Puas yog ib qho mullite rwb thaiv tsev cib?

JM series ntawm mullite rwb thaiv tsev cib muaj JM26, JM28, JM30, JM32 raws li kev siv kub. Tus nqi lag luam ntawm txhua daim yog ob peb yuan ib yuan. Tus nqi yuav hloov pauv raws li cov ntsiab lus ntawm cov ntsuas sib txawv thiab qhov xav tau. Hais txog mullite Hais txog cov teeb meem cuam tshuam ntawm ntau npaum li cas cov rwb thaiv tsev cib, cov nqi tshwj xeeb yuav tsum tau sib koom ua ke txiav txim siab tom qab kev sab laj nrog cov chaw tsim khoom refractory.

Mullite rwb thaiv tsev cib yog lub siab alumina refractory khoom nrog mullite (3Al2O3·2SiO2) ua lub ntsiab siv lead ua theem. Feem ntau, cov ntsiab lus alumina nyob nruab nrab ntawm 65% thiab 75%. Ntxiv rau mullite, cov ntxhia muaj pes tsawg leeg muaj me me ntawm iav theem thiab cristobalite nrog cov ntsiab lus alumina qis; cov ntsiab lus alumina siab dua kuj muaj me me ntawm corundum. Mullite rwb thaiv tsev cib tuaj yeem siv ncaj qha rau hauv ob sab phlu ntawm qhov kub kub, thiab tau siv dav hauv shuttle kilns, cov menyuam kilns, iav thiab petrochemical kilns.

1. Khoom yam ntxwv ntawm mullite rwb thaiv tsev cib:

1. Tsawg thermal conductivity thiab zoo thermal rwb thaiv tsev nyhuv;

2. Tsawg impurity cov ntsiab lus muaj tsawg heev hlau thawv alkali hlau thiab lwm yam oxide cov ntsiab lus, yog li ntawd, siab refractoriness; high aluminium cov ntsiab lus ua rau nws muaj kev ua haujlwm zoo hauv qhov chaw txo qis;

3. Mullite rwb thaiv tsev cib muaj thermal melting tsawg. Vim lub thermal conductivity tsawg, lub mullite series ntawm lub teeb yuag rwb thaiv tsev bricks sau me ntsis tshav kub zog, thiab lub zog txuag cov nyhuv yog pom tseeb nyob rau hauv lub intermittent lag luam;

4. Pom qhov loj me, ua kom cov masonry ceev, txo cov av nkos refractory, ua kom lub zog thiab ruaj khov ntawm cov masonry, yog li ncua lub neej ntawm lub hauv ob sab phlu;

5. Mullite rwb thaiv tsev bricks muaj siab kub compressive zog;

6. Mullite rwb thaiv tsev cib tuaj yeem ua tiav rau hauv cov duab tshwj xeeb kom txo tau cov cib thiab cov pob qij txha.

2. Kev faib tawm ntawm mullite rwb thaiv tsev cib:

Raws li nws cov txheej txheem ntau lawm, muaj ob hom mullite sib sib zog nqus rwb thaiv tsev cib: sintered mullite cib thiab fused mullite cib:

1. Sintered mullite cib yog ua los ntawm high-alumina bauxite clinker raws li cov khoom siv tseem ceeb, ntxiv me me ntawm cov av nplaum los yog cov bauxite raw li cov khoom sib khi, thiab tsim thiab tua.

2. Fused mullite cib yog ua los ntawm high alumina, muaj alumina thiab refractory av nplaum ua raw khoom, thiab charcoal los yog coke nplua particles yog ntxiv raws li txo tus neeg sawv cev. Tom qab molding, lawv yog tsim los ntawm kev txo hluav taws xob melting.

Kev ua tau zoo thiab kev siv ntawm mullite rwb thaiv tsev cib: siab refractoriness, uas tuaj yeem ncav cuag 1790 ℃. Qhov pib kub ntawm load softening yog 1600 ~ 1700 ℃. Compressive zog ntawm chav tsev kub yog 70 ~ 260MPa. Zoo thermal shock tsis kam. Muaj ob hom sintered mullite cib thiab fused mullite cib. Sintered mullite cib yog ua los ntawm high-alumina bauxite clinker raws li cov khoom siv tseem ceeb, ntxiv me me ntawm av nplaum los yog raw bauxite ua ib phau ntawv, thiab tsim thiab tua. Fused mullite cib siv cov alumina siab, muaj alumina thiab cov av nplaum refractory li raw cov ntaub ntawv, ntxiv charcoal los yog coke nplua particles li txo cov neeg ua hauj lwm, thiab yog tsim los ntawm txo fusion txoj kev tom qab molding. Lub crystallization ntawm fused mullite loj dua li ntawm sintered mullite, thiab nws cov thermal shock kuj zoo dua li cov khoom sintered. Lawv qhov kub thiab txias ua haujlwm feem ntau yog nyob ntawm cov ntsiab lus ntawm alumina thiab qhov sib xws ntawm mullite theem thiab iav faib. Feem ntau yog siv rau kub moj tej tawg qhov cub sab saum toj, moj tej tawg rauv lub cev thiab hauv qab, regenerator ntawm iav melting rauv, ceramic sintering kiln, tuag kaum rauv hauv ob sab phlu ntawm roj av cracking system, thiab lwm yam.