Njerwa yamoto ya aluminium silica ndi mtundu wa alumina silica refractory njerwa, alumina silicate refractory njerwa ili ndi mawonekedwe a high refractoriness, good refractoriness resistant and high mphamvu. Njerwa za aluminium silicate refractory zimaphatikizapo mitundu yambiri ya njerwa zamoto monga njerwa za silika, njerwa za fireclay, njerwa zapamwamba za alumina, njerwa za mullite ndi njerwa za corundum. njerwa yamoto ya alumina silica imatha kugwiritsidwa ntchito pamitundu yonse yazida zotentha.
Gulu la Alumina Silica Moto Njerwa
Malinga ndi dongosolo la kuchuluka kwa zinthu kuchokera ku SiO2 kupita ku Al2O3, njerwa ya aluminium silicon yamoto imagawidwa m'magulu otsatirawa.
Njerwa ya silika: zomwe zili mu SiO2 ndizoposa 93%,
Njerwa zadongo: zomwe zili mu Al2O3 ndi 30% -48%,
Njerwa yayikulu ya alumina: zomwe zili mu Al2O3 ndizoposa 48%,
Njerwa ya Mullite: zomwe zili mu Al2O3 ndi zazikulu kuposa kapena zofanana ndi 72%, ndipo zomwe zili mu SiO2 ndizokulirapo kuposa kapena zofanana ndi 28%,
Njerwa ya Corundum: zomwe zili mu Al2O3 ndizoposa 90%.
Kugwiritsa ntchito njerwa yamoto ya Alumina Silica
Njerwa za silika zimagwiritsidwa ntchito pomanga uvuni wa coke, uvuni wa galasi, ng'anjo ya ceramic, ng'anjo ya carbon calcinations ndipo siyoyenera kugwiritsidwa ntchito popangira zida zotenthetsera ndi kusinthasintha kwa kutentha pansi pa 600 ℃.
Njerwa zadongo zimagwiritsidwa ntchito nthawi zonse mu ng'anjo yoyaka moto, chotenthetsera chowotcha, ng'anjo yowotcha, boiler yamagetsi, ng'anjo ya laimu, ng'anjo yozungulira, ng'anjo ya ceramic ndi calcining uvuni.
Njerwa zapamwamba za alumina zimagwiritsidwa ntchito kwambiri popanga zitsulo, mafakitale osagwiritsa ntchito zitsulo ndi mafakitale ena.
Njerwa ya Mullite imagwiritsidwa ntchito mumitundu yonse yamafakitale yotentha yamoto yokhala ndi zingwe zomangira zopangira zitsulo, mafakitale a petrochemical, mafakitale omangira, mafakitale a ceramic, ndi mafakitale amakina.
Njerwa ya Corundum imatha kugwiritsidwa ntchito mung'anjo yophulika, chitofu chowotcha, ng'anjo yamagalasi ndi zina.
Mawonekedwe a Njerwa Yamoto ya Alumina Silica
- High refractoriness,
- Kukana kwabwino kwa kutentha kwa kutentha,
- Kukana kwamphamvu kukokoloka kwa asidi,
- Kutentha kwakukulu,
- Coefficient yowonjezereka ya kutentha,
- Mkulu matenthedwe madutsidwe.
Zofotokozera
| Kanthu | Mtengo wa RSAS60 | RSAS70 | Mtengo wa RS75 | RSAS80 |
| AL2O3(%) | ≥60 | ≥70 | ≥75 | ≥80 |
| SIO2(%) | 32 | 22 | 20 | ≥18 |
| Fe2O3(%) | ≤1.7 | ≤1.8 | ≤1.8 | ≤1.8 |
| Refractoriness ° C | 1790 | > 1800 | > 1825 | ≥1850 |
| Kuchulukirachulukira, g/cm3 | 2.4 | 2.45-2.5 | 2.55-2.6 | 2.65-2.7 |
| Kufewetsa kutentha pansi pa katundu | ≥1470 | ≥1520 | ≥1530 | ≥1550 |
| Zowoneka bwino,% | 22 | <22 | <21 | 20 |
| Cold Crushing strength Mpa | ≥45 | ≥50 | ≥54 | ≥60 |
Wopanga Njerwa Zamoto wa Alumina Silica
Wopanga RS refractory monga m'modzi mwa otsogola opanga njerwa zowotchera ng'anjo ndi apadera pakudula ndi kuumba njerwa zokhotakhota malinga ndi zomwe makasitomala amafuna, zomwe zimatha kukupatsirani njerwa zamoto za alumina silika.
