Insulating Fire Brick with ISO Certificate for Furnace

Insulating Fire Brick with ISO Certificate for Furnace

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 1 m.t.

Supply Capability:: 1000000 m.t./month

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Introduction of insulating firebrick

Insulating brick is sintered mainly with supper-fine bauxite charlotte and propr additive by a method of EPS ignition loss. Refractory high alumina EPS insulating brick for heating furnace is a kind of insulation refractory product, taking bauxite as main raw material and including not less than 48% of AL2O3.

Characteristics of insulating firebrick

1.High porosity

2.Small volume density

3.Good insulation effect

4.High mechanical intensity

5.Small thermal conductivity

6.Long service life

Application of insulating firebrick

1. Building materials for blast furnace

2. Building materials for hot-blast stove

3. Building materials for coke oven

4. Building materials for steel making furnace

5. For construction material in steel industry

6. For ladle

ISO Certificate Insulating Firebrick for Furnace

Physical and chemical indexes of insulating firebrick

Brand	Clay insulating bricks				High Alumina insulating bricks
	NG-0.5	NG-0.6	NG-0.8	NG-1.0	LG-0.6	LG-0.8	LG-1.0
Bulk density g/cm3 ≤	0.5	0.6	0.8	1	0.6	0.8	1
Crushing strength Mpa ≥	1.5	2	2.5	3.4	1.96	2.94	4
The experimental temperature of linear change ≤2%	1250	1300	1350	1350	1350	1400	1450
Thermal conductivity 350±25(W/m.k) ≤	0.18	0.25	0.35	0.5	0.25	0.032	0.45
Refractoriness under load	1160	1250	1280	1300	1300	1350	1380
Al2O3 % ≥	35	40	42	42	50	52	52
Fe2O3 % ≥	2.5	2.5	2	2	1.8	1.6	1.5
Maximun erice temperature	1150	1200	1280	1300	1300	1350	1380

FAQ

Q2: What`s the lead time for my order?

A2: It depends on customers’ requirements and our production schedule. And usually we need 30-60 days for refractory bricks,10-25 days for unshaped refractory materials and 10-20 days for ceramic fiber blankets.

Q3: Can you offer Door-to-Door delivery?

A3: Yes, but only for some countries such us U.S., UAE, Saudi Arabia, Iran, and Russia, etc.

Q: Are insulating fire bricks resistant to fluorine gas?: Yes, insulating fire bricks are generally resistant to fluorine gas due to their refractory properties and ability to withstand high temperatures and chemical corrosion.

Q: Can insulating fire bricks be used in the construction of industrial boilers?: Industrial boilers can utilize insulating fire bricks for their construction. These bricks are specially designed with low thermal conductivity, making them ideal for retaining heat in high-temperature applications. In the case of industrial boilers, insulating fire bricks can be used to line the combustion chamber and other areas that require insulation. The use of insulating fire bricks in industrial boilers offers several advantages. Firstly, their low thermal conductivity helps reduce heat loss, thereby improving the overall energy efficiency of the boiler. This can lead to significant cost savings in the long run. Additionally, these bricks have a high resistance to thermal shock, making them capable of withstanding frequent temperature fluctuations without cracking or breaking. This is particularly important in boiler applications where temperatures can change rapidly. Moreover, insulating fire bricks are lightweight and easy to install, making them a convenient choice for construction projects. They can be shaped and cut to fit the specific requirements of the boiler, allowing for a precise and efficient installation process. In summary, the use of insulating fire bricks in the construction of industrial boilers is a suitable choice due to their excellent thermal insulation properties, resistance to thermal shock, and ease of installation.

Q: Are insulating fire bricks suitable for use in thermal shock applications?: Yes, insulating fire bricks are suitable for use in thermal shock applications. Insulating fire bricks are designed to withstand rapid changes in temperature without cracking or breaking, making them ideal for thermal shock environments where there are frequent and extreme temperature fluctuations.

Q: How do insulating fire bricks compare to ceramic fiber insulation?: Insulating fire bricks and ceramic fiber insulation have their own advantages and differences. Insulating fire bricks offer higher thermal conductivity and are more resistant to mechanical stress, making them suitable for applications where structural strength is required. On the other hand, ceramic fiber insulation provides excellent thermal insulation properties, is lightweight, and has superior resistance to thermal shock. The choice between the two ultimately depends on the specific requirements of the application.

Q: Can insulating fire bricks be used as a lining for incinerators?: Indeed, insulating fire bricks have the capability to serve as a lining in incinerators. Their design is specifically engineered to endure extreme temperatures while offering exceptional thermal insulation. Comprised of lightweight components like ceramic fibers, refractory minerals, and binders, these bricks have the ability to retain heat and hinder heat transfer to the external surface. When it comes to incinerators, where elevated temperatures are generated to effectively incinerate waste materials, insulating fire bricks play a crucial role in sustaining the desired internal temperature of the unit. They can be utilized to cover the walls, floor, and ceiling of the incinerator, effectively confining the heat within the chamber and preventing its escape into the surrounding environment. Additionally, the insulation properties of these bricks contribute to energy efficiency by minimizing heat loss. Consequently, this can lead to reduced fuel consumption and operational expenses. Nevertheless, it is essential to acknowledge that insulating fire bricks might not be suitable for all types of incinerators. Depending on the specific requirements and circumstances of the incinerator, alternative refractory materials like dense fire bricks or castable refractories may be more suitable. It is strongly advised to consult with experts or manufacturers to determine the most appropriate lining material for a particular incinerator.

Q: What is the specific heat capacity of insulating fire bricks?: The specific heat capacity of insulating fire bricks typically ranges from 0.8 to 1.2 J/g°C.

Q: Can insulating fire bricks be used for insulation in cryogenic applications?: Yes, insulating fire bricks can be used for insulation in cryogenic applications. These bricks have excellent thermal properties that make them suitable for maintaining low temperatures and preventing the transfer of heat in cryogenic environments. They are designed to resist extreme cold and can effectively insulate against the loss of thermal energy, making them a reliable choice for cryogenic insulation.

Q: How do insulating fire bricks help reduce emissions from heating equipment?: The role played by insulating fire bricks in reducing emissions from heating equipment is significant. This is because they improve the system's overall energy efficiency. These bricks are specifically designed with low thermal conductivity, which allows them to insulate heat effectively and prevent heat loss. When incorporated into heating equipment like furnaces or boilers, insulating fire bricks help retain heat within the system. This enables the equipment to reach and maintain higher temperatures more efficiently. As a result, fuel consumption is reduced since less energy is needed to achieve the desired heating levels. By decreasing fuel consumption, insulating fire bricks indirectly contribute to emission reduction. Burning less fuel to generate the same amount of heat leads to a corresponding decrease in the release of greenhouse gases and other pollutants into the atmosphere. This contribution is particularly important in the context of fossil fuel-based heating systems, which are major sources of carbon dioxide emissions and air pollution. Additionally, the use of insulating fire bricks can improve combustion efficiency. The higher temperatures attained and sustained within the heating equipment enhance the combustion process, ensuring a more thorough and cleaner burn. This helps minimize the production of harmful by-products like carbon monoxide and nitrogen oxides, which not only harm the environment but also pose health risks to humans. In conclusion, insulating fire bricks play a crucial role in reducing emissions from heating equipment by enhancing energy efficiency, reducing fuel consumption, and promoting cleaner combustion. By enhancing the overall performance of heating systems, these bricks contribute to a more sustainable and environmentally friendly approach to heating.

Q: Are insulating fire bricks resistant to cracking under pressure?: Yes, insulating fire bricks are designed to be highly resistant to cracking under pressure. They are specifically manufactured to withstand high temperatures and thermal shocks while maintaining their structural integrity.

Q: How does the density of an insulating fire brick affect its performance?: The density of an insulating fire brick plays a crucial role in determining its performance. Generally, a higher density brick will offer better thermal insulation and mechanical strength compared to a brick with lower density. The thermal insulation property of an insulating fire brick is directly affected by its density. A brick with higher density will have smaller pores and a more compact structure, resulting in better insulation against heat transfer. This means that the brick will be able to effectively resist the transfer of heat from one side to the other, making it more efficient in maintaining a consistent temperature within the structure it is used in. On the other hand, a brick with lower density will have larger pores and a less compact structure, allowing for more heat transfer and reducing its insulating capabilities. In addition to thermal insulation, the density of an insulating fire brick also impacts its mechanical strength. A higher density brick will generally have greater structural integrity and resistance to mechanical stress. This means that it will be more reliable and durable, capable of withstanding higher temperatures and physical pressures without cracking or breaking. On the contrary, a brick with lower density may be more fragile and prone to damage, limiting its ability to perform in harsh conditions. Therefore, it is important to consider the density of an insulating fire brick when selecting one for a specific application. A balance needs to be struck between achieving optimal thermal insulation and mechanical strength. Factors such as the desired level of insulation, the operating temperature, and the structural requirements of the application should be taken into account to determine the appropriate density of the insulating fire brick for maximum performance.

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