Refractory Silica Bricks for Coke Ovens are designed for superior performance in the demanding conditions of high-temperature industrial furnaces. Made from high-purity quartzite and mineral additives, these bricks offer high thermal conductivity, excellent dimensional stability, and robust performance at temperatures up to 1500ºC. Ideal for coke ovens, they improve heat transfer, enhance energy efficiency, and extend the lifespan of furnace linings.
Their unique properties—such as high resistance to thermal shock, excellent refractoriness under load, and high softening temperature—make them perfect for use in environments where rapid temperature fluctuations and extreme thermal stresses are common. With consistent quality and customizable sizes, Xintai’s silica bricks are engineered to meet the needs of industrial applications demanding high performance.
Technical Specifications
| Property | Typical Value |
|---|---|
| SiO₂ Content | ≥ 95% |
| Apparent Porosity | ≤ 22% |
| Bulk Density | 2.50–2.60 g/cm³ |
| Cold Crushing Strength | ≥ 450–600 kg/cm² |
| Refractoriness Under Load (RUL) | ≥ 1650°C (at 0.2 MPa) |
| Permanent Linear Change (PLC) | ±0.2% after 1450°C × 2h |
| Thermal Conductivity | ≥ 1.8 W/m·K (at 1000°C) |
Key Features
- High Thermal Conductivity: Efficient heat transfer to reduce energy consumption and enhance operational performance.
- Excellent Refractoriness Under Load (RUL): Able to withstand high temperatures up to 1650°C, ensuring long-lasting furnace performance.
- Dimensional Stability: Low permanent linear change after high-temperature exposure.
- Low Porosity: Provides enhanced thermal shock resistance and structural integrity.
- High Phospho-Quartz Content: Dense crystal structure to maintain strength and durability in high-temperature applications.
- Balanced Performance: Outstanding combination of physical and chemical properties for optimal furnace performance.
Typical Applications
Refractory Silica Bricks for Coke Ovens are used in various high-temperature industrial environments, including:
- Coke Ovens and Regenerators: To line the combustion chambers, carbonization chambers, furnace bottoms, and roofs.
- Hot Blast Stoves: Efficient heat transfer in steel production processes.
- Glass Tank Regenerators: Reliable for consistent heat retention in glass production.
- Silica Checker Bricks: Used in thermal storage systems to maintain high temperatures.
- Industrial Kilns: Ideal for any kiln requiring excellent heat transfer and energy efficiency.
These bricks are particularly suitable for environments where high thermal resistance, low thermal expansion, and energy efficiency are essential.
Production Details
Xintai’s Refractory Silica Bricks for Coke Ovens are manufactured using high-precision shaping and controlled sintering techniques. We use only high-purity quartzite to produce dense, stable bricks that resist thermal shock and maintain their structural integrity at elevated temperatures. Our advanced firing techniques reduce porosity and enhance crystalline phase formation, resulting in superior mechanical and thermal properties. Each batch undergoes stringent quality control to ensure reliability and consistency in performance.
Packing and Shipping Details
Refractory Silica Bricks are packed securely in fumigation-free wooden pallets with shrink wrapping and cushioning to prevent damage during transit. Custom packaging solutions are available upon request for bulk orders or export. Products are shipped via container or bulk cargo, depending on customer requirements.
Frequently Asked Questions (FAQ)
Q1: What is the typical lifespan of silica bricks in coke ovens?
Silica bricks can last anywhere from 20 to 45 years, depending on operating conditions, temperature, and maintenance.
Q2: Can I get a custom size for my project?
Yes, custom sizes are available upon request to meet your specific requirements.
Q3.How do I ensure the quality of silica bricks?
We provide quality certificates for all of our products, including compliance with ISO standards to ensure high performance.
Q4: Can I get a sample for testing?
Yes, samples are available for evaluation before making a bulk purchase.
Q5: How does the thermal conductivity of silica bricks benefit coke oven operations?
Refractory silica bricks for coke oven have high thermal conductivity, which enhances heat transfer, reduces energy consumption, and speeds up the coking process, improving overall furnace efficiency.
