1. Hlau silicon yog dab tsi?
Cov hlau silicon, tseem hu ua silicon kev lag luam, yog cov khoom ntawm kev smelting silicon dioxide thiab cov neeg sawv cev carbonaceous txo qis hauv lub cub tawg submerged arc. Cov khoom tseem ceeb ntawm silicon feem ntau yog siab dua 98.5% thiab qis dua 99.99%, thiab cov khoom tsis huv seem yog hlau, txhuas, calcium, thiab lwm yam.
Hauv Suav teb, cov hlau silicon feem ntau muab faib ua ntau qib xws li 553, 441, 421, 3303, 2202, 1101, thiab lwm yam, uas tau sib txawv raws li cov ntsiab lus ntawm hlau, txhuas thiab calcium.
2. Daim ntawv thov ntawm cov hlau silicon
Cov kev siv tom qab ntawm cov hlau silicon yog feem ntau yog silicon, polysilicon thiab txhuas alloys. Xyoo 2020, Tuam Tshoj tag nrho kev siv yog li ntawm 1.6 lab tons, thiab qhov piv ntawm kev siv yog raws li nram no:
Silica gel muaj qhov yuav tsum tau ua siab rau cov hlau silicon thiab xav tau qib tshuaj lom neeg, sib raug rau tus qauv 421 #, ua raws li polysilicon, cov qauv siv feem ntau 553 # thiab 441 #, thiab qhov yuav tsum tau ua ntawm txhuas alloy yog qis heev.
Txawm li cas los xij, nyob rau xyoo tas los no, qhov kev thov rau polysilicon hauv cov organic silicon tau nce ntxiv, thiab nws qhov sib piv tau loj dua thiab loj dua. Qhov kev thov rau cov hlau txhuas tsis yog tsuas yog tsis nce ntxiv, tab sis tau txo qis. Qhov no kuj yog ib qho tseem ceeb uas ua rau lub peev xwm tsim cov hlau silicon zoo li siab, tab sis tus nqi ua haujlwm qis heev, thiab muaj qhov tsis txaus ntawm cov hlau silicon zoo hauv kev ua lag luam.
3. Txheej xwm tsim khoom xyoo 2021
Raws li cov ntaub ntawv txheeb cais, txij lub Ib Hlis mus txog rau Lub Xya Hli 2021, Tuam Tshoj cov hlau silicon xa tawm tau txog 466,000 tons, nce ntxiv 41% txhua xyoo. Vim tias tus nqi qis ntawm cov hlau silicon hauv Suav teb hauv ob peb xyoos dhau los, ua ke nrog kev tiv thaiv ib puag ncig thiab lwm yam laj thawj, ntau lub tuam txhab lag luam kim heev muaj cov nqi ua haujlwm qis lossis raug kaw ncaj qha.
Xyoo 2021, vim muaj txaus, qhov kev ua haujlwm ntawm cov hlau silicon yuav siab dua. Lub zog fais fab tsis txaus, thiab qhov kev ua haujlwm ntawm cov hlau silicon qis dua li xyoo dhau los. Cov kev thov silicon thiab polysilicon tsis txaus xyoo no, nrog rau tus nqi siab, qhov kev ua haujlwm siab, thiab kev thov hlau silicon nce ntxiv. Cov yam ntxwv dav dav tau ua rau muaj kev tsis txaus ntawm cov hlau silicon.
Plaub, qhov sib txawv ntawm cov hlau silicon yav tom ntej
Raws li qhov xwm txheej ntawm kev muab khoom thiab kev thov uas tau tshuaj xyuas saum toj no, qhov sib txawv yav tom ntej ntawm cov hlau silicon feem ntau nyob ntawm kev daws teeb meem ntawm cov yam ntxwv yav dhau los.
Ua ntej tshaj plaws, rau kev tsim cov zombie, tus nqi tseem siab, thiab qee qhov kev tsim cov zombie yuav rov pib dua, tab sis nws yuav siv sijhawm ib ntus.
Qhov thib ob, qhov kev txwv tsis pub siv hluav taws xob tam sim no hauv qee qhov chaw tseem tab tom ua. Vim tsis muaj hluav taws xob txaus, qee lub Hoobkas silicon tau raug ceeb toom txog kev txiav hluav taws xob. Tam sim no, tseem muaj cov cub tawg silicon uas tau kaw, thiab nws nyuaj rau kho lawv dua hauv lub sijhawm luv luv.
Qhov thib peb, yog tias tus nqi hauv tsev tseem siab, kev xa khoom yuav tsum txo qis. Tuam Tshoj cov hlau silicon feem ntau raug xa tawm mus rau cov tebchaws Es Xias, txawm hais tias nws tsis tshua muaj xa tawm mus rau cov tebchaws European thiab Asmeskas. Txawm li cas los xij, kev tsim khoom lag luam silicon hauv Tebchaws Europe tau nce ntxiv vim yog tus nqi thoob ntiaj teb siab tsis ntev los no. Ob peb xyoos dhau los, vim yog Tuam Tshoj qhov txiaj ntsig ntawm tus nqi hauv tsev, Tuam Tshoj txoj kev tsim cov hlau silicon muaj qhov zoo dua, thiab qhov ntim xa khoom loj heev. Tab sis thaum tus nqi siab, lwm thaj chaw kuj tseem yuav ua rau muaj peev xwm tsim khoom ntau ntxiv, thiab kev xa khoom yuav txo qis.
Tsis tas li ntawd xwb, hais txog qhov kev thov downstream, yuav muaj ntau silicon thiab polysilicon tsim tawm hauv ib nrab xyoo tom ntej. Hais txog polysilicon, lub peev xwm tsim khoom uas tau npaj tseg hauv peb lub hlis twg ntawm lub xyoo no yog li ntawm 230,000 tons, thiab tag nrho qhov kev thov rau hlau silicon yuav yog li ntawm 500,000 tons. Txawm li cas los xij, kev ua lag luam khoom kawg yuav tsis siv lub peev xwm tshiab, yog li qhov kev ua haujlwm tag nrho ntawm lub peev xwm tshiab yuav txo qis. Feem ntau, qhov tsis txaus ntawm cov hlau silicon yuav txuas ntxiv mus rau xyoo, tab sis qhov sib txawv yuav tsis loj heev. Txawm li cas los xij, hauv ib nrab xyoo tom ntej, cov tuam txhab silicon thiab polysilicon uas tsis koom nrog hlau silicon yuav ntsib teeb meem.