Silica Checker Brick Description
Silica Checker Brick is a type of high-quality refractory brick made primarily from silica (SiO₂), specifically designed for use in regenerative furnaces, such as coke ovens, hot blast stoves, glass furnaces, and other industrial furnaces that require efficient heat storage and recovery. These bricks are characterized by their unique checker-like structure, which maximizes the surface area for heat exchange, making them ideal for improving the thermal efficiency of furnaces.
Silica Checker Brick Specifications
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Item
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Specification
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SiO2 % ≥
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95
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Al2O3 % ≤
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1.0
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Fe2O3 % ≤
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1.3
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Cold crushing strength Mpa ≥
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35
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Apparent porosity % ≤
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24
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Creep rate 0.2MPa 1500℃ 50h % ≤
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0.8
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Apparent density g/cm3 ≤
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2.32
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Thermal expansion 1000℃ % ≤
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1.25
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Residual quartz % ≤
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1.0
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Refractoriness under load T0.6 ℃ ≥
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1650
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Silica Checker Brick Applications
- Hot Blast Stoves: As a regenerator to preheat the air blast for blast furnaces in steelmaking. The checker brick alternates between heating and cooling phases to store and release heat efficiently.
- Coke Ovens: In the regenerative chambers of coke ovens, where they help recover heat from exhaust gases to improve energy efficiency.
- Glass Furnaces: For heat recovery in the regenerator sections, improving the efficiency of glass melting operations.
- Other Industrial Furnaces: Used in other furnaces where heat recovery is essential, such as in non-ferrous metal production and ceramic kilns.
Silica Checker Brick Packaging
Our Silica Checker Brick is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
FAQs
Q1: What is Silica Checker Brick?
Silica Checker Brick is a type of lightweight refractory brick primarily made from silica (SiO₂). These bricks are designed to provide excellent thermal insulation in high-temperature environments, such as furnaces, kilns, and ovens.
Q2: What sizes and shapes are available for Silica Checker Bricks?
Silica Checker Bricks are available in various standard sizes and shapes (e.g., rectangular, wedge, arch). Custom sizes and shapes can be manufactured upon request to meet specific application requirements.
Q3: How does Silica Checker Brick compare to other refractory bricks?
Silica Checker Bricks have lower thermal conductivity and better thermal shock resistance compared to many other refractory bricks, making them ideal for applications where both high-temperature performance and insulation are critical. However, they are less resistant to basic (alkaline) slags than some other refractories.
