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  • 07
  • Oct

Low creep high alumina brick for hot blast stove

Low creep high alumina brick for hot blast stove

Low creep le litene tse phahameng tsa alumina are high-grade refractory materials made of alumina, fused corundum, and fused mullite as the main raw materials.

Likaroloana

1. Refractorure

The refractoriness of low-creep and high-alumina bricks is higher than that of clay bricks and semi-silica bricks, reaching 1750~1790℃, which is a high-grade refractory material.

2. Mojaro o kokobetsang mocheso

Hobane lihlahisoa tse nang le alumina e phahameng li na le Al2O3 e phahameng, litšila tse fokolang, le ‘mele ea khalase e fokolang, mocheso o nolofatsang mojaro o phahame ho feta oa litene tsa letsopa. Leha ho le joalo, hobane likristale tsa mullite ha li thehe sebopeho sa marang-rang, mocheso o kokobetsang mojaro o ntse o sa phahama joalo ka oa litene tsa silika.

3. Khanyetso ea slag

Low creep and high alumina bricks contain more Al2O3, which is close to neutral refractory materials, and can resist the erosion of acidic slag and alkaline slag. Because it contains SiO2, the ability to resist alkaline slag is weaker than that of acidic slag.

tshebediso

Haholo-holo e sebelisetsoa lera la sebopi sa ho phatloha, sebopi se chesang se chesang, litulo tsa sebopi sa motlakase, sebopi sa ho phatloha, sebopi sa ho busetsa le li-kilns tsa rotary.

projeke Tene e nyane ea alumina e tlase
EA-155-DRL EA-150-DRL EA-145-DRL EA-140-DRL EA-135-DRL EA-130-DRL EA-127-DRL
Al2O3,% ≥ 75 75 65 65 65 60 50
Apparent porosity，% ≤ 20 21 22 22 22 22 23
Boima ba bongata, g / cm3 2.65-2.85 2.65-2.85 2.50-2.70 2.40-2.60 2.35-2.30 2.30-2.50 2.30-2.50
Matla a hatellang mochesong oa kamore, Mpa ≥ 60 60 60 55 55 55 50
Sekhahla moepa% （0.2Mpa, 50h) ≤ 1550 ° C
0.8		 1500 ° C
0.8		 1450 ° C
0.8		 1400 ° C
0.8		 1350 ° C
0.8		 1300 ° C
0.8		 1270 ° C
0.8
Sekhahla sa phetoho ea mohala o khutlang% 1550 ℃, 2h 0.1－-0.2 0.1－-0.2 0.1－-0.2        
1450 ℃, 2h       0.1－-0.2 0.1－-0.4 0.1－-0.4 0.1－-0.4