Your Professional Silica Brick Supplier
Shandong Luming New Materials Technology Co., LTD covers an area of 62 acres(approx. 41,000㎡),offers end-to-end production solutions. We are fully equipped with facilities for raw material crushing and pulverizing, automated castable batching, precast block molding, tunnel drying, high-temperature shuttle kiln firing, and precision processing of both precast and fired products, ensuring we can fulfill the requirements of customers in any industry.Shandong Luming New Materials Technology Co., LTD Founded in 2003, it is the largest unshaped refractory material production enterprise in Shandong Province, located in Zhoucun District, Zibo City.
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![Silica Refractory Brick]()
Silica Refractory BrickSilica refractory brick is an important acidic refractory material widely used in industrial high-temperature kilns (such as glass melting furnaces, coke ovens, and hot blast stoves) due to its...view more -
![Sintered Silicon Bricks]()
Sintered Silicon BricksSintered silicon bricks are a type of refractory material primarily composed of silicon dioxide (SiO₂), produced through high-temperature sintering processes. They are widely used in...view more -
![Fused Silica Brick]()
Fused Silica BrickFused silica brick,also known as zero-expansion silica brick or thermal shock resistant silica brick, is a high-performance refractory material primarily made from high-purity fused quartz...view more -
![Semi-silica Brick]()
Semi-silica BrickSemi Silica brick is a type of aluminosilicate refractory material, primarily composed of silicon dioxide (SiO2) and aluminum oxide (Al2O3). Its performance falls between that of fireclay bricks...view more -
![Silica Mullite Brick]()
Silica Mullite BrickSilica Mullite Brick is an important high-temperature refractory material that is widely used in high-temperature industrial fields such as iron and steel, non-ferrous metals, and petrochemicals...view more
Why Choose Us
Quality Assurance
Our company obtained ISO9001 International Quality Management System certification from the China Quality Certification Centre (CQC) in 2006.
After-Sale Service
Professional and thoughtful after -sales team, let you worry about us after -sales Intimate service, strong after -sales team support.
Custom-Engineered Solutions
By pioneering new energy-saving refractory materials and innovating kiln lining designs, we dedicate ourselves to helping clients achieve energy conservation and emission reduction goals.
Production Market
We have established long-term business cooperation and joint product R&D projects with leading design institutes, including:Dalian Design & Research Institute of ACRE (Coking & Refractory Engineering Consulting Corporation, MCC)),Shandong Metallurgical Design Institute Co., Ltd,Changsha Research Institute of Mining and Metallurgy (CRIMM), Minmetals.
Exceptional Thermal Resistance: These materials maintain their structural integrity even at temperatures exceeding 1700°C, making them ideal for extreme heat applications.
Chemical Stability: Their unique composition provides superior resistance to acidic environments and chemical degradation, ensuring longer operational life.
Cost-Effective Performance: Despite the initial investment, their durability and longevity make them a cost-effective choice for industrial applications.
Minimal Maintenance Requirements: Their robust nature significantly reduces the need for frequent replacements and repairs.
Paramenters
|
Item |
GZ-96 |
GZ-95 |
GZ-94 |
|
|
SiO2%≥ |
96 |
95 |
94 |
|
|
Fe2O3%≤ |
1.0 |
1.2 |
1.4 |
|
|
Porosity,% ≤ |
22 |
22 |
22 |
|
|
CCS,Mpa≥ |
Weight<20kg |
35 |
35 |
35 |
|
Weight>20kg |
30 |
20 |
20 |
|
|
RUL ,0.2Mpa, ℃ ≥ |
1660 |
1650 |
1640 |
|
|
Ture density,g/cm3≤ |
2.34 |
2.35 |
2.35 |
|
There are many varieties of silica bricks, which can be divided into: silica bricks for coke ovens, silica bricks for hot blast furnaces, silica bricks for electric furnaces, silica bricks for glass kilns, etc.
According to the complexity of the brick type, it can be divided into standard brick, general brick, special brick, and special brick.
Composition of Silica Brick
Silica (Sand)
High-purity silica sand is the primary raw material. Around 93-96% of this brick consists of silica.
Alumina
Around 1-3% of the silica brick consists of Alumina, making it the secondary raw material.
Other materials
Iron Oxide & Calcium Oxide are added at a range of 0.5-1.5%, and Magnesium Oxide is added at a range of 0.2-0.5%.
Properties of Silica Brick
Density
The density of the silica bricks varies based on the quality of the silica used and the grain size distribution. In general, the density of silica bricks ranges from 1800 kg/m³ to 2200 kg/m³ based on the pore volume, voids and compactness.
Porosity
Around 10 to 20% of the silica brick consists of pore holes and voids, which impacts the mechanical strength and thermal and chemical properties.
Compressive Strength
The compressive strength of silica bricks varies based on factors such as silica content, firing temperature, porosity, and impurities. Typically, the compressive strength of this brick ranges from 50 MPa to 100 MPa.
High Thermal Resistance
Silica brick is known for its high thermal resistance, allowing it to withstand high temperatures up to 1650℃ or even higher based on the quality and composition of raw materials. It is also resistant to thermal shock and is suitable for places where sudden temperature changes occur.
Chemical Resistance
Silica bricks provide high chemical resistance and have the ability to withstand the aggressive effects of acids, alkalis and other corrosive substances.
Low Expansion Coefficient
Silica bricks have a low coefficient for thermal expansion, which means they can expand and contract less when compared to other refractory bricks. This reduces the risk of cracking and ensures the structural integrity.
Manufacturing Process of Silica Brick
Preparation of Raw Materials
Choosing high-quality silica-containing components such as quartzite, silica sand, or ganister is crucial. A small amount of binder materials, such as cement or lime sand, is added to hold the silica grains together.
Mixing
The prepared raw materials are mixed and ground together inside a ball mill at a specific ratio into a fine powder.
Moulding
The powdered mixture is transferred into a mold and compacted using a hydraulic press and vibrator to remove air pockets and ensure a dense and uniform structure.
Drying
The moulded bricks are then dried in a controlled environment under sustainable temperatures to remove excess moisture and prevent thermal shock or damage.
Firing
The dried bricks are then kiln burnt at a very high temperature of 1400℃ to 1600℃ to achieve the potential strength and resistance.
Testing & Storing
After the firing process, the silica brick is cooled down and tested to check for various properties. The tested bricks are then stored in a controlled environment before packing and shipping to the construction site.
Glass industry
Silica bricks are mainly used in masonry roofs, parapets, hanging walls, and flow channels of glass-melting furnaces. According to the temperature of the high-temperature gas in the glass, furnace is as high as 1615 ° C, the silica refractory bricks on the roof must withstand gravity, mechanical stress, and high temperature. Therefore, it needs to have good high-temperature mechanical properties; the volume stability at high temperatures is good, and the volume of the product cannot change during use, otherwise, it will cause deformation, damage, or even collapse of the furnace.
Iron industry
In the iron and steel industry, silica bricks are widely used as refractory linings in high-temperature areas such as blast furnaces, converters, electric arc furnaces, and continuous casting equipment. It can withstand extremely high temperatures and chemical attacks, protecting equipment from molten metal and slag.
Petrochemical industry
Silica refractory bricks also have critical applications in the petrochemical industry. It is used as a refractory lining for cracking furnaces, and catalytic and refining units. The high-temperature stability and acid and alkali corrosion resistance of silica bricks enable them to operate stably for a long time in harsh petrochemical process environments.
FAQ
As one of the most professional silica brick manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy silica brick at competitive price from our factory.
Silica Mullite Brick, Sintered Silicon Bricks, Semi-silica Brick
