Qhov no passable peb yuav tham txog ob qhov teeb meem kawg txog magnesia calcium carbon bricks (refractory hluav taws cib). Qhov teeb meem no yog hais txog Waterproofing dawb CaO thiab Carbonization ntawm molten hlau.
3. Waterproofing dawb CaO
Txawm hais tias CaO, raws li cov khoom siv alkaline, muaj peev xwm ua kom huv si molten steel, zoo heev slag tsis kam, thermal stability, thiab lwm yam, lub ntsiab tsis zoo ntawm CaO yog nws absorbs dej hauv huab cua thiab hydrates. Nws cov dej ntws mus raws li cov tshuaj tiv thaiv kab mob hauv qab no hauv Magnesite Bricks Factory.
CaO + H2O → Ca(OH) 2 plus (16 × 4.18KJ)
CaO hydration tseem yog ib qho teeb meem thoob ntiaj teb lees paub, uas ntau tus kws tshawb fawb tau tshawb fawb ntau, thiab kuj tau txais ntau txoj hauv kev ntawm CaO dej tawm. Ntawm lawv, cov txheej txheem suav nrog npog cov khoom siv calcium uas muaj nyob hauv Magnesite Bricks Factory los ntawm kev xav ntawm kev siv tshuab, xws li phosphoric acid kho, nto dipping wax, thiab lwm yam.; los ntawm qhov kev xav ntawm sintering, CaO nplej loj hlob tuaj rau hauv cov nplej uas ruaj khov; Los ntawm qhov kev xav ntawm cov khoom sib xyaw, kev qhia txog Oxides xws li ZO2 thiab CaO daim ntawv sib txuas nrog cov dej kub npau npau zoo dua.
Txawm li cas los xij, hauv resin-bonded magnesium-calcium-carbon refractories hauv Magnesite Bricks Factory, vim tias cov resin decomposes hnyav ua ntej 510 degree, CaO tuaj yeem hydrated ua ntej qhov kub thiab txias.
4. Carbonization ntawm molten hlau
Nrog rau qhov nce hauv qhov kev thov rau cov hlau ntshiab, cov pa roj carbon tsawg thiab cov pa roj carbon tsawg, vim muaj cov ntsiab lus carbon siab (10 feem pua -20 feem pua) ntawm cov pa roj carbon monoxide refractories hauv Magnesite Bricks Factory, qhov tshwm sim ntawm ntxiv carbon rau molten steel thaum siv kuj nce. , uas tau maj mam dhau los ua ib qho teeb meem uas yuav tsum tau xav txog, yog li cov tsoos carbon-muaj refractories tau nyuaj rau siv nyob rau hauv huv steel smelting tej yam kev mob vim lawv cov ntsiab lus carbon. Thiab los ntawm qhov kev xav ntawm kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig, kev nce hauv kev siv hluav taws xob thiab cov khoom pov tseg ntawm cov khoom siv graphite tshwm sim los ntawm cov thermal conductivity ntawm high carbon cov ntsiab lus refractory cov ntaub ntawv kuj txhawb nqa carbon-muaj refractories nyob rau hauv Magnesite Bricks Factory los ua tsawg-carbon thiab tsis-carbonized.
Vim tias magnesia-calcium-carbon bricks kuj muaj qee cov pa roj carbon ntau, zoo ib yam li magnesia-calcium-carbon cib, magnesia-calcium-carbon cib hauv Magnesite Bricks Factory kuj muaj peev xwm ua kom cov pa roj carbon ntau hauv cov hlau molten, yog li tswj cov ntsiab lus carbon. kuj yog ib txoj hauj lwm tseem ceeb heev. Feem ntau ntawm cov ntsiab lus carbon yuav tsum tau tswj ntawm li 2 feem pua -6 feem pua. Qhov no yog vim hais tias thawj qhov kev txiav txim siab yog ua kom cov carburization ntawm molten steel, nrog rau cov decarburization ntawm magnesia-calcium-carbon cib nws tus kheej, uas yuav txo tau cov kev pab cuam lub neej, thiab cov graphite ntau ntxiv, cov khoom siv magnesium-calcium ntau dua. nyob rau hauv Magnesite Bricks Factory yog. Lub zog compressive thiab bulk ntom yog feem ntau qis dua, thiab lub zog ntawm cov khoom tsis muaj magnesium-calcium feem ntau siab dua li cov khoom uas muaj magnesium-calcium.
