Xaiv lub chimney zoorefractory cibcov ntaub ntawv yuav tsum muaj kev txiav txim siab zoo ntawm cov hauv qab no tseem ceeb:
1. Qhov kub thiab txias: nkag siab txog qhov kub thiab txias hauv lub qhov cub hluav taws xob thiab qhov ua tau kub siab tshaj plaws. Cov khoom siv hluav taws xob sib txawv muaj cov khoom siv hluav taws xob sib txawv. Piv txwv li, high-alumina bricks yog haum rau qhov kub thiab txias ib puag ncig, thaum cov av nplaum cib yuav haum rau qhov kub thiab txias. Yog hais tias qhov kub ntawm lub chimney feem ntau tshaj 1400 degree, tej zaum koj yuav tau xaiv corundum bricks.
2. Tshuaj yaig: Xav txog cov tshuaj muaj pes tsawg leeg ntawm cov pa roj hauv lub chimney thiab seb puas muaj cov khoom corrosive xws li sulfur dioxide thiab hydrogen chloride. Cov ntaub ntawv uas muaj zog chemical erosion kuj, xws li magnesia-chrome cib thiab silica cib, yog tsim nyog nyob rau hauv qhov chaw no. Piv txwv li, nyob rau hauv ib puag ncig uas muaj sulfur dioxide ntau dua, magnesia-chrome cib tuaj yeem tiv taus tshuaj yaig.
3. Mechanical hnav: Qhov ceev ntawm airflow nyob rau hauv lub chimney thiab cov khoom nqa yuav ua rau hnav nyob rau saum npoo ntawm refractory bricks. Xaiv cov khoom uas muaj zog dua thiab hnav tsis kam, xws li silicon carbide cib, tuaj yeem ua rau lub neej ntev. Zoo li lub chimneys ntawm qee cov nroj tsuag hluav taws xob thermal, vim yog cov cua nrawm nrawm, refractories bricks nrog zoo hnav tsis kam yog feem ntau xaiv.
4. Thermal shock stability: Txij li thaum chimneys yuav muaj kev hloov ceev ntawm kub thaum lub sij hawm ua hauj lwm, lub thermal shock stability ntawm refractory hluav taws cib yog ib qho tseem ceeb heev. Mullite cib, cordierite cib, thiab lwm yam ua tau zoo hauv qhov no. Piv txwv li, nyob rau hauv lub chimney ua hauj lwm intermittently ua hauj lwm, cov cib no nrog zoo thermal shock stability tuaj yeem txo qhov tawg thiab tawg los ntawm qhov kub thiab txias.
5. Load-bearing muaj peev xwm: Lub chimney tus kheej cov qauv thiab ib puag ncig sab nraud yuav ua rau lub siab ntawm refractory hluav taws cib. Nws yog ib qho tsim nyog los xaiv cov ntaub ntawv uas muaj lub zog txaus compressive thiab lub peev xwm thauj khoom los tiv thaiv cov bricks los ntawm deforming thiab collapsing. Rau siab chimneys, lub load-bearing muaj peev xwm ntawm refractories bricks yuav tsum tau tshwj xeeb tshaj yog tseem ceeb.
6. thermal rwb thaiv tsev kev ua tau zoo: zoo thermal rwb thaiv tsev kev ua tau zoo tuaj yeem txo cov cua sov poob, txhim kho kev siv hluav taws xob, thiab txo qhov kub ntawm qhov chaw sab nrauv ntawm lub chimney. Lub teeb yuag refractory cib los yog cov ntaub ntawv refractory uas muaj cov khoom siv insulating yog cov kev xaiv zoo. Yog tias cov kev xav tau txuag hluav taws xob muaj siab, cov hluav taws kub refractory cib nrog cov thermal rwb thaiv tsev zoo tuaj yeem muab qhov tseem ceeb.
7. Tus nqi thiab kev lag luam: Raws li qhov ua tau raws li qhov yuav tsum tau ua, xav txog tus nqi ntawm cov khoom siv refractory thiab kev lag luam ntawm kev siv mus ntev. Txawm li cas los xij, koj tsis tuaj yeem xaiv cov khoom siv nrog kev ua haujlwm tsis txaus vim yog tus nqi pib qis, uas yuav ua rau muaj kev hloov pauv thiab tu thiab ua kom tag nrho cov nqi.
Ua tib zoo tshuaj xyuas cov ntsiab lus saum toj no thiab muab lawv nrog cov kev siv chimney tshwj xeeb thiab cov kev xav tau los xaiv cov khoom siv hluav taws xob zoo tshaj plaws refractory cib.
