Industrial Silicon Processing Technology: Sib tsoo, sib tsoo, tshuaj ntsuam thiab ntxuav
Tso lus
Dab tsi Industrial Silicon Processing Npog
Muaj silicon tawm hauv submerged -arc rauv raws li ib tug ntxhib cam khwb cia blocks uas muaj entrapped slag, nplua thiab deg paug. Kev ua tiav yog qhov ua tiav ntawm cov txheej txheem kev siv tshuab thiab tshuaj lom neeg uas tig qhov thaiv mus rau hauv cov khoom lag luam muag nrog cov kev faib me me thiab cov chemistry uas tau hais tseg. Cov theem tseem ceeb yog crushing, sib tsoo, tshuaj ntsuam, kua qaub ntxuav, desusting thiab ntim, thiab txhua theem yog xaiv raws li daim ntawv thov zaum kawg es tsis siv uniformly rau tag nrho cov khoom.
Lub hom phiaj ntawm cov kab ke tuaj yeem hais tau yooj yim: crushing thiab sib tsoo teeb tsa qhov loj me, kev tshuaj ntsuam xyuas qhov loj me, kev ntxuav cov kua qaub tshem tawm ib feem ntawm cov hlau saum npoo thiab txhuas, dedusting tshem tawm cov nplua uas yuav txwv tsis pub cov khoom huv si, thiab ntim khoom tiv thaiv qhov ua tiav. Ib txoj kab ua tiav yog li tsim rov qab los ntawm cov neeg siv khoom tshwj xeeb.
Crushing thiab sib tsoo
Kev txo qhov luaj li cas yog ib txwm ua nyob rau hauv theem, vim hais tias txo cov cam khwb cia rau ib tug zoo hmoov nyob rau hauv ib kauj ruam nkim zog thiab ua ib tug ntau tshaj ntawm pliaj nplua.
Thawj crushing txo cov cam khwb cia rau lub nrig-sized pieces, feem ntau nrog lub puab tsaig crusher. Lub hom phiaj ntawm theem no yog txhawm rau tso cov pom slag suav nrog kom lawv tuaj yeem raug tshem tawm los ntawm kev sib cais ntawm tes lossis sib nqus sib nqus.
Secondary crushing txo cov khoom ntxiv, feem ntau nrog lub khob hliav qab los yog rauj crusher, tsim cov khoom noj uas haum rau kev tshuaj xyuas rau hauv cov khoom seem.
Kev sib tsoo tsim cov feem zoo. Lub pob zeb los yog lub pendulum zeb yog siv, thiab lub sij hawm nyob rau hauv kev tswj cov khoom zoo li cas.
Kev tshuaj ntsuam nruab nrab ntawm cov theem tshem tawm cov khoom uas twb ua tau raws li qhov tshwj xeeb, kom nws tsis dhau - hauv av. Cov kauj ruam no yog ib txoj hauv kev zoo tshaj plaws los tswj tus nqi ntawm cov hmoov tsis zoo hauv cov khoom lag luam.
Kev tswj kev kis kab mob thaum txo qhov loj yog qhov tseem ceeb. Hnav cov khoom nyob rau hauv lub crushing chamber tso hlau rau hauv cov khoom thaum lawv hnav, yog li kev xaiv ntawm cov khoom siv liner thiab zaus ntawm kev hloov pauv muaj qhov cuam tshuam ncaj qha rau cov ntsiab lus hlau ntawm silicon tiav.
Kev tshuaj ntsuam thiab kev faib loj
Silicon hlau yog muag tawm tsam qhov loj me, tsis yog ib qho loj, thiab qhov ntau yog feem ntau qhia hauv millimeters rau pob khoom thiab hauv mesh rau hmoov.
| Yam khoom | Hom kev loj me | Kev siv tseem ceeb |
|---|---|---|
| Lub pob | 10-50mm, 10-100 hli | Steel deoxidation thiab alloy ntxiv |
| Granular | 1-3 hli, 3-8 mm | Foundry inoculation thiab nruam ntxiv |
| Hmoov, ntxhib | 16-60 mesh | Aluminium alloying, nqus plua plav |
| Hmoov, nruab nrab | 60-120 mesh | General deoxidation thiab alloying |
| Hmoov, zoo | 120-200 mesh | Fast-kev sib ntxiv, cov khoom siv tshuaj lom neeg |
Lub vijtsam vibrating nrog ob lossis peb lub lawj ua rau ntau qhov kev txiav hauv ib qho dhau los. Cov khoom loj loj rov qab mus rau lub zeb thiab cov khoom tsis zoo yog muag raws li qib zoo cais lossis sib xyaw rov qab yog tias qhov tshwj xeeb tso cai rau nws. Vim hais tias txhua kauj ruam kev tshuaj ntsuam siv lub zog thiab tsim ib qho kev poob tawm, tus nqi ntawm cov hmoov nce siab thaum txiav yuav zoo dua.
Acid Ntxuav thiab Purity Kho
Qhov twg cov hlau tsis tshua muaj hlau thiab txhuas cov ntsiab lus yuav tsum tau, crushed silicon yog kho nrog dilute acid thiab ces ntxuav nrog dej huv kom txog thaum lub residual acid raug tshem tawm. Kev kho mob tawm tsam cov hlau- cov theem nplua nuj uas zaum ntawm cov ciam teb nplej thiab yaj ib feem ntawm cov hlau saum npoo, yog li cov khoom siv ntxuav tau tshaj tawm cov ntsiab lus hlau thiab txhuas qis dua li cov khoom qub uas tsis tau ntxuav. Cov nyhuv yog qhov loj tshaj plaws ntawm cov seem zoo, vim tias thaj chaw muaj rau cov kua qaub loj dua.
Peb qhov kev ua tau zoo tswj hwm qhov tshwm sim. Cov kua qaub concentration thiab qhov kub thiab txias txiav txim siab npaum li cas ntawm qhov chaw tawm tsam. Lub sij hawm leaching txiav txim siab seb qhov kev tawm tsam tob npaum li cas. Kev ntxuav thiab ziab cov kauj ruam txiav txim seb puas muaj cov kua qaub lossis cov dej noo nyob hauv qab, ob qho tib si cuam tshuam rau kev siv dej. Cov khoom uas nyob hauv qab - ntxuav tuaj yeem ua rau lub ntim ntim thiab tsim kev phom sij, yog li ziab thiab nruab nrab yog ib feem ntawm cov txheej txheem es tsis yog qhov kev xav tom qab.
Dedusting, ntim thiab tswj kom zoo
Dedusting tshem tawm cov khoom zoo uas tsim los thaum crushing thiab tshuaj ntsuam. Lub hnab lim thiab cyclone separators yog cov khoom siv li niaj zaus, thiab cov plua plav rov qab yog ib txwm muag nyias raws li qib zoo es tsis muab pov tseg.
Kev tshawb nrhiav hlau thiab sib nqus sib nqus tshem tawm cov khoom tawg ntawm cov khoom siv crushing uas yuav txwv tsis pub tshwm sim raws li cov hlau paug hauv cov khoom tiav.
Cov qauv kev npaj thiab kev txheeb xyuas paub meej tias cov khoom silicon, hlau, txhuas thiab calcium ntawm txhua pawg ua ntej nws tso tawm. Ib qib yog ib qho kev cog lus hais txog chemistry, yog li cov txiaj ntsig kev tshuaj ntsuam tswj hwm daim ntawv qhia qib es tsis yog kev teeb tsa.
Kev ntim khoom yog xaiv los ntawm cov khoom lag luam: cov khoom siv hauv cov hnab ntim ntau lossis cov nruas, cov hmoov hauv cov ntim ntim cov dej noo- cov hnab thaiv kom tsis txhob muaj plua plav thiab khaws- noo noo.
Traceability cov ntaub ntawv txuas ib pawg xa mus rau nws lub cub tawg ntau thiab rau nws cov kev tshuaj ntsuam thiab ntxuav cov ntaub ntawv, uas yog qhov tso cai rau tus neeg siv khoom daws teeb meem nrog cov ntaub ntawv tsis yog nrog kev sib cav.
Qib Chemistry thiab Ua Lub Hom Phiaj
Txoj kev ua haujlwm raug xaiv kom mus txog qib uas tau teev tseg, thiab qib yog txhais los ntawm qhov siab tshaj plaws tau tso cai hlau, txhuas thiab calcium cov ntsiab lus. Cov lus hauv qab no teev cov chemistry uas cov qib tseem ceeb xav tau.
| Qib | Si (%) min | Fe (feem pua max) | Al (feem pua max) | Ca (%) |
|---|---|---|---|---|
| Silicon hlau 2202 | 99.58 | 0.2 | 0.2 | 0.02 |
| Silicon hlau 3303 | 99.37 | 0.3 | 0.3 | 0.03 |
| Silicon hlau 411 | 99.4 | 0.4 | 0.1 | 0.1 |
| Silicon hlau 421 | 99.3 | 0.4 | 0.2 | 0.1 |
| Silicon hlau 441 | 99.1 | 0.4 | 0.4 | 0.1 |
| Silicon hlau 551 | 98.9 | 0.5 | 0.5 | 0.1 |
| Silicon hlau 553 | 98.7 | 0.5 | 0.5 | 0.3 |
Nyeem ua ke, cov qhab nia qhia tias vim li cas qhov kev ua tiav qhov tob ua raws li qhov tshwj xeeb. Kev txav los ntawm 553 mus rau 441 yuav tsum nruj dua aluminium thiab calcium txwv thiab tuaj yeem ua tiav nrog kev xaiv cov khoom siv raw thiab kev tshuaj xyuas. Kev ncav cuag 411 lossis 421 xav tau kev tswj hwm aluminium nruj dua, uas nyob rau hauv lem xav tau qis -aluminium reductant thiab cov cuab yeej kuaj xyuas huv. Kev ncav cuag 2202 yuav tsum muaj kev tswj hwm ib txhij ntawm tag nrho peb cov impurities thiab feem ntau yog kev txhawb nqa los ntawm kev ntxuav cov kua qaub, ntxiv kev sib cais thiab kev ua haujlwm siab melting. Lwm cov tshuaj muaj pes tsawg leeg thiab qhov loj me tuaj yeem tsim los txiav txim thaum tus neeg siv khoom tshwj xeeb txawv ntawm cov qauv qib.
Cov lus nug nquag
Q: Dab tsi yog cov kauj ruam tseem ceeb hauv kev lag luam silicon ua?
Qhov sib lawv liag yog thawj thiab theem nrab crushing, sib tsoo, nruab nrab thiab zaum kawg kev tshuaj ntsuam, kua qaub ntxuav qhov twg tsis muaj hlau los yog txhuas cov ntsiab lus yuav tsum tau, desusting, hlau nrhiav, sampling thiab tsom xam, thiab thaum kawg ntim. Txoj kev tshwj xeeb raug xaiv kom haum rau qib thiab qhov loj me uas tus neeg siv khoom tau teev tseg.
Q: Vim li cas kev sib tsoo thiab kev tshuaj ntsuam ua tiav hauv ntau tshaj ib theem?
Ib qho kev txo qis ib kauj ruam pov tseg lub zog thiab tsim kev nplua ntau dhau. Kev tshuaj ntsuam ntawm theem tshem tawm cov khoom uas twb ua tau raws li qhov tshwj xeeb, yog li nws tsis dhau - hauv av, thiab qhov loj dua yog xa rov qab mus rau lub zeb. Qhov no ua rau qhov loj me me nyob rau hauv kev tswj hwm thiab txo qhov poob ntawm cov khoom muag muag.
Q: Acid ntxuav ua tau li cas?
Dilute acid leaching tawm tsam hlau- nplua nuj theem ntawm qhov chaw thiab raws li cov ciam teb ntawm cov silicon crushed, ces cov khoom yog ntxuav thiab qhuav. Qhov tshwm sim yog qhov qis dua ntawm cov hlau thiab txhuas cov ntsiab lus, nrog rau qhov loj tshaj plaws ntawm cov feem zoo vim tias lawv nthuav tawm ntau qhov chaw.
Q: Qhov loj ntawm silicon hlau qhia li cas?
Cov khoom ntim tau piav qhia hauv millimeters, xws li 10-50 mm, thaum hmoov tau piav qhia hauv mesh, xws li 16-200 mesh. Cov khoom siv granular zaum ntawm ob thiab feem ntau tau piav qhia hauv millimeters, piv txwv li 1-3 hli lossis 3-8 hli rau kev siv hauv tsev.
Q: Puas yog kev ua haujlwm hloov cov ntsiab lus silicon?
Kev ua haujlwm tsuas yog hloov pauv qhov loj me thiab qhov chaw chemistry. Cov ntsiab lus ntawm silicon ntawm ib qib yog tsim los ntawm cov nqi hluav taws xob ntau thiab qhov txo qis, thaum crushing, tshuaj ntsuam thiab ntxuav yog siv los ua kom cov hlau thiab txhuas qib nyob rau hauv qhov txwv ntawm qib tso cai.
Q: Qib twg yuav tsum tau ua qhov tob tshaj plaws?
Cov qib xws li 2202, uas txwv cov hlau, txhuas thiab calcium nyob rau tib lub sijhawm, yuav tsum tau ua tib zoo xyaum: xaiv cov khoom tsis zoo - tsis huv, ntxuav crushing thiab tshuaj ntsuam cov cuab yeej, thiab feem ntau yog cov kua qaub ntxuav thiab sorting ntxiv. Cov qib txheem xws li 553 xav tau tsuas yog crushing, tshuaj xyuas thiab desusting.
Q: Cov khoom zoo li cas tau txheeb xyuas ua ntej xa zaub mov?
Txhua batch yog kuaj thiab soj ntsuam rau silicon, hlau, txhuas thiab calcium, thiab sib nqus sib nqus thiab kuaj hlau yog siv los tshem tawm cov hlau tawg tau qhia los ntawm kev hnav cov khoom siv crushing. Qhov kev soj ntsuam tshwm sim ntau dua li qhov txheej txheem kev teeb tsa txiav txim siab qib uas tau tshaj tawm.
