Tom qab magnesium oxide ua kom tsis ua haujlwm, kev ntsuas kho xws li rov ua dua, txo qis, lossis siv cov peev txheej tuaj yeem siv nyob ntawm qhov ua tsis tau zoo. Ua ntej txheej txheem optimization raws li kev kho; yog tias qhov no ua tsis tiav, hloov daim ntawv thov mus rau qhov tsis yog - qhov tseem ceeb.
1. Kev Tsis Txaus Siab Me: Rov ua dua tom qab kev ua kom zoo dua
Cov xwm txheej siv tau: Cov ntsiab lus ntawm kev ua haujlwm 50% -60%, noo noo me ntsis siab dua 1.5%, xim grey me ntsis tab sis tsis muaj agglomeration hnyav;
Txoj kev kho: Re- tsoo cov khoom thiab hla nws los ntawm 80-mesh sieve kom ntseeg tau tias qhov loj me me;
Kho cov txheej txheem calcination: Kub rau 700℃thiab tuav rau 4 xuab moos kom paub meej tias qhov decomposition tiav; nruj me ntsis kaw cov txheej txheem cua txias kom tiv thaiv kev nqus noo noo.
Lub Hom Phiaj: Rov ua haujlwm kom siab dua lossis sib npaug li 60%, noo noo tsawg dua lossis sib npaug li 1.5%.
Muaj feem xyuam rau kev decomposition tsis tiav vim qhov kub thiab txias los yog lub sij hawm tuav tsis txaus.
2. Kev Ua Tsis Taus Nruab Nrab: Kev txo qis rau Tsis yog- Cov txheej txheem tseem ceeb
Cov xwm txheej siv tau: Kev ua<50%, hard caking, poor flowability, but no sintering or impurity contamination;
Cov lus qhia kho mob: Tsis siv rau hauv siab - daim ntawv thov kev ua haujlwm (xws li, hluav taws xob, tshuaj, magnesium oxide boards); Nws tuaj yeem siv los ua cov av txias hauv kev ua liaj ua teb kom neutralize acidic av; Nws tuaj yeem siv los ua tus phooj ywg zoo ib puag ncig desulfurizing tus neeg saib xyuas lossis cov dej khib nyiab pH kho kom siv nws cov alkalinity seem.
Tus nqi qis, tsim nyog rau kev lag luam auxiliary daim ntawv thov nrog cov tshuaj tiv thaiv kev ua haujlwm tsawg.
3. Kev Ua Phem Loj: Cov Kev Pabcuam Ncaj Ncees
Cov xwm txheej siv tau: Zuag qhia tag nrho hardening zoo li pob zeb, xim dub, muaj impurities, lossis tau sintered;
Txoj Kev Kho Mob: Sib tsoo thiab sib xyaw nrog cov khoom siv qis- qib tsev (xws li, cov khoom siv rov qab, thaiv cov khoom siv); Siv raws li kev qhia kev sim cov khoom siv rau kev ua yeeb yam hauv tsev kawm ntawv theem nrab chemistry; Hu rau cov neeg muab khoom siv raw rau kev rov ua dua kom tsis txhob muaj kuab paug ib puag ncig.
Kev siv yuam kev hauv siab - cov ntaub ntawv ua tau zoo tuaj yeem ua rau cov khoom tawg thiab kev ua haujlwm poob.
4. Ua ntej-Cov lus pom zoo rau kev ntsuam xyuas
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Cov khoom kuaj |
Kev ntsuam xyuas Feasibility Remedial |
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Active Magnesium Oxide Cov ntsiab lus |
Ntau dua lossis sib npaug li 50%: tuaj yeem sim nrog recalcination;<50%: Downgrading recommended |
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Lub cev lub xeev |
Loos los yog me ntsis agglomerated: tuaj yeem kho; Hnyav compacted: Nyuaj rov qab |
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Cov ntsiab lus noo noo |
≤2.5%: Can be remediated; >3%: Kev nqus dej hnyav, muaj kev pheej hmoo siab |
Nws raug nquahu kom coj tus qauv me me rau kev sim calcination pov thawj ua ntej, thiab tom qab ntawd ua haujlwm nrog cov txheej txheem tom qab lees paub qhov tshwm sim.
