qis oxygen → ruaj khov rov qab.
Late ladle theem:
Lub qhov rais txwv kev tawg; oxidation ntau dua → txo rov qab.
Qee lub mills raug nplua - kho lub sijhawm ntxiv raws li lub tshuab ua cua sov tsis yog siv txoj cai ruaj khov.
Q5. Dab tsi ua haujlwm ua haujlwm pab kom ruaj khov FeV50 rov qab los ntawm cov cua sov?
Mills uas tsis tu ncua ua tiav cov txiaj ntsig zoo yuav siv plaub yam kev coj ua haujlwm:
| Kev xyaum ua haujlwm | Kev cuam tshuam rau kev rov qab los |
|---|---|
| Khaws lub qhov rais tapping kub | Ua kom muaj kev tawg sai thiab ruaj khov V tuav. |
| Tswj slag oxidation theem | Txo vanadium poob mus rau theem slag. |
| Siv nqaim, kwv yees qhov loj me faib | Ua kom lub sijhawm sib cais tsis tu ncua. |
| Ntxiv alloy thaum lub sij hawm sib tov muaj zog | Txhim kho kev tawg thiab txo oxidation. |
Cov kev coj ua no tseem ceeb tshaj qhov me me ntawm qhov feem pua ntawm vanadium lossis qib impurity.
txog Peb
Yog tias koj tab tom sim ua kom ruaj khov vanadium rov qab hauv BOF lossis EAF txoj kev, qhov txiaj ntsig zoo tshaj plaws los ntawm kev sib koom teskub, slag chemistry, granularity, thiab ntxiv sij hawm-tsis tso siab rau ib qho kev ntsuas.
Peb muab FeV40, FeV50, FeV60, thiab FeV80 nrog kev tswj qhov loj me uas tsim los rau kev kwv yees kev sib cais thiab muaj zog V yields.
Yog hais tias koj xav tau ib tug yaj- txoj kev- sib tw cov lus pom zoo los yog cov lus hais meej, tsuas yog qhia:
qib / qhov loj / qhov ntau / qhov chaw / lub qhov rais xa khoom.
Tom qab ntawd kuv tuaj yeem npaj qhov kev lees paub meej ua ke nrog cov ntaub ntawv COA kom ntxaws.
