Insulating Fire Brick - Refractory Mulite Insulating Fire Brick GJM25
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
You Might Also Like
General Information
CMAX insulating firebricks are classified under temperature between 1300℃ to 1700℃, manufactured from high purity alumina clay.
1. Lower content of iron, alkaline and impurities, good high temperature properties.
2. Homogeneous structure, light weight, energy saving because lower heat storage in the furnace during cooling cycles.
3. High strength, good thermal shock resistance under high temperature.
4. Precise sizes due to grinding and shaping after sintering, which meets the requirement of construction.
5. Max service temp: Up to 1730C (3160F)
Feature
Light weight and low thermal conductivity
Low heat storage
Low iron and impurities
High thermal shock resistance
Application
CMAX insulating firebricks can be used as a hot face lining directly exposed to the heat or as a backup insulation layer in iron and steel mills, non-ferrous foundries, petrochemical, ceramic, glass.
ITEM | GJM30 | GJM28 | GJM26 | GJM23 |
Classification Temperature, ℉/℃ | 3000/1650 | 2800/1540 | 2600/1430 | 2300/1260 |
Bulk Density，g/cm³ | ≤1.0 | ≤0.9 | ≤0.8 | ≥0.5 |
Reheating Linear Change, % | ≤0.9 (1550℃,12 h) | ≤0.8 (1510℃,12 h) | ≤0.7 (1410℃,12 h) | ≤0.5 (1230℃,12 h) |
Al2O3 Content, % | ≥75 | ≥65 | ≥55 | ≥45 |
Fe2O3 Content, % | ≤0.5 | ≤0.6 | ≤0.7 | ≤1.0 |
Thermal Conductivity: | ||||
800℃, w/m.k | ≤0.39 | ≤0.37 | ≤0.35 | ≤0.18 |
1000℃, w/m.k | ≤0.43 | ≤0.41 | ≤0.39 | ≤0.20 |
1200℃, w/m.k | ≤0.48 | ≤0.46 | ≤0.43 | --- |
- Q: Can insulating fire bricks be recycled or reused?
- Yes, insulating fire bricks can be recycled or reused. They can be crushed down and used as fillers in various construction materials or as a base material for roads. Additionally, they can be reclaimed and reused in various industrial processes that require heat insulation.
- Q: What is mullite insulation brick?
- Mullite brick, according to different density can be divided into: lightweight mullite brick and heavy mullite brick;
- Q: Can insulating fire bricks be used for insulation in cement kilns?
- Insulation in cement kilns can be achieved by using insulating fire bricks. These bricks are made from lightweight materials like ceramic fibers or expanded clay, which possess high insulation properties. Their low thermal conductivity allows them to effectively reduce heat transfer and retain heat within the kiln. Cement kilns operate at extremely high temperatures, often surpassing 1,400 degrees Celsius (2,500 degrees Fahrenheit). Incorporating insulating fire bricks in the kiln helps prevent heat loss, enhances energy efficiency, and reduces fuel consumption. By creating a barrier between the hot gases inside the kiln and the surrounding environment, these bricks minimize heat escape. Additionally, insulating fire bricks exhibit remarkable resistance to thermal shocks, enabling them to withstand the severe temperature fluctuations that occur in cement kilns. This durability ensures long-lasting insulation, minimizing the need for frequent maintenance and replacement. Nevertheless, it is crucial to note that the specific type and composition of insulating fire bricks required for cement kiln insulation may vary depending on factors such as the kiln's design and operating conditions. Consulting with experts or manufacturers specializing in refractory materials is advisable to ensure the correct selection and installation of insulating fire bricks for cement kiln insulation.
- Q: Do insulating fire bricks require special installation techniques?
- Special installation techniques are not necessarily required for insulating fire bricks, although there are certain factors to consider during the installation process. These bricks are designed to withstand high temperatures and provide thermal insulation, making them perfect for lining fireplaces, kilns, furnaces, and other applications that involve high temperatures. Although the installation process may differ depending on the specific application, there are general guidelines to follow. First and foremost, it is crucial to ensure that the surface where the bricks will be installed is clean and free from debris. This will assist in proper adhesion of the bricks and guarantee a secure installation. It is advisable to use a high-temperature refractory mortar or adhesive to bond the bricks together and to the surface. This mortar should be specifically formulated for high-temperature applications to ensure durability and heat resistance. It is essential to adhere to the manufacturer's instructions for mixing and applying the mortar. To maximize the insulating properties of the bricks, it is vital to achieve proper alignment and tight joints during the installation process. This can be accomplished by using a level and a rubber mallet to carefully position the bricks, ensuring they are evenly and tightly placed. Furthermore, it is important to account for the expansion and contraction of the bricks caused by the high temperatures they will be exposed to. This can be accomplished by leaving small gaps between the bricks and using expansion joints or flexible materials in areas where movement is anticipated. Finally, it is recommended to consult the manufacturer's guidelines and recommendations for specific installation techniques and considerations. Different types of insulating fire bricks may have slightly different requirements, so it is important to follow the instructions provided by the manufacturer. In conclusion, while insulating fire bricks do not demand complex installation techniques, it is crucial to pay attention to details and adhere to the recommended guidelines to ensure a successful and long-lasting installation.
- Q: Can insulating fire bricks be used in refractory linings for blast furnaces?
- Yes, insulating fire bricks can be used in refractory linings for blast furnaces. Insulating fire bricks are designed to have low thermal conductivity, which means they can effectively reduce heat loss from the furnace. This property is particularly important in blast furnaces, where maintaining high temperatures is essential for efficient operation. Insulating fire bricks are made from lightweight refractory materials such as alumina or silica, which have high insulating properties. These bricks not only provide thermal insulation but also have good resistance to thermal shock, making them suitable for the extreme conditions found in blast furnaces. In addition to insulation, insulating fire bricks also offer other advantages for blast furnace linings. They are lightweight and easy to install, which reduces the labor and time required for construction. Furthermore, their low thermal conductivity can help to minimize the formation of hot spots and uneven temperature distribution within the furnace, which can lead to premature wear and failure of the refractory lining. However, it's important to note that insulating fire bricks alone may not be sufficient for all parts of the blast furnace lining. Certain areas, such as the hearth and tuyere zones, may require high-density refractory bricks that can withstand the intense heat and mechanical stress. In these cases, a combination of insulating fire bricks and other refractory materials may be used to achieve the desired performance and longevity. Overall, insulating fire bricks can be a valuable component in refractory linings for blast furnaces, helping to improve energy efficiency, reduce heat loss, and prolong the lifespan of the lining.
- Q: Are insulating fire bricks resistant to weathering or aging?
- Yes, insulating fire bricks are generally resistant to weathering and aging. These bricks are designed to withstand high temperatures and harsh conditions, making them durable and long-lasting. They are often used in applications where exposure to extreme weather, such as rain, snow, and sunlight, is common. However, it is important to note that the specific composition and quality of the bricks can vary, so it is advisable to consult the manufacturer or supplier for detailed information regarding their weathering and aging resistance properties.
- Q: Can insulating fire bricks be used in chimney construction?
- Indeed, insulating fire bricks have the capability to be utilized in the construction of chimneys. These bricks are specifically designed to possess a low thermal conductivity, which ultimately leads to their effectiveness in minimizing heat transfer. As a result, they prove themselves suitable for chimney construction as they aid in maintaining cooler chimney walls and preventing excessive heat from being transmitted to the surrounding structures. Moreover, apart from their lightweight nature, insulating fire bricks possess commendable insulation properties, thereby making their handling and installation in chimney construction a much simpler task. However, it is imperative to acknowledge that in order to comply with safety regulations and ensure proper chimney construction, it is crucial to utilize insulating fire bricks in conjunction with other fire-resistant materials.
- Q: Are insulating fire bricks suitable for insulation in cryogenic applications?
- Insulating fire bricks are indeed appropriate for insulation in cryogenic applications. These bricks are crafted from lightweight refractory materials that possess exceptional thermal insulation qualities. With their low thermal conductivity, high melting points, and ability to withstand extremely frigid temperatures, they are perfectly suited for cryogenic applications. Cryogenic applications entail the handling and storage of materials at exceedingly low temperatures, typically below -150 degrees Celsius (-238 degrees Fahrenheit). Insulating fire bricks are specifically designed to provide efficient insulation in such extreme conditions, effectively preventing heat transfer and maintaining the desired low temperature. Moreover, insulating fire bricks exhibit chemical stability and possess excellent resistance to thermal shock. This means they can endure rapid temperature fluctuations without cracking or deteriorating, which is particularly crucial in cryogenic applications where such variations are commonplace. In addition to their exceptional thermal insulation qualities, insulating fire bricks are lightweight and easy to handle, making them convenient for installation in cryogenic systems. All in all, insulating fire bricks are a suitable choice for insulation in cryogenic applications due to their thermal insulation properties, resistance to high temperatures, chemical stability, and ability to withstand thermal shock.
- Q: Are insulating fire bricks porous?
- Yes, insulating fire bricks are porous. Porosity is a characteristic of insulating fire bricks that allows them to have low thermal conductivity. These bricks are made from ceramic materials and contain a high percentage of tiny air pockets or voids, which trap and slow down the transfer of heat. This porosity also makes the bricks lightweight and resistant to thermal shock. The ability of the insulating fire bricks to retain heat and provide effective insulation is directly linked to their porous structure.
- Q: Can insulating fire bricks be used for chimney lining?
- Indeed, chimney lining can indeed benefit from the utilization of insulating fire bricks. These bricks are meticulously crafted to endure soaring temperatures and excel in heat retention. Their remarkable capacity for minimizing thermal conductivity effectively curbs heat dissipation, thereby enhancing the chimney's efficiency. Moreover, their impressive resistance to cracking and spalling renders them a resilient choice for lining. Nevertheless, it remains crucial to ascertain that the chosen insulating fire bricks align with the particular chimney type and adhere to the applicable local building codes and regulations.
Send your message to us
Insulating Fire Brick - Refractory Mulite Insulating Fire Brick GJM25
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
Similar products
Hot products
Hot Searches
Related keywords
