Insulating Fire Brick for Hot Blast Stove Refractory Applications
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Specifications
Fire brick1.ISO 9001 approved,
2.With high quality and competitive price,
3.Standard and special shape.
Fire-clay refractory brick.
1. N-1
AL2O3 (%)>42
Refractoriness >1750
Refractoriness under load KD>1400
Permanent linear change onreheating
1500*2h
1450*2h
1400*2h:+0.1; -0.4
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>29.4
2. N-2a
AL2O3 (%)>40
Refractoriness >1730
Refractoriness under load KD>1350
Permanent linear change onreheating
1500*2h
1450*2h
1400*2h:+0.1; -0.5
Apparent Porosity(%)<24
Cold crushing strength (Mpa)>24.5
High-alumina refractory brick
1. LZ-75
AL2O3 (%)>75
Refractoriness>1790
Refractoriness under load KD>1520
Permanent linear change onreheating
1500*2h:+0.1; -0.4
1450*2h
1400*2h
Apparent Porosity(%)<23
Cold crushing strength (Mpa)>53.9
2. LZ-65
AL2O3 (%)>65
Refractoriness >1790
Refractoriness under load KD>1500
Permanent linear change onreheating
1500*2h:+0.1; -0.4
1450*2h
1400*2h
Apparent Porosity(%)<23
Cold crushing strength (Mpa)>49
3.LZ-55
AL2O3 (%)>55
Refractoriness >1770
Refractoriness under load KD>1470
Permanent linear change onreheating
1500*2h:+0.1; -0.4
1450*2h
1400*2h
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>44.1
4.LZ-48
AL2O3 (%)>48
Refractoriness >1750
Refractoriness under load KD>1420
Permanent linear change onreheating
1500*2h
1450*2h:+0.1; -0.4
1400*2h
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>39.2
Fire clay brick SK-32 | |
Item | Standard |
AI2O3(%) | 30 |
Fe2O3 (%) | 3.5 |
Refractoriness (SK) | 32 |
Refractoriness under load, 0.2MPa, Ta, (°C) | 1300 |
Porosity (%) | 22-26 |
Bulk density (g/cm³) | 2.05 |
Cold crushing strength (MPa) | 25 |
Thermal expansion at 1000°C (%) | 0.6 |
Fire clay brick SK-34 | |
Item | Standard |
AI2O3(%) | 38 |
Fe2O3 (%) | 2.5 |
Refractoriness (SK) | 34 |
Refractoriness under load, 0.2MPa, Ta, (°C) | 1350 |
Porosity (%) | 19-23 |
Bulk density (g/cm³) | 2.10-2.15 |
Cold crushing strength (MPa) | 25 |
Thermal expansion at 1000°C (%) | 0.6 |
Fire clay brick SK-36 | |
Item | Standard |
AI2O3(%) | 50 |
Fe2O3 (%) | 2 |
Refractoriness (SK) | 36 |
Refractoriness under load, 0.2MPa, Ta, (°C) | 1450 |
Porosity (%) | 20-24 |
Bulk density (g/cm³) | 2.30-2.40 |
Cold crushing strength (MPa) | 45 |
Thermal expansion at 1000°C (%) | 0.3 |
- Q: What are the different types of insulating fire bricks available in the market?
- There are several different types of insulating fire bricks available in the market. Some of the most common types include: 1. Lightweight Fire Bricks: These bricks are made from lightweight and porous materials, such as expanded clay, vermiculite, or perlite. They offer excellent insulation properties and are commonly used in applications where weight is a concern, such as for lining the walls of kilns or furnaces. 2. Ceramic Fiber Bricks: These bricks are made from ceramic fibers that are compressed and formed into bricks. They have high insulating properties, low thermal conductivity, and can withstand high temperatures. Ceramic fiber bricks are often used in applications that require high-temperature insulation, such as in the construction of industrial furnaces or ovens. 3. Calcium Silicate Bricks: These bricks are made from a combination of lime, silica, and reinforcing fibers. They have good thermal insulation properties and are resistant to thermal shock. Calcium silicate bricks are commonly used in applications where high-temperature insulation is required, such as in the construction of boilers or incinerators. 4. Magnesia Bricks: These bricks are made from magnesium oxide, which is a highly refractory material. They have excellent thermal insulation properties and can withstand extremely high temperatures. Magnesia bricks are often used in applications that require insulation in high-temperature environments, such as in the lining of steel-making furnaces or glass melting tanks. 5. Vermiculite Bricks: These bricks are made from expanded vermiculite, which is a naturally occurring mineral. They have good insulation properties, low thermal conductivity, and are resistant to high temperatures. Vermiculite bricks are commonly used in applications that require lightweight insulation, such as in the construction of chimneys or fireplace surrounds. Overall, the choice of insulating fire bricks depends on the specific requirements of the application, such as the desired level of insulation, temperature resistance, and weight considerations.
- Q: Are insulating fire bricks resistant to gas permeability?
- Yes, insulating fire bricks are resistant to gas permeability. They have low porosity and high density, which prevents the penetration of gases, making them an effective barrier against gas permeation.
- Q: Can insulating fire bricks be used in boilers for residential heating?
- Insulating fire bricks can indeed be utilized for residential heating boilers. These bricks are specifically engineered to endure elevated temperatures and offer superior thermal insulation properties. Their utilization in boiler and furnace construction is widespread due to their remarkable heat retention capabilities and ability to prevent heat dissipation. Consequently, the incorporation of these bricks aids in enhancing the energy efficiency of the boiler system by minimizing heat transfer to the surroundings, resulting in more effective heating and reduced energy consumption. Furthermore, the durability and resistance to thermal shock exhibited by insulating fire bricks make them ideal for withstanding the intense temperatures and rapid temperature fluctuations typically encountered in boilers. Consequently, their implementation in residential heating boilers serves to enhance both performance and energy efficiency.
- Q: Are insulating fire bricks suitable for use in furnaces?
- Yes, insulating fire bricks are suitable for use in furnaces. They have excellent thermal insulation properties, high temperature resistance, and can withstand the harsh conditions inside a furnace without cracking or breaking. These bricks help to maintain consistent temperatures, reduce heat loss, and improve energy efficiency in furnaces.
- Q: Can insulating fire bricks be used in the construction of radiant tubes?
- Yes, insulating fire bricks can be used in the construction of radiant tubes. Insulating fire bricks are specially designed to provide excellent thermal insulation, making them ideal for applications where heat retention is important. Radiant tubes are used in high-temperature environments, such as furnaces and kilns, where they are exposed to extreme heat. Insulating fire bricks can withstand these high temperatures and help to minimize heat loss, resulting in improved energy efficiency. Additionally, the insulating properties of these bricks can also help to protect the radiant tubes from thermal shock and prolong their lifespan. Overall, using insulating fire bricks in the construction of radiant tubes can enhance their performance and durability.
- Q: Can insulating fire bricks be used in the construction of lime production molds?
- Yes, insulating fire bricks can be used in the construction of lime production molds. Insulating fire bricks are designed to have high thermal resistance, making them ideal for applications that require insulation and protection from high temperatures. Lime production molds often involve high temperatures during the firing process, and insulating fire bricks can help maintain the desired temperature and prevent heat loss. Additionally, the insulating properties of these bricks can help reduce energy consumption and improve the efficiency of the lime production process. Therefore, using insulating fire bricks in the construction of lime production molds is a suitable choice.
- Q: Can insulating fire bricks be used in the construction of pottery slab rollers?
- Yes, insulating fire bricks can be used in the construction of pottery slab rollers. These bricks can provide thermal insulation and withstand high temperatures, making them suitable for pottery kilns and other heat-intensive applications like slab rollers.
- Q: How do insulating fire bricks perform in terms of thermal stability?
- Insulating fire bricks are known for their excellent thermal stability. They have a high resistance to thermal shock, meaning they can withstand rapid changes in temperature without cracking or breaking. Additionally, insulating fire bricks have low thermal conductivity, which allows them to effectively retain heat and provide insulation in high-temperature environments. Overall, their performance in terms of thermal stability is highly reliable.
- Q: Are insulating fire bricks resistant to cracking?
- Insulating fire bricks are specifically designed to have a high resistance to cracking. They are made from lightweight ceramic materials that have low thermal conductivity and high thermal shock resistance. These properties enable the bricks to withstand rapid temperature changes without cracking. Additionally, insulating fire bricks undergo a firing process that strengthens their structure and minimizes the risk of cracking. However, it is important to note that extreme thermal shock or physical impact can still potentially cause cracking in insulating fire bricks, so proper handling and installation techniques should be followed to ensure their longevity and effectiveness.
- Q: What is a heat insulating brick?
- Thermal insulation brick is a new type of energy-saving building insulation technology with inorganic composite material as the main material. It is an ideal technology to replace the traditional wall insulation.
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Insulating Fire Brick for Hot Blast Stove Refractory Applications
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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