Hauv cov txheej txheem tseem ceeb ntawm kev tsim khoom lag luam, kev thauj khoom siv yeej ib txwm ntsib teeb meem xws li kev hnav thiab xeb. Cov kav dej ib txwm muaj lub neej ua haujlwm luv luv thiab cov nqi kho siab, uas cuam tshuam rau kev ua haujlwm zoo. Kev tshwm sim ntawmsilicon carbide hnav-resistant yeeb nkab, nrog lawv cov kev ua tau zoo heev, tau dhau los ua "riam phom" los daws qhov teeb meem no thiab muab kev tiv thaiv rau kev thauj mus los hauv kev lag luam.
Silicon carbide, ua ib yam khoom siv tsis yog hlau uas tsim los ntawm cov khoom siv inorganic, muaj ib qho "tawv". Nws qhov tawv yog qhov thib ob tom qab pob zeb diamond, thiab nws qhov kev tiv thaiv kev hnav ntau dua li cov kav dej ib txwm muaj xws li cov kav hlau thiab cov kav dej ceramic. Txawm tias thaum thauj cov khoom siv hnav siab uas muaj ntau cov hmoov av thiab hmoov av, nws tuaj yeem tiv taus kev yaig thiab ua kom ntev lub neej ntawm cov kav dej. Tib lub sijhawm, silicon carbide kuj muaj kev tiv thaiv kub thiab tiv thaiv corrosion zoo heev. Nws tsis yooj yim puas tsuaj los ntawm cov xov xwm hnyav xws li cov pa roj kub siab, cov kua qaub thiab alkali muaj zog, uas tso cai rau nws ua lub luag haujlwm ruaj khov hauv ntau yam lag luam xws li metallurgy, kev lag luam tshuaj lom neeg, fais fab, kev khawb av, thiab lwm yam.
Piv nrog cov kav dej ib txwm muaj, cov kav dej silicon carbide uas tsis yooj yim hnav tsis yog tsuas yog "ruaj khov", tab sis kuj coj cov txiaj ntsig zoo rau cov lag luam. Vim nws lub neej ntev dua, cov lag luam tsis tas yuav hloov cov kav dej ntau zaus, uas tsis yog tsuas yog txo lub sijhawm tsis ua haujlwm rau kev saib xyuas xwb tab sis kuj txo cov nqi zog thiab cov khoom siv. Tsis tas li ntawd, phab ntsa sab hauv ntawm cov kav dej silicon carbide yog du, nrog kev tiv thaiv kua qis, uas tuaj yeem txo qhov poob zog thaum thauj mus los thiab pab cov lag luam ua tiav cov hom phiaj txuag hluav taws xob thiab txo kev siv.
Niaj hnub no, vim tias kev tiv thaiv ib puag ncig ntsuab tau dhau los ua qhov sib txawv ntawm kev txhim kho kev lag luam, qhov zoo ntawm cov kav dej silicon carbide hnav-resistant yog qhov tseem ceeb dua. Nws muaj ntau yam khoom siv raw, tsawg kawg nkaus ua qias tuaj thaum lub sijhawm tsim khoom, thiab tuaj yeem rov ua dua tom qab raug pov tseg, uas ua tau raws li qhov yuav tsum tau ua ntawm kev txhim kho kom ruaj khov. Tib lub sijhawm, nws cov yam ntxwv ua haujlwm ruaj khov mus sij hawm ntev kuj txo cov kev phom sij ib puag ncig xws li cov khoom xau los ntawm kev puas tsuaj ntawm cov kav dej, muab kev lees paub rau kev tsim khoom ntsuab hauv cov lag luam.
Txij li kev thauj cov tailings hauv cov mines mus rau kev thauj cov kua qaub thiab alkali hauv kev lag luam tshuaj lom neeg, los ntawm kev kho cov tshauv ya hauv kev lag luam fais fab mus rau kev thauj cov slurry hauv kev lag luam metallurgical, cov kav dej silicon carbide hnav-resistant maj mam hloov cov kav dej ib txwm nrog lawv cov kev ua tau zoo "hard core" thiab dhau los ua qhov nyiam tshiab hauv kev thauj mus los hauv kev lag luam. Nws tsis tsuas yog qhia txog kev nce qib ntawm cov khoom siv thev naus laus zis, tab sis kuj tseem qhia txog lub tswv yim kev txhim kho ntawm cov tuam txhab ua raws li kev ua haujlwm zoo, txuag hluav taws xob, thiab tus phooj ywg ib puag ncig.
Yav tom ntej, nrog rau kev txhim kho thev naus laus zis tas mus li, cov kav dej silicon carbide hnav-resistant yuav ua lub luag haujlwm hauv ntau qhov chaw, muab kev txhawb nqa zoo dua rau kev ua haujlwm zoo ntawm kev tsim khoom lag luam thiab ua lub zog tseem ceeb hauv kev txhawb nqa kev txhim kho kev lag luam zoo.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-03-2025