Lub ntsiab raw khoom rau silica nplua hmoov muaj xws li silica xuab zeb, slag khoom, ntoo shavings, zaub mov tais thiab rauv cov ntaub ntawv, thiab lwm yam. Thaum lub sij hawm firing txheej txheem, particle loj, purity thiab feem ntawm raw cov ntaub ntawv yuav cuam tshuam cov kev ua tau zoo thiab qhov hnyav ntawm silica hmoov zoo. Lub hauv qab nto yog npaj nrog raw cov ntaub ntawv xws li hmoov silicon hmoov.
1. Silica xuab zeb, tseem hu ua quartz xuab zeb, yog ib qho khoom siv raw rau smelting SiC. Dej xuab zeb thiab dej hiav txwv xuab zeb yog siv los smelt dub SiC, thaum vein quartz yog siv los smelt ntsuab SiC. Qhov loj me me ntawm silica xuab zeb muaj qhov cuam tshuam tseem ceeb ntawm cov khoom siv hluav taws xob thiab kev siv hluav taws xob ntawm SiC, yog li cov xuab zeb silica uas tsim nyog thiab zoo particle loj yuav tsum raug xaiv.
2. Cov pa roj carbon feem ntau muab cov pa roj carbon uas yuav tsum tau ua kom muaj silicon carbide micropowder. Petroleum coke, asphalt coke thiab low -ash anthracite feem ntau yog siv los ua raw khoom.
3. Cov hmoov ntoo (cov ntoo tawv tawv) yog siv los ua kom cov cua nkag hauv lub cub tawg thiab nthuav cov tshuaj tiv thaiv.
4. Cov ntsiab lus ntawm ntsev yog 97% mus rau 99%, thiab particle loj yog tsawg dua 2 hli. Thaum ntxiv nws rau smelting ntsuab SiC, nws tuaj yeem ua kom tshem tawm cov impurities thiab ua raws li cov purifier thiab catalyst. Nws tsis yog siv thaum smelting dub SiC.
Cov cuab yeej siv thiab kev tsim khoom:
Lub tshuab hluav taws xob kuj yog cov cuab yeej tseem ceeb rau smelting silicon carbide hmoov. Cov txheej txheem smelting muaj xws li cov khoom siv tshiab thiab cov txheej txheem smelting. Txoj kev siv cov khoom tshiab yog ncaj qha thauj cov ntaub ntawv raw khoom mus rau hauv cov tshuaj tiv thaiv thaj tsam ntawm lub qhov cub ua kom smelt silicon carbide hmoov. Cov txheej txheem smelting yog txhawm rau thauj cov khoom siv raw rau hauv thaj chaw tshuaj tiv thaiv ntawm lub qhov cub tom ntej rau kev smelting.
Cov txheej txheem khiav ntawm silicon carbide hmoov ntau lawm yog muab faib ua: batching → them → smelting → txias thiab stoking → mixing thiab desalting → unloading thiab grading → granulation.
Silicon carbide granulation txheej txheem
Feem ntau, abrasives nrog qhov loj me ntawm F4 txog F220 yog hu ua abrasives, thiab abrasives nrog qhov loj me ntawm F230 txog F1200 hu ua micro hmoov. Abrasives yog ua tiav los ntawm kev tshuaj ntsuam thiab muab qhab nia, thiab cov hmoov micro yog ua tiav los ntawm kev ntsuas hydraulic.
Cov txheej txheem granulation muaj xws li: crystal block crushing → tshuaj ntsuam → dej ntxuav → kua qaub ntxuav → alkali ntxuav → sib nqus sib nqus → shaping → calcination (kom qhuav) → zoo tshuaj ntsuam → tshuaj xyuas thiab ntim.
Cov txheej txheem tseem ceeb ntawm cov hmoov micro muaj xws li: siv lead ua block crushing → pob milling → tshuaj ntsuam → dej ntxuav → lub cev qhuav dej → ziab → hydraulic grading → sib nqus sib nqus → tshuaj ntsuam xyuas → tshuaj xyuas → ntim.
