Nrog rau kev tsim kho tshiab ntawm cov khoom siv tshiab qhuav-txheej txheem cement mus rau qhov loj, kev txhim kho cov peev txheej ntau lawm thiab cov roj combustion efficiency tau nce qhov kub thiab txias ntawm tag nrho cov teb kiln. Vim tias qhov kub thiab txias, cov khoom siv zoo tib yam alkali-resistant bricks tsis tuaj yeem ua tau raws li cov kev cai ntawm cov ntaub ntawv refractory rau kev ua haujlwm kub. Yog li ntawd, nws tseem ceeb heev kom nrhiav tau tus nqi qis, ua haujlwm siab refractory cib los hloovsilica mullite cib.
01 Daim ntawv thov ntawm silica mullite cib
Tam sim no, cov ntaub ntawv refractory ntawm preheating decomposition cheeb tsam ntawm qhov tshiab-txheej txheem cement rotary kiln yog tsim los ntawm silica-molybdenum cib. Txawm hais tias lawv tuaj yeem ua tau raws li cov kev xav tau ntau lawm, cov ntsiab lus alkali ntawm thaj chaw preheating decomposition ntawm cov cement rotary kiln yog siab, thiab cov ntsiab lus alumina hauv silica-molybdenum cib yog siab, thiab muaj peev xwm tiv taus alkali yaig tsis txaus, thiab alkali tawg yog nquag. tshwm sim, uas cuam tshuam rau lub neej kev pab cuam. Tsis tas li ntawd, silica-molybdenum cib tag nrho siv qib thawj lossis qib tshwj xeeb alumina, thiab ntxiv 10% ~ 25% SiC. Tus nqi tsim khoom yog siab, thiab nws cov thermal conductivity nce cov roj noj ntawm cov cement kilns, ua rau lub zog pov tseg. Yog li ntawd, txawm hais tias los ntawm qhov kev xav ntawm kev txo cov cement clinker zog noj los yog txuag cov khoom siv refractory, nws yog ib qho tsim nyog yuav tsum siv cov cuab yeej hloov pauv los tsim ib hom tshiab ntawm aluminium-silica alkali-resistant cib nrog zoo heev alkali corrosion kuj thiab kub tsis kam siv rau hauv. cement rotary kiln preheating decomposition tsam los hloov silica-mullite cib.
02 Tsawg aluminium mullite cib rau cov cement kilns npaj los ntawm khib nyiab hluav taws xob porcelain
Tsawg-aluminium mullite cib rau cov cement kilns npaj los ntawm cov khib nyiab hluav taws xob porcelain siv qis-aluminium mullite thiab high-pressure khib nyiab hluav taws xob porcelain ua cov ntaub ntawv tseem ceeb, ntxiv quartz xuab zeb hmoov thiab lwm yam khoom siv ntxiv, siv cov kua txiv hmab txiv ntoo pov tseg ua cov ntaub ntawv, thiab npaj cov khoom siv. sib tov los ntawm qhov tsim nyog particle grading. Tom qab kev kub siab molding thiab ziab, low-aluminium mullite cib yog npaj los ntawm kev tua ntawm 1 400 degree . Qhov kev ua tau zoo ntawm cov tsim tshiab low-aluminium mullite cib tau muab piv nrog cov tam sim no zoo tib yam silica-mullite cib, thiab cov nyhuv ntawm cov hluav taws xob hluav taws xob ntau ntxiv rau qhov kev ua tau zoo ntawm cov qauv raug rho tawm haujlwm tau txheeb xyuas. Cov txiaj ntsig tau pom tias cov av qis-aluminium mullite cib tsis muaj thermal conductivity thiab alkali tsis kam, thiab yog qhov tsim nyog rau qhov preheating decomposition cheeb tsam ntawm cement rotary kiln; Nyob rau tib lub sijhawm, cov khoom siv pov tseg high-voltage hluav taws xob porcelain ua cov khoom siv tseem ceeb, uas tseem muaj txiaj ntsig zoo rau kev siv cov peev txheej.
03 Cov khoom lag luam zoo ntawm qis aluminium mullite cib rau cov cement kilns npaj los ntawm khib nyiab hluav taws xob porcelain
1. Tsawg tus nqi raw khoom. Kev lag luam pov tseg hluav taws xob porcelain, raws li cov khoom siv tseem ceeb, tau ntev tau kho raws li kev lag luam pov tseg. Nrog rau txoj kev loj hlob ntawm kev lag luam ceramic, tus naj npawb ntawm cov khib nyiab hluav taws xob porcelain yog nce. Yuav ua li cas tsim nyog tsim thiab siv cov khib nyiab high-voltage hluav taws xob porcelain muaj qhov ua tau zoo.
2. Muab piv nrog cov silica-mullite cib zoo tib yam, tsawg-aluminium alkali-resistant mullite cib muaj qhov ntim tsawg thiab yog 15% sib zog dua li tib tus naj npawb ntawm silica-mullite cib. Lawv tuaj yeem txo qhov hnyav ntawm lub kiln thiab paub txog lub teeb yuag kiln.
3. Tsawg-aluminium alkali-resistant mullite cib muaj cov thermal conductivity tsawg, uas tuaj yeem txo cov cua sov dissipation poob ntawm lub tog raj kheej thiab ua lub luag haujlwm hauv kev txuag hluav taws xob thiab kev noj qab haus huv.
4. Tsawg-aluminium alkali-resistant mullite bricks muaj alkali tsis kam, thiab lawv thermal shock stability thiab load softening kub raws li qhov yuav tsum tau rau kev siv cov cement kiln preheating decomposition cheeb tsam. Yog li ntawd, lawv tuaj yeem hloov silica-mullite cib tag nrho thiab siv rau hauv cov cement kiln preheating decomposition cheeb tsam.
Tsawg aluminium mullite cib ua los ntawm qis-aluminium mullite thiab high-pressure khib nyiab hluav taws xob porcelain raws li cov ntaub ntawv tseem ceeb muaj alkali tsis kam, thermal conductivity tsawg thiab ntim ntom, thiab zoo thermal shock kuj. Lawv tuaj yeem hloov pauv cov silica-mullite cib zoo tib yam thiab siv rau hauv thaj chaw thermal decomposition ntawm cov cement kiln sab saum toj, txo cov load ntawm cement kiln lub cev, paub txog lub teeb yuag ntawm kiln, thiab muaj kev txuag hluav taws xob zoo thiab txo cov teebmeem. Nyob rau tib lub sijhawm, kev siv cov khoom siv hluav taws xob pov tseg txhawb kev siv cov peev txheej thiab ua tiav lub hom phiaj ntawm kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig.
