Ntawm ib sab tumbling Molten hlau hauv cov hluav taws xob hlau, hauv cov khoom siv hluav taws xob, thiab cov khoom siv uas tau ua kom ntsiag to tawm tsam cov kev yaig ntawm ib puag ncig - lawv yogCov khoom siv hluav taws xobCov. Raws li "tus saib xyuas kub kub" ntawm niaj hnub kev vam meej, tsuas yog cuam tshuam nrog kev nyab xeeb ntau lawm, tab sis kev siv hluav taws xob ntau thiab kev siv hluav taws xob thiab kev ua tau zoo.
Dab tsi yog cov khoom siv tsis tau?
Cov khoom lag luam refactory xa cov ntaub ntawv tshwj xeeb uas tuaj yeem tswj hwm lub cev thiab tshuaj lom neeg ruaj khovNyob rau hauv qhov kub kub ib puag ncig saum 1580 degreeThiab tawm tsam melting, softening lossis decomposition. Lawv tsis yog ib qho khoom siv, tab sis ntau cov txheej txheem sib xyaw ua ke los ntawm cov zaub mov muaj hluav taws xob rau cov khoom siv hluav taws xob zoo nkauj, uas ua ke cov pob zeb "ntawm cov nkoj muaj kev pab, cov khoom siv thermal.
Tsib Tus Qauv Tseem Ceeb ntawm Refractory Cov Ntaub Ntawv
1. Kev kub siab ruaj khov
o Maintain structural strength at high temperature (such as corundum bricks with a refractoriness of >1770 degree)
o Tiv thaiv kev kub siab rau kev tawm tsam kom ntseeg tau tias geometric ruaj khov ntawm cov khoom siv
2. Thermal poob siab ruaj khov
o Withstand rapid cooling and heating (such as alumina-silica refractory bricks that can withstand >20 Dej Txias Cycles)
o Tiv thaiv kev sib tw thiab tawg ua los ntawm kev ntxhov siab thermal
3. Tshuaj Corrosion Kuj
o tiv taus slag yaig (xws li Magnesia-chrome cib siv hauv Alkaline Slag ib puag ncig)
o Reseed acid \/ alkali roj corrosion (xws li daim ntawv thov ntawm silicon carbide cib robleification Furnacification Furnacificator)
4. Neeg kho tshuab coj tsis kam
o Region High-speed airflow lossis particle scouring (xws li ladle castetable nrog molten steel cuam tshuam)
5. Cov tshuaj tiv thaiv thermal conductivity
o Siab thermal conductivity cov ntaub ntawv (xws li graphite cib siv siv hauv kev sib pauv cua sov)
o Tsawg thermal colority cov ntaub ntawv (xws li Ceramic Fiber Modules los txo cov cua sov dissipation hauv cov tshuab hluav taws xob)
Ob lub tshuab kawm loj rau cov khoom lag luam refactory
Zoo li cov refractories
Mas cov neeg ua ntej cib, suav rau ntau dua 60% ntawm kev ua lag luam thoob ntiaj teb:
Kev faib tawm los ntawm cov khoom xyaw
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Ntaus |
Cov neeg sawv cev |
Tus yam ntxwv |
Daim Ntawv Thov Kev Thov |
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Silicon-Aluminium Series |
High alumina cib (al₂o₃ ntau dua los yog sib npaug rau 52%) 1 |
Kev tsis zoo rau cov acidic slag thiab thermal poob siab |
Moj tej tawg ua rauv hnov, kub tawg qhov cub |
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Kev Ua Si Lom Zem Alkaline |
Magnesia chrome cib, dolomite cib magns |
Alkaline Slag Kuj, muaj zog kub |
Converter slag kab, xis mas Kiln |
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Carbon-Muaj Series |
Alumina Carbon Cib, Magnesia Carbon Cib |
Corrosion resistant, tsis-ntub hlau |
Ladle, Fais Rauv |
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Tshwj Xeeb Series |
Zirconia Corundum Cib, Silicon Carbide Cib |
Ultra-siab lub zog, tiv thaiv kev nkag mus |
Iav Kiln, Tshuaj Hluav Taws Xob |
Molding process: high pressure press (70-150MPa), isostatic pressing (density>95%), Kev co Molding (Qhov Loj Tshwj Xeeb Ntawm Cov Khoom)
Monolithics
"Hloov cov cuab yeej" rau kev tsim kho hauv chaw, nrawm tshaj plaws zuj zus los dav:
• Casabab
o Aluminate Maas Bonded Castables: Siv rau Boiler Lauj (Lifespan> 10 Xyoo)
o Muaj Maas Qas Li \/ Ultra-Low Castables: Sib Koom Tes Casting ntawm Ladle (Ladle Hnub nyoog> 260 zaug)
o Kev ntws ua rau tus kheej
• Daim yas
o Av nplaum sib khi Plag Plag Plastics: Sintering tshuab thim rov qab rauv taws (liftespan 3-6 xyoo)
• phom sib xyaw
ou ntub dej \/ qhuav: hloov chaw tiv thaiv, kub lub zog rauv dome kho
Core Appratios: Yuav ua li cas Refractory cov khoom siv kev lag luam kub siab
Metallurgical kev lag luam: "Battle sib ntaus sib tua" ntawm cov kub siab thiab corrosion
•Hlau smelting
o moj tej tawg ua kom sov: silicon carbide castable dej-txias phab ntsa, al₂o₃-sic-c hlau channel cov khoom
o Converter: Magnesium Carbon Cib Slag Kab, Slag Splashing Rauv Txau Txau
o Ladle: Aluminum magnesium spinel castable (lifespan>200 lub sij hawm)
• Tsis muaj metallurgy
o Electrolytic Cell: Anti-permeability casable (anti-sodium corrosion)
o Flash Rauv: chrome corundum cib kom tiv taus tooj liab matte corrosion
Cov ntaub ntawv tsim tsev thiab tshuaj lom neeg: cov nyom ntawm corrosion thiab hnav
• cement caurn
o Tua hluav taws Thaj Chaw: Magnesia-alumina spinnel cib cib-hloov magnesia-chrome cib)
o preheater: alkali-resistant cametable (tiv taus k₂o \/ naulo nkag)
• Iav Kiln
o Melting pas: zirconium corundum cib cib (azs -41) kom tiv taus yaig los ntawm molten iav
o Tin da dej: tsawg-hlau Castable (kom ntseeg tau tias lub tiaj tiaj ntawm iav)
• Petrochemical cog
o Crowing Rauv: High-purity corundum casable (tiv taus hydrocarbon yaig)
o Gasifier: Si₃n₄ ua ke Silicon Carbide cib cib (resistant mus tshauv yaig)