• Insulating Fire Brick - Mullite JM 36 Refractory Insulating Brick System 1
  • Insulating Fire Brick - Mullite JM 36 Refractory Insulating Brick System 2
  • Insulating Fire Brick - Mullite JM 36 Refractory Insulating Brick System 3
Insulating Fire Brick - Mullite JM 36 Refractory Insulating Brick

Insulating Fire Brick - Mullite JM 36 Refractory Insulating Brick

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
20 m.t.
Supply Capability:
20 m.t./month

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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 of Insulating brick

Metallurgical Industry: blast furnace, hot blast furnace, heating furnace, etc..

Petrochemical Industry: ethylene cracking furnace, hydrogen furnace, the main furnace, heating furnace, etc..

Ceramic industry: roller kiln, kiln, etc..

Glass industry: glass furnace regenerator, etc.

Carbon industry: carbon furnace, etc..

Aluminum electrolysis industry: aluminum reduction cell, etc.

Other industries: tunnel kiln, shuttle kiln, etc.

 

Advantages of heat insulation brick

Low thermal conductivity: many air holes will bring good thermal insulation effect, energy saving.

High crushing strength: high crushing strength, volume stability.

Low heat storage: small heat storage, absorb more heat, energy-saving effect is obvious.

 

Technical Data

ITEM

GJM30

GJM28

GJM26

GJM23

Classification       Temperature, /          

3000/1650

2800/1540

2600/1430

2300/1260

Bulk       Densityg/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

---

Insulating brick

Refractory Mullite Insulating Refractory Brick JM 36

 


Q: Can insulating fire bricks be used in chimney construction?
Yes, insulating fire bricks can be used in chimney construction. These bricks have high heat resistance and low thermal conductivity, making them suitable for lining chimneys and other high-temperature applications. They help to insulate the chimney and prevent excessive heat transfer, reducing the risk of structural damage and improving energy efficiency.
Q: Can insulating fire bricks be used in kiln car construction?
Yes, insulating fire bricks can be used in kiln car construction. These bricks possess excellent thermal insulation properties, making them suitable for creating an energy-efficient and temperature-stable environment inside the kiln. Additionally, their lightweight nature simplifies the construction process and allows for easy handling of kiln cars.
Q: Do insulating fire bricks require any special firebrick mortar for installation?
Indeed, the installation of insulating fire bricks necessitates the utilization of a specialized firebrick mortar. Regular mortar is unsuitable due to its inability to furnish the essential thermal insulation characteristics or endure the elevated temperatures for which these bricks are intended. Insulating firebrick mortar is purposefully engineered to withstand extreme temperatures and effectively adhere to insulating fire bricks. Typically, this mortar is concocted from an amalgamation of refractory materials, including high-alumina cement, silica sand, and fire clay. Employing the appropriate firebrick mortar is imperative to guarantee a robust and long-lasting installation of insulating fire bricks.
Q: What types of insulating fire bricks are available?
There are several types of insulating fire bricks available, including lightweight insulating fire bricks (IFBs), high alumina insulating fire bricks, and mullite insulating fire bricks.
Q: Can insulating fire bricks be used in the construction of hearth furnaces?
Indeed, hearth furnaces can absolutely incorporate insulating fire bricks. These remarkable bricks are specifically engineered to possess a low thermal conductivity, rendering them exceptionally suitable for scenarios necessitating heat insulation. By utilizing insulating fire bricks in the construction of hearth furnaces, where elevated temperatures prevail, the retention of heat within the furnace is facilitated, thereby enhancing energy efficiency. Furthermore, their implementation minimizes heat transfer, thereby offering thermal protection to nearby structures. Moreover, owing to their lightweight nature and ease of handling, insulating fire bricks are remarkably convenient for construction purposes. All in all, incorporating insulating fire bricks into the construction of hearth furnaces elevates their performance and contributes to a more efficient and effective heating process.
Q: Are insulating fire bricks suitable for use in steel mills?
Insulating fire bricks prove to be suitable for deployment within steel mills. These bricks are crafted from lightweight materials possessing excellent insulation capabilities, enabling them to endure elevated temperatures and offer formidable insulation. Within the realm of steel mills, where the steelmaking process generates exceedingly high temperatures, insulating fire bricks find utilization in the lining of furnaces, kilns, and other high-temperature applications. These bricks serve to curtail heat loss, enhance energy efficiency, and safeguard the steel mill equipment against excessive heat. In addition, insulating fire bricks exhibit commendable thermal shock resistance, a crucial attribute within steel mills characterized by swift temperature fluctuations. All in all, the deployment of insulating fire bricks in steel mills presents a dependable and efficacious solution for preserving high-temperature environments and optimizing the steelmaking process.
Q: Can insulating fire bricks be used in the construction of autoclaves?
Insulating fire bricks are indeed applicable for the construction of autoclaves. Autoclaves necessitate materials capable of enduring high temperatures and pressures, and insulating fire bricks are specifically engineered to exhibit exceptional thermal resistance and insulation characteristics. These bricks consist of refractory materials such as alumina, silica, and other additives that enable them to withstand extreme temperatures and thermal shocks. Furthermore, they possess a lightweight composition and low thermal conductivity, thereby reducing heat loss and enhancing energy efficiency within autoclaves. Moreover, insulating fire bricks are endowed with a commendable load-bearing capacity, rendering them suitable for the structural elements of autoclaves. In summary, the utilization of insulating fire bricks during the construction of autoclaves serves to guarantee the safety and effectiveness of the equipment.
Q: Are insulating fire bricks suitable for insulation in chemical reactors?
Due to their exceptional thermal properties and resistance to high temperatures, insulating fire bricks are commonly employed for insulation in chemical reactors. These bricks, which are manufactured from lightweight refractory materials like alumina, silica, and other minerals, effectively impede heat transfer and provide insulation. Furthermore, they possess low thermal conductivity and high heat capacity, enabling them to minimize heat loss and maintain consistent temperatures within the reactor. Chemical reactors often operate at elevated temperatures and may contain corrosive or reactive substances. Insulating fire bricks can withstand these harsh conditions and safeguard the reactor against external heat sources. They are chemically inert and corrosion-resistant, making them suitable for use with various chemicals and reactants. Additionally, insulating fire bricks exhibit a low thermal expansion coefficient, allowing them to endure thermal cycling without cracking or distorting. This characteristic is crucial in chemical reactors where temperature fluctuations are frequent and can potentially harm the equipment. In conclusion, insulating fire bricks are a popular choice for insulation in chemical reactors due to their thermal insulation properties, resistance to chemicals, and ability to withstand high temperatures and thermal cycling. Their usage aids in enhancing the efficiency and safety of chemical processes by maintaining optimal operating conditions within the reactor.
Q: Are insulating fire bricks resistant to carbon monoxide?
Yes, insulating fire bricks are resistant to carbon monoxide. These bricks are specifically designed to withstand high temperatures and are commonly used in applications where exposure to intense heat and chemicals, such as carbon monoxide, is expected. The insulating properties of these bricks make them highly resistant to heat transfer, allowing them to maintain their structural integrity in the presence of carbon monoxide and other combustion gases. This resistance to carbon monoxide makes insulating fire bricks an ideal choice for applications such as furnaces, kilns, and other high-temperature environments where the risk of carbon monoxide exposure is present.
Q: Are insulating fire bricks suitable for use in ceramic fiber modules?
No, insulating fire bricks are not suitable for use in ceramic fiber modules. Insulating fire bricks are made from a different material than ceramic fiber modules and have different properties. Insulating fire bricks are typically made from dense refractory materials, such as clay or alumina, and are used for their high thermal insulation properties. On the other hand, ceramic fiber modules are made from lightweight ceramic fibers and are designed for high-temperature insulation and heat containment. They have a high resistance to thermal shock and are able to withstand rapid temperature changes. Using insulating fire bricks in ceramic fiber modules would not provide the same level of insulation and heat containment as using ceramic fiber modules. It could lead to poor performance and reduced efficiency in high-temperature applications. Therefore, it is important to use the appropriate materials for specific applications to ensure optimal performance and safety.

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