• Insulating Fire Brick - Mullite Jm 31 Refractory Brick System 1
  • Insulating Fire Brick - Mullite Jm 31 Refractory Brick System 2
  • Insulating Fire Brick - Mullite Jm 31 Refractory Brick System 3
  • Insulating Fire Brick - Mullite Jm 31 Refractory Brick System 4
Insulating Fire Brick - Mullite Jm 31 Refractory Brick

Insulating Fire Brick - Mullite Jm 31 Refractory 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 31

Refractory Mullite Insulating Refractory Brick JM 31

Common problem solution

1. What products do you have?

We have all kinds of refractory bricks, refractory casting materials, mortar, cement, ceramic fiber products, etc..

Or you can browse our products to choose what you need.

2. How to control product quality?

With strict quality control system throughout the material selection and production process, we have the quality of refractory materials and ceramic fiber products to meet customer requirements.

From the selection of raw materials, the quality of our control to start. The quality of the raw materials required for each batch of products in the use of the front line test. In the production process, through the quality control of workers, and then to each piece of classification, and through quality supervision and inspection.

3. Could you give me a brief introduction to the application of your product?

My Company is mainly engaged in steel, cement, glass, ceramics, petrochemical, electric power and other industries.

4. If I need you, what kind of information do you need?

In order to select the right products, we will provide us with information, such as the United States, technical data, order quantity, product applications, etc..

If you have any questions, please contact us.


Q: Are insulating fire bricks resistant to nitrogen oxides?
Insulating fire bricks are known for their excellent thermal insulation properties and are commonly used in high-temperature applications such as furnaces, kilns, and industrial boilers. While they are highly resistant to heat and can withstand extreme temperatures, their resistance to nitrogen oxides (NOx) may vary depending on the specific composition and manufacturing process of the bricks. Nitrogen oxides are a group of harmful gases that are produced during combustion processes, particularly at high temperatures. These gases can have detrimental effects on human health and the environment. Although insulating fire bricks have a high melting point and can withstand intense heat, they may not provide sufficient resistance to nitrogen oxides on their own. To enhance the resistance of insulating fire bricks to nitrogen oxides, additional measures and coatings may be required. These could include the use of specialized refractory coatings or the incorporation of specific additives during the manufacturing process to create a more chemically resistant brick. It is important to note that the resistance of insulating fire bricks to nitrogen oxides may also depend on the specific application and operating conditions. Different types of nitrogen oxides, such as nitrogen dioxide (NO2) or nitric oxide (NO), may have different effects on the bricks. Therefore, it is recommended to consult the manufacturer or a specialist in refractory materials to determine the suitability of insulating fire bricks in a specific environment where the presence of nitrogen oxides is a concern.
Q: Can insulating fire bricks be used for insulation in heat treatment furnaces?
Yes, insulating fire bricks can be used for insulation in heat treatment furnaces. Insulating fire bricks are designed to handle high temperatures and provide excellent thermal insulation, making them suitable for use in heat treatment furnaces where maintaining a consistent and controlled temperature is crucial.
Q: Do insulating fire bricks have any impact on indoor air quality?
Insulating fire bricks, also known as refractory bricks, are primarily used in high-temperature applications such as fireplaces, kilns, and furnaces. These bricks are designed to withstand extreme heat and provide insulation, preventing the transfer of heat to surrounding areas. In terms of indoor air quality, insulating fire bricks do not have a direct impact. Since insulating fire bricks are made from materials such as clay, alumina, and silica, they are generally inert and do not release any harmful substances into the air when exposed to normal temperatures. However, it is important to note that during the manufacturing process, certain chemicals or additives may be used, which could potentially have an impact on air quality if not properly regulated or controlled. Additionally, the installation and maintenance of insulating fire bricks can indirectly affect indoor air quality. For example, if the bricks are not installed correctly or become damaged over time, they may develop cracks or gaps that could allow the escape of harmful gases or particulate matter. In such cases, it is crucial to promptly repair or replace damaged bricks to ensure the integrity of the insulation and prevent any negative impact on indoor air quality. Furthermore, the use of insulating fire bricks in fireplaces or wood-burning stoves can indirectly influence indoor air quality. When these devices are operated, they can release smoke, particulate matter, and potentially harmful gases into the air. It is essential to ensure proper ventilation and use high-quality flue systems to minimize the impact on indoor air quality when using such appliances. In summary, insulating fire bricks themselves do not have a direct impact on indoor air quality. However, it is important to consider factors such as the manufacturing process, installation, and maintenance to ensure that these bricks do not contribute to any degradation of the air we breathe.
Q: Can insulating fire bricks be used in the construction of pottery wheels?
Yes, insulating fire bricks can be used in the construction of pottery wheels. Insulating fire bricks are designed to withstand high temperatures and provide excellent insulation, making them suitable for various applications in the pottery industry. When used in the construction of pottery wheels, these bricks can help to retain heat, allowing for more consistent and controlled firing of pottery. Additionally, their insulating properties can help to minimize heat loss and increase energy efficiency during the pottery wheel's operation. Overall, insulating fire bricks are a popular choice for pottery wheel construction due to their ability to withstand high temperatures and provide insulation, making them a suitable material for this purpose.
Q: Can insulating fire bricks be used for insulation in oil refineries?
Yes, insulating fire bricks can be used for insulation in oil refineries. These bricks have excellent thermal insulation properties and can withstand high temperatures, making them suitable for insulation applications in oil refineries where heat is generated. They can help reduce heat loss and increase energy efficiency in the refining process.
Q: What is composite sintering insulation bricks?
Taking the Yangtze River, lake and silt as the main raw materials, the performance indexes of roasting are in line with the technical specifications and technical requirements of the building blocks, referred to as insulating bricks.
Q: Are insulating fire bricks suitable for use in the construction of drying ovens?
Yes, insulating fire bricks are suitable for use in the construction of drying ovens. They have excellent thermal insulation properties, which helps to retain heat and prevent heat loss during the drying process. Additionally, insulating fire bricks can withstand high temperatures and have good resistance to thermal shocks, making them a reliable choice for drying oven construction.
Q: Are insulating fire bricks suitable for use in lime kilns?
Yes, insulating fire bricks are suitable for use in lime kilns. They have high insulating properties that help to maintain high temperatures inside the kiln while minimizing heat loss. This is important for efficient lime production. Additionally, insulating fire bricks are resistant to the corrosive nature of lime, making them a durable and reliable choice for lime kilns.
Q: Can insulating fire bricks be used in glass furnaces?
Glass furnaces can indeed utilize insulating fire bricks. These bricks are specifically engineered with low thermal conductivity, rendering them ideal for high-temperature environments such as glass furnaces. The implementation of these bricks aids in the reduction of heat loss from the furnace, consequently enhancing energy efficiency and decreasing operational expenses. Moreover, they offer superior insulation and aid in maintaining consistent temperatures within the furnace, a vital factor in glass production. Furthermore, insulating fire bricks exhibit excellent resistance to thermal shock and can endure the extreme temperatures and rapid temperature fluctuations that are common in glass furnaces. Overall, integrating insulating fire bricks into glass furnaces can result in enhanced furnace performance, heightened productivity, and energy conservation.
Q: Can insulating fire bricks be used in electric arc furnaces?
Yes, insulating fire bricks can be used in electric arc furnaces. Insulating fire bricks are made of lightweight materials with high insulating properties, which make them ideal for applications where heat insulation is required. Electric arc furnaces generate high temperatures and require effective insulation to contain the heat within the furnace chamber. Insulating fire bricks can withstand the intense heat produced in electric arc furnaces, preventing heat loss and conserving energy. Additionally, their insulating properties help maintain a stable temperature inside the furnace, ensuring efficient melting and refining of metals or other materials. Therefore, insulating fire bricks are a suitable choice for use in electric arc furnaces.

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