Insulation Bricks
Shandong Haixin Refractory Material Co., Ltd. is located in Zibo, a nationally renowned refractory raw material production base. It is a large modern enterprise group integrating refractory material production and refractory furnace engineering construction.The company was founded in 1988. It mainly produces dozens of brands and hundreds of varieties of refractory products such as castable series, plastic series, prefabricated parts, refractory bricks, insulation bricks, aluminum silicate ceramic fibers, etc. After 30 years of development, our company has become a production base for wear-resistant refractory materials for industrial furnaces and kilns, and is a high-quality supplier of refractory materials for industrial furnaces and kilns with strong technical strength and supporting capabilities in China.
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![Lightweight Clay Insulation Brick]()
Lightweight Clay Insulation BrickLightweight clay insulation bricks are porous lightweight insulation materials, and the Al2O3 content is 30%-46% high-temperature insulation refractory materials. It uses refractory clay clinker...read more -
![Lightweight Mullite Brick]()
Lightweight Mullite BrickLightweight mullite bricks are made mainly from mullite and formed by high-pressure molding and high-temperature sintering. They offer excellent thermal shock, wear, and chemical resistance, and...read more -
![High Alumina Poly Light Ball Insulation Brick]()
High Alumina Poly Light Ball Insulation BrickHigh-alumina polylight ball insulation bricks are mainly made of special high-alumina clinker and high-purity clay as the main raw materials. They are filled with polystyrene foam balls by adding...read more -
![Lightweight High Alumina Brick]()
Lightweight High Alumina BrickLightweight high alumina bricks are lightweight refractory materials with an alumina content of over 48%, mainly composed of mullite and a glassy phase or corundum. They have a bulk density of...read more -
![High Strength and High Alumina Insulating Refractory Bricks]()
High Strength and High Alumina Insulating Refractory BricksHigh-strength high-alumina insulating refractory bricks are a type of refractory material with a high alumina content (Al2O3), which are usually used for lining industrial equipment in...read more -
![Lightweight Mullite Poly Light Insulation Brick]()
Lightweight Mullite Poly Light Insulation BrickLightweight mullite polylight insulation brick is a high-quality heat-insulating brick. Mullite polylight insulation brick refers to a lightweight refractory product containing 30%-46% Al2O3. It...read more -
![Lightweight Silica Brick]()
Lightweight Silica BrickLightweight silica bricks are also called silica insulation bricks. They are lightweight refractory materials with a silica content of more than 91% and a bulk density of less than 1.2g/cm3. The...read more -
![Lightweight Corundum Mullite Brick]()
Lightweight Corundum Mullite BrickLightweight corundum mullite bricks offer excellent high-temperature resistance, low thermal conductivity, high strength, and outstanding thermal shock stability. They are widely used as lining...read more -
![Lightweight Alumina Hollow Ball Brick]()
Lightweight Alumina Hollow Ball BrickLightweight alumina hollow ball brick is a new type of high-temperature thermal insulation material, mainly made of alumina hollow balls and alumina powder as the main raw materials, with a...read more -
![Lightweight Corundum Brick]()
Lightweight Corundum BrickLightweight corundum bricks are premium refractory materials that combine high refractoriness with excellent thermal insulation. Made from high-purity corundum, they significantly reduce furnace...read more -
![Mullite Refractory Clay]()
Mullite Refractory ClayMullite refractory clay is an important refractory material. Its main components include high-purity refractory clay and alumina. It is made by adding an appropriate amount of organic filler. It...read more -
![Mullite Lightweight Brick]()
Mullite Lightweight BrickMullite lightweight brick is a kind of heat-insulating brick made of high-quality high-alumina bauxite clinker as the main raw material. It is made into plastic mud or mud by adding appropriate...read more
Customized Services
Provide customized services to customers, design and produce the most suitable refractory materials according to their specific working conditions to ensure the best use effect.
Certification
The products have passed ISO9001 quality management system certification. Each batch of products meets international standards and has excellent cost performance, creating the greatest value for customers.
Sales Market
Our products are exported to the United States, Germany, Russia, India, Iran, Indonesia, Bangladesh, Kyrgyzstan and other countries and regions, providing high-quality products and services to domestic and foreign customers.
Excellent thermal insulation
Insulation bricks are characterized by theirlow thermal conductivity,typicaly ranging from 0.2 to0.4wimk. This property allowsthemto effectively insulate against high temperatures, reducing heat transfer and minimizing energy loss in industrial processes.
Lightweight construction
As a lightweight refractory material, insulation brick offers ease of handling and installation, reducing labor costs and construction time. Its lightweight nature also minimizes structural loads on equipment and support structures, enhancing overall operational efficiency.
High temperature resistance
Insulation brick possesses excellent resistance to high temperatures, withstanding continuous operating temperatures ranging from 1200°c to 1800°c (2192°f to 3272°f) depending on the specific formulation and application. This makes it suitable for use in furnaces, kilns, and other heat-intensive industrial processes.
Thermal shock resistance
The inherent thermal shock resistance of insulation brick allows it to withstand rapid temperature fluctuations without cracking or spalling. This property is particularly beneficial in applications involving cyclic heating and cooling, ensuring long-term durability and reliability.
Chemical stability
Insulation brick exhibits excellent chemical stability, resisting the corrosive effects of molten metals, slag, and harsh chemicals encountered in various industrial processes. Its inert nature helps prolong equipment lifespan and minimize maintenance requirements, resulting in cost savings over time.
Uniform thermal performance
The homogeneous microstructure of refractory products ensures uniform thermal performance throughout its service life. This consistency in thermal insulation properties helps maintain process stability and product quality in applications where temperature uniformity is critical.
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Brand |
HXM-23 |
HXM-24 |
HXM-26 |
HXM-28 |
HXM-30 |
|
Classification temperature ℃ |
1260 |
1350 |
1430 |
1540 |
1650 |
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Bulk density g／cm3 ＜ |
0.6 |
0.8 |
0.8-1.0 |
0.9-1.1 |
1.0-1.2 |
|
Compressive strength Mpa ≥ |
1.3 |
2.0 |
3.0 |
3.5 |
3.5 |
|
Re-firing line changes ％(℃) |
1250×12-0.5 |
1320×12-0.5 |
1400×12-0.5 |
1510×12-0.9 |
1600×12-0.9 |
|
Thermal Conductivity W／m．k(350±25℃) |
0.22 |
0.26 |
0.26 |
0.32 |
0.41 |
|
Al203 % ≥ |
50 |
55 |
60 |
65 |
70 |
|
Fe203 % ＜ |
1.2 |
1.2 |
1.2 |
1.0 |
1.0 |
Application of insulation bricks
Ceramics industry
In ceramic kilns, insulation bricks provide efficient heat retention and reduce energy consumption. Their lightweight nature also facilitates easier installation and maintenance.
Metallurgy industry
In steel and aluminum production, the insulation bricks are used in furnaces and ladles to maintain high temperatures and prevent heat loss.
Glass manufacturing
In glass furnaces, the insulation bricks help in maintaining a uniform temperature distribution, leading to improved glass quality and reduced energy consumption.
Furnace and kiln lining
Insulation brick is widely used to line industrial furnaces, kilns, and incinerators, providing thermal insulation and heat containment to optimize energy efficiency and productivity.
Metal processing
Insulation brick finds application in the non-ferrous metal industry for lining crucibles, tundishes, and casting molds, where it provides thermal insulation and resistance to molten metal corrosion.
Petrochemical and chemical processing
In petrochemical and chemical plants, insulation brick is utilized in process furnaces, reactors, and thermal oxidizers to maintain elevated temperatures and protect equipment from chemical attack.
Types of Insulation Bricks
Lightweight Clay Insulation Brick
Lightweight clay insulation bricks are usually used in the thermal insulation of industrial furnaces according to their functional characteristics, which can reduce the heat loss of the furnace and save power. The operating temperature of them is between 1200℃and 1400℃.
Mullite Insulation Brick
Mullite insulation brick can directly touch the flame, whose refractoriness can reach above 1790℃, and the larger use temperature is between 1350℃ and 1450℃.
Silica Insulation Bricks
Silica insulation bricks are commonly made up of high refractoriness under load, it does not change shape when reheated, glass liquid is protected from pollution and it also has a high thermal shock resistance.These kinds of bricks are acid resistant and are commonly used in a glass-melting furnace such as the chute, coking, furnace arch, or combustion chamber, among others.
High Alumina Insulation Bricks
High Alumina Insulation bricks have a very high resistance to abrasion, chemical attack, and thermal shock, among others. It also helps in reducing atmospheric chemical attacks, it has a low volume density, etc.It is mostly used in constructing coke ovens, blast furnaces, lime kilns, and industry chimneys, among others.
Alumina Bubble Brick
Alumina bubble brick is made of alumina hollow spheres and alumina powder as the primary material, with the addition of other binders, fired at a high temperature of 1750℃. So it is a kind of energy-saving insulation material attributed to ultra-high temperature materials.Alumina bubble brick is very stable in all kinds of atmospheres, especially used in high temperature furnaces at 1800℃.
The manufacturing process of insulation bricks typically involves the following steps:
Raw Material Preparation: The raw materials, including refractory aggregates and binders, are carefully weighed and crushed to achieve a uniform particle size distribution.
Mixing and Homogenization: The prepared materials are thoroughly mixed using appropriate equipment to ensure a homogeneous mixture.
Molding: The prepared brick mix is shaped into desired forms using various molding techniques, such as extrusion, pressing, or slip casting.
Drying: The molded bricks undergo a controlled drying process to remove excess moisture without causing cracking or deformation.
Firing: The dried bricks are fired in high-temperature kilns, typically at temperatures ranging from 1200°C to 1600°C (2192°F to 2912°F). During firing, the binder vitrifies, bonding the refractory aggregates together, and the microstructure of the brick develops, influencing its final properties.
Cooling and Inspection: The fired bricks are carefully cooled down to prevent thermal shock and then inspected for any defects or inconsistencies.
Packaging and Shipping
FAQ
We're well-known as one of the leading insulation bricks manufacturers and suppliers in China. Please feel free to buy insulation bricks at competitive price from our factory. Contact us for more details.