Xov Xwm

Taw qhia

Hauv kev lag luam kub kub - los ntawm steelmaking mus rau iav ntau lawm - cov ntaub ntawv refractory yog cov pob txha ntawm kev nyab xeeb thiab ua haujlwm tau zoo. Ntawm cov no,mullite cibsawv tawm rau lawv qhov tshwj xeeb thermal stability, corrosion kuj, thiab mechanical zog. Nkag siab txog lawv cov kev faib tawm thiab cov ntawv thov yog qhov tseem ceeb rau cov lag luam nrhiav kev txhim kho cov cuab yeej siv lub neej thiab txo cov nqi ua haujlwm. Kab lus no rhuav tshem cov hom tseem ceeb ntawm mullite cib thiab lawv cov kev siv hauv ntiaj teb tiag tiag, pab koj txiav txim siab paub txog koj cov kev xav tau kev lag luam.

Kev faib tawm ntawm Mullite Bricks

Mullite bricks yog categorized raws li cov txheej txheem tsim thiab ntxiv cov khoom, txhua tus haum rau cov kev xav tau tshwj xeeb.

1. Sintered Mullite Cib

Ua los ntawm kev sib xyaw ua haujlwm siab-purity alumina thiab silica, shaping qhov sib tov, thiab sintering nws ntawm qhov kub siab tshaj 1600 ° C, sintered mullite cib khav theeb cov qauv ntom ntom thiab tsis tshua muaj porosity (feem ntau hauv qab 15%). Cov yam ntxwv no ua rau lawv zoo heev hnav tsis kam thiab thermal poob siab-zoo tagnrho rau ib puag ncig nrog qhov kub thiab txias hloov pauv. Cov kev siv feem ntau suav nrog cov ntaub ntawv rau cov khoom siv hluav taws xob, cov khoom siv hluav taws xob tawg, thiab cov chav boiler combustion chamber.

2. Fused-cam khwb cia Mullite Bricks

Ua los ntawm melting raw cov ntaub ntawv (alumina, silica) nyob rau hauv ib tug hluav taws xob arc rauv (tshaj 2000 ° C) thiab casting cov molten sib tov rau hauv pwm, fused-cam khwb cia mullite bricks muaj ultra-low impurity theem thiab siab crystalline purity. Lawv cov kev tiv thaiv zoo tshaj rau cov tshuaj yaig (xws li, los ntawm cov iav molten los yog slags) ua rau lawv xaiv rau cov iav cub tawg regenerators, ntab iav tin da dej, thiab lwm yam khoom siv los cuam tshuam rau molten media.

3. Lub teeb yuag Mullite cib

Tsim los ntawm kev ntxiv cov pore-forming agents (xws li sawdust, graphite) thaum lub sij hawm tsim khoom, lub teeb yuag mullite cib muaj qhov porosity ntawm 40-60% thiab qis dua qhov ntom dua li sintered lossis fused-cast hom. Lawv qhov txiaj ntsig tseem ceeb yog cov thermal conductivity tsawg (0.4–1.2 W / (m·K)), uas txo cov cua sov. Lawv tau dav siv los ua cov txheej rwb thaiv tsev hauv cov kiln, qhov cub, thiab cov khoom siv kho cua sov, qhov hnyav thiab lub zog ua haujlwm yog qhov tseem ceeb.

4. Zircon Mullite Cib

Los ntawm kev sib xyaw zircon (ZrSiO₄) rau hauv cov khoom siv raw khoom sib xyaw, zircon mullite cib tau txais kev ua haujlwm siab kub-lawv tuaj yeem tiv taus kub txog 1750 ° C thiab tiv taus yaig los ntawm cov kua qaub slags. Qhov no ua rau lawv haum rau qhov chaw hnyav xws li cov hlau tsis muaj hlau smelting furnaces (xws li, aluminium txo cov hlwb) thiab cov cement rotary kiln burning aav.

Kev siv ntawm Mullite Bricks

Mullite bricks 'versatility ua rau lawv indispensable nyob rau hauv ntau lub high-temperature industries.

1. steel kev lag luam

Cov hlau tsim muaj qhov kub thiab txias (txog 1800 ° C) thiab corrosive slags. Sintered mullite bricks kab kub moj tej tawg qhov cub, qhov twg lawv thermal shock tsis kam tiv thaiv tawg los ntawm ceev cua sov / txias. Fused-cast variants tiv thaiv ladles thiab tundishes, txo cov slag yaig thiab txuas cov cuab yeej siv lub neej los ntawm 20-30% piv rau cov tsoos refractories.

2. Kev lag luam cement

Cement rotary kilns ua haujlwm ntawm 1450-1600 ° C, nrog alkaline slags ua rau muaj kev pheej hmoo yaig loj. Zircon mullite cib kab ntawm qhov cub qhov chaw kub hnyiab, tiv thaiv alkali tawm tsam thiab tswj kev ncaj ncees. Lub teeb yuag mullite cib kuj ua raws li cov txheej txheem rwb thaiv tsev, txiav lub zog siv los ntawm 10-15%.

3. Kev lag luam iav

Molten iav (1500-1600 ° C) yog corrosive heev, ua fused-cam khwb cia mullite cib tseem ceeb rau iav rauv regenerators thiab tank linings. Lawv tiv thaiv cov iav tsis huv thiab txuas rau lub sijhawm ua kom sov rau 5-8 xyoo, nce li 3-5 xyoos nrog rau lwm cov ntaub ntawv.

4. Lwm yam kev lag luam

Nyob rau hauv non-ferrous hlau smelting (aluminium, tooj liab), zircon mullite cib tiv thaiv molten hlau thiab slag yaig. Hauv petrochemicals, sintered mullite bricks kab tawg rauv vim lawv thermal stability. Hauv ceramics, lub teeb yuag mullite cib insulate kilns, txo qis zog siv

Xaus

Mullite bricks 'ntau hom - sintered, fused-cam khwb cia, hnav, thiab zircon - ua tau raws li cov kev xav tau tshwj xeeb ntawm kev lag luam kub. Los ntawm boosting steel furnace efficiency mus ntev iav rauv lub neej, lawv muab tangible txiaj ntsim: cov khoom siv ntev dua, txo nqi zog, thiab txo downtime. Raws li kev lag luam nrhiav kev tsim khoom ntau dua thiab kev ruaj ntseg, mullite cib yuav nyob twj ywm ib qho kev daws teeb meem. Xaiv hom zoo rau koj daim ntawv thov, thiab qhib lawv lub peev xwm tag nrho.