Insulating fire brick for sale is a lightweight refractory product developed by Kerui Company according to market needs. Therefore it has high compressive strength, high temperature performance and good thermal shock stability. It can be used directly as the lining of industrial kilns.
Insulating fire brick is made from refractory material. Such as expanded clay, shale or other lightweight aggregates and a binder such as alumina or silica. What’s more, we chose these materials for their low thermal conductivity. So it allows the bricks to effectively insulate against heat transfer.
Insulating fire brick is specialized refractory bricks designed to provide thermal insulation in high-temperature environments. It offers excellent heat resistance and low thermal conductivity. So, we make it ideal for applications where heat preservation and energy efficiency are essential.
| Name | High Alumina Insulation Brick | Fire Clay Insulation Brick | Mullite Insulation Brick | Alumina Bubble Brick | Silica Insulation Brick |
|---|---|---|---|---|---|
| Main Content | ≥48% Al2O3 | 30%-46% Al2O3 | 40%-77% Al2O3 | 90%-99% Al2O3 | ≥91% SiO2 |
| Bulk Density | 0.5-1.2g/cm³ | 0.5-1.5g/cm³ | 0.5-1.35g/cm³ | 1.3-1.9g/cm³ | 1.0-1.2g/cm³ |
| Thermal Conductivity Coefficient | 0.2-0.55 W/(m·K) | 0.23-0.65 W/(m·K) | 0.18-0.56 W/(m·K) | 0.9-1.2 W/(m·K) | 0.55-0.7 W/(m·K) |
| Cold Crushing Strength | 1.0-4.5 MPa | 0.8-6.0 MPa | 0.9-3.5 MPa | 6-18 MPa | 2-5 MPa |
Fire clay insulation bricks are an insulation material, the main raw material is clay. It has low thermal conductivity and good thermal insulation properties. Clay insulation bricks are suitable for thermal insulation needs in medium and low temperature environments. For example, civil buildings, office buildings and industrial furnaces. Firebrick insulation is relatively low-cost to manufacture.
Mullite insulation brick is made from a mixture of mullite and ceramic powder. Therefore, it has excellent thermal insulation properties, low thermal conductivity and high compressive strength. The insulation layer of high-temperature equipment and industrial furnaces widely uses mullite insulation brick. Examples include the steel, aluminum, petrochemical and glass industries.
High alumina insulation brick is an insulation material, the main component is high aluminum material. It has excellent fire resistance and low thermal conductivity. So it provides effective thermal insulation protection in high temperature environments. High-temperature industrial equipment often uses high alumina insulation brick as insulation layers. Such as the metallurgy industry.
High quality bubble alumina brick is a lightweight insulation material, the raw material is alumina. In other words, it has extremely low thermal conductivity, high strength and excellent thermal insulation properties. It has a wide range of applications. Generally speaking, alumina bubble brick is often widely used as insulation layers for high temperature industrial equipment. Such as high-temperature furnaces, heat treatment furnaces and flues.
silicate material is the raw material of silica insulation brick. So it can effectively isolate heat conduction and provide excellent thermal insulation effect. It also can improve energy efficiency. Silica insulation brick is suitable for insulation of high-temperature furnaces and chimneys. In addition, it is also used in high-temperature equipment in the metallurgical and foundry industries.
The low thermal conductivity (Wikipedia) of insulating bricks makes them an excellent thermal insulation material. Thermal conductivity indicates a material’s ability to conduct heat and low thermal conductivity means that insulation bricks can effectively isolate heat conduction. This property reduces heat loss and increases the energy efficiency of the building, thereby reducing reliance on heating and cooling systems.
Insulation bricks have excellent fire resistance and can withstand thermal radiation and flames in high temperature environments. This makes insulating fire bricks ideal for use in high-temperature equipment and industrial furnaces. That is to say, their high fire resistance helps protect equipment and buildings from fire, ensuring the safety of production processes and personnel.
Kerui insulating fire brick for sale usually has good corrosion resistance and can resist the erosion of corrosive media such as chemicals, acids and alkalis. This makes insulation bricks widely used in equipment and processes in the chemical industry, metallurgy and other corrosive environments. Their corrosion resistance helps increase equipment life and reliability.
The insulating refractories have excellent insulation properties and can effectively prevent the conduction of heat and current. This makes insulating bricks ideal for insulation in electrical equipment, high-temperature pipes and furnaces. Furthermore, their high insulation properties help reduce energy losses and safety risks to electrical systems.
Insulating fire bricks have a low thermal capacity, which is the amount of heat required per unit mass of material. In other words, this means that the insulation bricks can quickly absorb and release heat, improving the thermal response speed of the system. This is important for applications that require rapid temperature regulation, such as industrial furnaces and heating equipment. Moreover, insulating bricks are often used together with the best refractory cement.
The low shrinkage of insulating fire brick means that it has less ability to deform and shrink in high temperature environments. therefore, this allows the insulation bricks to maintain a stable shape and size in high temperature applications. This is important to ensure the accuracy and long-term stability of industrial equipment.
High quality insulating firebricks generally have a low bulk density, which means they are relatively lightweight. This makes the construction and installation process of insulation bricks more convenient. So this reduces the load on the equipment itself and reduces the complexity of construction. In addition, low volumetric density helps reduce material costs and transportation costs.
Insulation refractory bricks can effectively isolate high-temperature environments and provide good thermal protection. In addition, they can withstand corrosion and impact caused by chemicals and metallurgical processes. At the same time, the lightweight characteristics of insulation bricks make the construction of furnace lining more convenient.
The insulation fire brick applies to the furnace doors and furnace mouths. Like fire clay block, it can effectively prevent heat loss and thermal radiation from the external environment. It can withstand the high temperatures and corrosive environment around the furnace mouth. In addition, insulating brick provides a stable furnace door structure.
The low thermal conductivity of insulating bricks can reduce heat loss in flues and chimneys and improve energy efficiency. At the same time, insulating bricks can withstand the high temperatures and flue gas corrosion generated in flues and chimneys. That is to say, this ensures the structural stability of the flue and chimney.
Kerui insulating firebrick price offer unique advantages in pipe and pipe elbow insulation applications. They can effectively reduce heat conduction and loss in pipelines and can withstand chemical media and high-pressure environments. Besides, the lightweight characteristics of insulating fire brick make pipeline installation more convenient and economical.
Insulating fire brick provides good thermal protection in furnace wall and reactor wall applications. Therefore, it can withstand corrosion and impact caused by metallurgical processes. Meanwhile, the plasticity and cutability of insulating brick allow them to be adapted to the construction of furnaces and reactor walls of different shapes and sizes.
This great insulating fire brick exhibits excellent thermal insulation properties in applications such as heat shields and insulation layers. It prevents heat from being conducted outward. At the same time, the corrosion resistance of insulation brick enables them to withstand corrosion and vibration from the external environment.
the first insulating refractory bricks manufacturing process is to prepare the required ingredients. Common insulation brick raw materials include kaolin, expanded perlite, expanded vermiculite, etc. We pre-process these raw materials through processes such as crushing, screening and mixing. This ensures uniformity and stability of the raw material.
Stir the pretreated raw materials and additives. This step ensures that the raw materials and additives are fully mixed and evenly formed to form a mixture.
Inject the mixture into the insulating fire brick mold and use a press to vibrate and compact it. This step is to fill the cavity of the mold with the mixture. After a certain period of curing, the insulating brick body is formed. Then, we disassemble the mold to de-mold the thermal insulation brick body.
Dry the demoulded insulation brick body to remove moisture. Drying is performed using drying equipment. This can control the temperature and humidity to ensure that the green body is fully dry.
The dried insulating brick body needs to be sintered to make it have fire resistance and thermal insulation properties. The insulating brick body is placed in a tunnel kiln and heated for a certain period to cause it to sinter and crystallize at high temperatures. Moreover, during the sintering process, the control of temperature and time is very critical. This ensures the quality and performance of the insulation bricks.
After the sintering is completed, the surface of the insulation bricks needs to be polished. What’s more, we mechanically polish the insulation bricks to make their surfaces flat and smooth.
We conduct quality inspections on the polished insulating fire bricks. This includes inspections of dimensions, appearance quality and performance to ensure the insulation bricks meet requirements.
We package qualified insulation bricks. In addition, we usually use appropriate packaging materials for protection for storage, transportation and use.
Insulating fire brick is usually made of lightweight materials such as expanded perlite, expanded vermiculite, etc. These materials have lower density and thermal conductivity to provide good insulation properties.
Refractory brick is mainly made of high temperature resistant materials, such as high alumina materials, siliceous materials, etc. These materials have high melting points and high temperature resistance. Therefore, it can withstand chemical and thermal effects in high temperature environments.
In addition, the content of the same component in insulating bricks and refractory bricks is also very different. For example, the aluminum content of high alumina refractory bricks is as high as 80%, while the aluminum content of high alumina insulation bricks is only about 48%.
Thermal insulation of equipment usually uses Insulation bricks to reduce heat conduction and energy loss. The insulation layer of furnace doors and furnace walls widely use them.
Refractory structures and high temperature environments mainly use refractory bricks. They are resistant to corrosion and chemical reactions from high-temperature molten substances. Therefore, it is used in furnaces, furnace walls, chimneys, high-temperature equipment and other occasions.
The insulating fire bricks have a low thermal conductivity and can effectively reduce heat conduction. They prevent heat loss and provide good thermal insulation properties. Therefore, we can keep the temperature of the equipment stable and reduce energy consumption.
These refractory bricks have excellent fire resistance and can withstand chemical and thermal effects in high temperature environments. They have high melting points and corrosion resistance and maintain structural stability and integrity at high temperatures.
As insulating fire brick manufacturers, Kerui insulating fire brick has excellent durability and can maintain its thermal insulation performance and structural stability for a long time. This means that once installed, we can use Kerui insulation bricks for a long time without the need for frequent replacement or repair.
As refractory fire brick suppliers, using Kerui insulation brick can effectively reduce heat conduction and energy loss. So, this can reduce the frequency of use and energy consumption of heating or cooling equipment. Therefore, this will result in significant energy cost savings.
Because Kerui insulation bricks have high durability, they are not prone to breakage or damage. This means reduced downtime for maintenance. So, equipment can maintain normal operation for a longer period, improving production efficiency and economic benefits.
Using Kerui insulating fire brick can achieve cost savings in many aspects. We are a direct selling manufacturer and our factory is located in a gathering place of raw materials, so the cost is relatively low. Therefore, Kerui can bring you long-term economic benefits.
Kerui refractory materials have an annual output of 250,000 tons. So we can meet the needs of global customers for refractory brick insulation. Through efficient production, Kerui is able to stably supply various types of firebrick insulation products.
Kerui company global service network can provide customers with timely technical support, pre-sales consultation and after-sales service. Therefore, we ensure that customers who purchase insulation bricks can enjoy professional services all over the world.
Through an in-depth understanding of customer needs and industry trends, Kerui can provide insulation brick products and system solutions that meet specific project requirements. Moreover, this can meet the individual needs of customers.
Various fields use Kerui insulating refractories widely. Such as ceramic industry, refractory steel industry, chemical industry and industrial equipment. Kerui can provide suitable insulating firebricks and solutions for customers in different application fields.
Kerui can customize insulating fire brick according to customers’ specific needs. In addition, we also provide personalized services such as technical support, design consultation and engineering cooperation to ensure customer satisfaction.
We have adopted environmentally friendly and sustainable measures in product design, production and supply chain management. Kerui insulation brick products comply with environmental protection standards and can help customers reduce energy consumption.
Kerui Group is very international and the economic benefits of our insulating fire brick are particularly high. This has enabled us to maintain a stable foothold in the refractory industry for more than 20 years. Therefore, Kerui will be your reliable choice. Feel free to contact us anytime!