Cov txheej txheem ntawm Smelting Metallic Silicon Nrog Silicon Oxide Minerals yog Slag Dawb txheej txheem

Cov tshuaj silicon smelting yuav tsum nruj xaiv ntawm silica, uas tsis tsuas yog yuav tsum tau cov ntsiab lus impurity uas tsis muaj impurity, tab sis kuj yuav tsum tau muaj zog txhua yam, txaus thermal stability, thiab tsim nyog particle loj muaj pes tsawg leeg. Nws yog qhov zoo tshaj plaws los siv silica rau cov tshuaj silicon smelting. Ntuj cov ntaub ntawv ntawm silica muaj xws li ywj siab quartz minerals, los yog raws li pob zeb yuav luag tag nrho tsim ntawm silica - silica, los yog sandstone nyob rau hauv daim ntawv ntawm silica. Cov impurities thiab adhesives nyob rau hauv silicon oxide minerals siv nyob rau hauv zus tau tej cov tshuaj silicon yog kiag li txo, ib feem txo, thiab ib co nkag mus rau hauv cov khoom silicon nyob rau hauv daim ntawv ntawm cov tebchaw los yog tsim slag thaum lub sij hawm smelting txheej txheem. Qhov no tsis tsuas yog ua kom lub zog noj, txo cov khoom zoo, tab sis kuj tsim teeb meem hauv cov txheej txheem smelting. Yog li ntawd, cov kev cai nruj yuav tsum tau muab tso rau ntawm cov tshuaj muaj pes tsawg leeg ntawm silica uas muaj cov ntxhia hauv cov tshuaj silicon smelting. SiO2 yuav tsum ntau dua 99 feem pua, Fe2O3 yuav tsum tsawg dua 0.15 feem pua, Al2O3 yuav tsum tsis txhob ntau tshaj 0.2 feem pua, CaO yuav tsum tsis txhob ntau tshaj 0.1 feem pua ​​, thiab tag nrho cov nqi ntawm impurities yuav tsum tsis pub tshaj 0.6 feem pua ​​. Cov silica siv yuav tsum tau ntxuav nrog dej thiab qhov chaw ntxuav ua ntej melting.
Lub silica nkag mus rau hauv lub cub tawg yuav tsum muaj qee qhov me me. Qhov loj me me ntawm silica yog ib qho tseem ceeb ntawm cov txheej txheem smelting. Qhov loj me me ntawm silica yog cuam tshuam los ntawm ntau yam xws li hom silica, lub tshuab hluav taws xob, lub peev xwm, kev ua haujlwm, thiab hom thiab qhov loj me ntawm cov neeg ua haujlwm txo qis, thiab yuav tsum tau txiav txim siab raws li cov xwm txheej tshwj xeeb smelting. Feem ntau, 6300KVA peb-theem hluav taws xob rauv (ua tiav hauv Dawu Silicon Plant hauv 1983) yuav tsum muaj silica particle loj ntawm 8-100 hli, 3200KVA peb-theem hluav taws xob rauv yuav tsum muaj silica particle loj ntawm 8-80 hli, thiab cov kev faib ua feem ntawm nruab nrab particle loj muaj pes tsawg leeg yog loj. Thaum cov particle loj dhau lawm, nws yog ib qho yooj yim uas yuav ua rau unreacted silica nkag mus rau hauv cov kua silicon vim tsis muaj peev xwm hloov mus rau cov khoom sticking thiab cov tshuaj tiv thaiv ceev ntawm ramming rauv, uas ua rau ib tug nce nyob rau hauv slag ntim, nyuaj rau lub cub tawg. , txo silicon rov qab tus nqi, nce kev siv zog, thiab txawm tias qhov nce hauv qhov cub hauv qab, cuam tshuam rau kev tsim khoom ib txwm muaj. Yog hais tias qhov loj me me dhau lawm, txawm hais tias nws tuaj yeem ua rau kom qhov chaw sib cuag ntawm tus neeg sawv cev txo qis thiab pab txhawb kev txo cov tshuaj tiv thaiv, cov roj uas tsim tawm thaum lub sij hawm cov txheej txheem tshuaj tiv thaiv tsis tuaj yeem ua kom yooj yim tawm, uas yuav ua rau cov tshuaj tiv thaiv qeeb. Cov nplej hla dhau teev. Cov impurities coj los rau hauv yuav nce ntxiv, cuam tshuam rau cov khoom zoo. Silica feem ntau me dua 5 hli yuav tsum tsis txhob siv hauv kev tsim khoom.