Silica Brick for Hot Blast Stove
Fireramo sells and exports Silica Bricks for Hot Blast Stoves at ex-factory prices. Please let us know your requirements and you can also get customized Silica Bricks for Hot Air Stoves.
- Origin: China
- Product Name: Fireramo Silica Brick for Hot Blast Stove
- OEM/ODM: Support
- Refractoriness (℃): 1770< Refractoriness< 2000
- Transport Package: Export Pallet
- Production Capacity: 1000ton/Month
Product Details
Silica Brick for Hot Blast Stove/furnace
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Description of Silica Brick for Hot Blast Stove
Silicon bricks for hot blast stove are silicon refractory materials made by taking squamous quartz as the main crystalline phase, adding mineralizing agent and binding agent, and going through the processes of mixing, molding, drying, and sintering. Silicon brick for hot blast furnace is the main refractory material for the high temperature part of hot blast furnace.
As the hot air temperature of the blast furnace continues to increase, the Fireclay brick or high alumina brick often used in the high-temperature parts of the hot stove in the past is gradually replaced by the hot stove with silica bricks and low creep high alumina bricks.
Characteristics of Silicon Bricks for Hot Blast Stoves
Acid resistance
Silica bricks for hot blast stove belong to acidic proof bricks, with strong resistance to acidic slag or acidic solution erosion.
High temperature stability
Under the condition of long term high temperature and load, it has stable volume and low high temperature creep rate, and can be used continuously for one or even two blast furnace service.
Strong thermal shock resistance
Refractory bricks for hot blast furnace still have good thermal shock resistance above 600℃. Adapt to the temperature variability of the hot blast furnace, so that the brick and masonry to maintain integrity.
Strong resistance to chemical erosion
Resistance to chemical erosion is better than clay bricks and general high alumina bricks. The erosion of silica bricks by alkaline substances in gas and soot is limited to the formation of a layer of glass phase on the surface, and no spalling occurs.
Good thermal conductivity
The thermal conductivity of silica bricks is larger than that of clay bricks and high alumina bricks, which is conducive to the storage and release of heat in a shorter period of time.
Application of silicon bricks for hot blast furnace
Silicon bricks for hot blast stove are mainly used in the upper part of the heat storage room of the hot blast stove, the cone part and the pipeline combination.
Silica Brick for Hot Blast Stove Specifications
| silica brick for hot blast stove | Wall Brick/Dome Brick | Checker Brick |
|---|---|---|
| SiO2 (%) | ≥95 | ≥95 |
| Al2O3 (%) | ≤1.0 | ≤1.0 |
| Fe2O3 (%) | ≤1.0 | ≤1.0 |
| Apparent Porosity (%) | ≤22 | ≤24 |
| True Density (g/cm3) | ≤2.33 | ≤2.33 |
| Cold Crushing Strength (Mpa) | ≥40 | ≥35 |
| Refractoriness Under Load (0.2Mpa) (℃) | ≥1650 | ≥1650 |
| Residual Quartz (%) | ≤1.0 | ≤1.0 |
| Creep Rate 0.2Mpa (1550℃*50h) (%) | ≤0.6 | ≤0.6 |
| Permanent Linear Change (1450℃*2h) (%) | ≤0.2 | ≤0.2 |
| Thermal Expansion Coefficient (1000℃) (%) | ≤1.26 | ≤1.26 |
Specializing in refractory materials for over 20 years, we provide professional refractory solutions for the global high temperature industry.
