Ua ib qho ntawm cov hlau uas siv ntau tshaj plaws hauv ntiaj teb, hlau ore yog ib qho khoom siv tseem ceeb rau kev tsim hlau thiab hlau. Tam sim no, cov peev txheej hlau ore tab tom poob qis, uas muaj cov hlau lean ntau dua piv rau cov hlau nplua nuj, cov hlau cuam tshuam ntau dua, thiab cov khoom sib xyaw ua ke. Hlau feem ntau raug rho tawm ntawm nws cov hlau, hu ua hematite lossis magnetite, los ntawm cov txheej txheem hu ua hlau ore beneficiation. Cov kauj ruam tshwj xeeb uas koom nrog hauv kev rho tawm hlau hauv kev lag luam tuaj yeem sib txawv nyob ntawm qhov xwm txheej ntawm cov hlau thiab cov khoom xav tau, tab sis cov txheej txheem dav dav feem ntau cuam tshuam nrog cov theem hauv qab no:
Kev khawb av
Cov hlau ore deposits yog thawj zaug txheeb xyuas los ntawm kev tshawb nrhiav. Thaum pom ib qho deposits uas tseem muaj, cov ore raug rho tawm hauv av siv cov txheej txheem khawb av xws li qhib-qhov lossis hauv av khawb av. Lub sijhawm pib no yog qhov tseem ceeb vim nws teeb tsa theem rau cov txheej txheem rho tawm tom ntej.
Kev Sib Tsoo thiab Kev Sib Tsoo
Cov hlau uas tau rho tawm lawm ces yuav raug tsoo ua tej daim me me kom yooj yim rau kev ua ntxiv. Feem ntau kev tsoo yog ua los ntawm kev siv lub tshuab tsoo hlau los yog lub tshuab tsoo hlau cone, thiab kev sib tsoo yog ua los ntawm kev siv lub tshuab sib tsoo hlau los yog lub tshuab sib tsoo pob. Cov txheej txheem no ua rau cov hlau ua hmoov zoo, ua rau nws yooj yim dua rau kev tuav thiab ua cov txheej txheem tom ntej.
Kev Sib Cais Sib Nqus
Cov hlau nplaum feem ntau muaj cov khoom tsis huv lossis lwm yam minerals uas yuav tsum tau tshem tawm ua ntej nws siv tau rau hauv kev tsim hlau thiab hlau. Kev sib cais sib nqus yog ib txoj kev siv ntau los cais cov hlau nplaum sib nqus ntawm cov uas tsis yog sib nqus. Cov hlau nplaum muaj zog, xws li Huate magnet separator, yog siv los nyiam thiab cais cov hlau nplaum me me ntawm cov gangue (cov khoom tsis xav tau). Cov kauj ruam no yog qhov tseem ceeb rau kev txhim kho qhov huv ntawm cov hlau nplaum.
Kev pab txhawb nqa
Kauj ruam tom ntej yog kev siv cov hlau kom zoo, qhov twg lub hom phiaj yog kom muaj hlau ntau ntxiv los ntawm ntau txoj kev. Cov txheej txheem no yuav suav nrog kev ntxuav, kev tshuaj ntsuam, thiab kev sib cais ntawm lub ntiajteb txawj nqus kom tshem tawm cov khoom tsis huv thiab txhim kho qhov zoo ntawm cov hlau. Kev siv cov hlau kom zoo kuj tuaj yeem suav nrog kev ua kom cov hlau ntab, qhov twg cov tshuaj ntxiv rau hauv cov hlau kom ua rau cov hlau ntab thiab sib cais ntawm cov khoom seem.
Pelletizing los yog Sintering
Thaum cov hlau tau raug ua kom zoo lawm, tej zaum yuav tsum tau muab cov hlau me me sib sau ua ke rau hauv cov loj dua kom ua tau zoo dua. Kev ua kom cov hlau me me sib xyaw ua ke yog tsim cov hlau me me los ntawm kev sib xyaw cov hlau nrog cov khoom ntxiv xws li limestone, bentonite, lossis dolomite. Sintering, ntawm qhov tod tes, cuam tshuam nrog kev ua kom cov hlau me me sov nrog rau cov fluxes thiab coke breeze los tsim cov hlau semi-fused hu ua sinter. Cov txheej txheem no npaj cov hlau rau kauj ruam kawg ntawm kev rho tawm los ntawm kev txhim kho nws cov khoom siv lub cev thiab cov yam ntxwv ntawm kev tuav.
Kev ua hlau
Kauj ruam kawg ntawm txoj kev rho tawm yog kev smelting, qhov twg cov hlau ore raug cua sov hauv lub cub tawg nrog rau coke (roj carbonaceous) thiab limestone (uas ua haujlwm ua cov kua dej). Qhov kub heev ua rau cov hlau ore tawg ua cov hlau molten, uas sau rau hauv qab ntawm lub cub tawg, thiab slag, uas ntab rau saum thiab raug tshem tawm. Cov hlau molten tom qab ntawd raug pov rau hauv ntau yam duab, xws li ingots lossis billets, thiab ua tiav ntxiv kom tau txais cov hlau thiab cov khoom hlau xav tau.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias cov chaw tso hlau sib txawv thiab cov chaw ua cov hlau yuav muaj kev hloov pauv hauv cov txheej txheem tshwj xeeb uas siv, tab sis cov ntsiab cai tag nrho tseem zoo sib xws. Kev rho hlau los ntawm cov hlau yog ib qho txheej txheem nyuaj thiab ntau kauj ruam uas xav tau kev tswj hwm cov peev txheej thiab thev naus laus zis zoo. Kev suav nrog cov khoom siv siab heev xws li Huate magnet separator txhim kho kev ua haujlwm zoo thiab zoo ntawm cov txheej txheem sib cais, kom ntseeg tau tias cov khoom kawg ua tau raws li cov qauv tsim nyog rau kev tsim hlau thiab hlau.
Lub sijhawm tshaj tawm: Lub Xya Hli-08-2024