Zhengzhou Zhongkeda Refractory Materials Co., Ltd
Silicon Insulation Brick
Silica insulating bricks are lightweight thermal insulation refractory materials with silicon dioxide (SiO₂) as the main component (≥92%). They are formed through high-temperature sintering or chemical bonding, creating a porous structure that combines low thermal conductivity with high-temperature resistance. These bricks serve as a key material for energy saving and consumption reduction in industrial furnaces.
Key Advantages of Silica Insulating Brick:
📉 Ultra-low thermal conductivity for significant energy savings.
🔥 High-temperature resistance, suitable for extreme environments.
🧪 Excellent acid resistance, extending service life.
⚖️ Lightweight yet strong, reducing structural load.
🌿 Eco-friendly, cost-effective, and safe, with flexible customization options.
Application Scenarios of Silica Insulating Brick:
1.🔥High-Temperature Industrial Kilns
•🫙Glass Industry: Insulation layer for glass melting furnace crowns and breast walls (reduces heat loss by 30%).
•🏺Ceramics Industry: Lining for roller kilns and tunnel kilns (shortens heating time by 20%).
•⚒️Metallurgical Industry: Insulation for coke oven doors and ladle covers (reduces surface temperature to below 80℃).
2.🌱Energy & Environmental Protection Equipment
•⚡Power Plant Boilers: Furnace wall insulation (reduces heat dissipation loss to ≤2%).
•🗑️Waste Incinerators: Insulation for secondary combustion chambers (resistant to acidic flue gas corrosion).
Production Process of Silica insulating bricks:
Technical Specifications of Silica insulating brick:
|
Item |
GGR-1.00 |
GGR-1.10 |
GGR-1.15 |
GGR-1.20 |
|
SiO₂ (%)≥ |
91 |
91 |
91 |
91 |
|
Bulk Density/(g/cm³)≥ |
1.00 | 1.10 | 1.15 | 1.20 |
|
Cold Crushing Strength/(Mpa)≥ |
2.0 | 3.0 | 5.0 | 5.0 |
|
Reheating linear change≤(1550℃，2h) |
/ | / | 0.5 | 0.5 |
|
Reheating linear change≤(1450℃，2h) |
0.5 |
0.5 | / | / |
|
0.1MPa Refractoriness under load start temperature/(℃）≥ |
1400 | 1420 | 1500 | 1520 |
|
Thermal conductivity W/(m•K)Mean temperature 350±10℃ ≤ |
0.55 | 0.60 | 0.65 | 0.70 |
Q:What is the maximum operating temperature?
A:Our standard silica insulating bricks can withstand continuous operating temperatures of up to 1260°C (2300°F). Please contact us for custom options for higher temperature resistance.
Q:Can I request custom sizes or shapes?
A:Absolutely. We provide OEM customization, including special shapes like arch bricks, wedge bricks, tongue-and-groove, and more.
Q:Do you provide technical data sheets and certifications?
A:Yes, we provide SGS test reports, RoHS certificates, and technical data sheets (TDS) for all product lines upon request.
Q:Can I get a free sample before bulk purchase?
A:Yes! We offer free samples for product evaluation and testing. Please contact us to arrange shipping details.
Q:Do you accept bulk wholesale orders internationally?
A:Yes, we specialize in bulk manufacturing and global B2B supply. Our bricks are exported to over 30 countries with secure packaging and fast delivery.
