Refractory Mullite Insulating Refractory Brick JM 29
- Ref Price:
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 20 m.t./month
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General Information
CMAX insulating firebricks are classified under temperature between 1300℃ to 1700℃, manufactured from high purity alumina clay.
1. Lower content of iron, alkaline and impurities, good high temperature properties.
2. Homogeneous structure, light weight, energy saving because lower heat storage in the furnace during cooling cycles.
3. High strength, good thermal shock resistance under high temperature.
4. Precise sizes due to grinding and shaping after sintering, which meets the requirement of construction.
5. Max service temp: Up to 1730C (3160F)
Feature
Light weight and low thermal conductivity
Low heat storage
Low iron and impurities
High thermal shock resistance
Application of Insulating brick
Metallurgical Industry: blast furnace, hot blast furnace, heating furnace, etc..
Petrochemical Industry: ethylene cracking furnace, hydrogen furnace, the main furnace, heating furnace, etc..
Ceramic industry: roller kiln, kiln, etc..
Glass industry: glass furnace regenerator, etc.
Carbon industry: carbon furnace, etc..
Aluminum electrolysis industry: aluminum reduction cell, etc.
Other industries: tunnel kiln, shuttle kiln, etc.
Advantages of heat insulation brick
Low thermal conductivity: many air holes will bring good thermal insulation effect, energy saving.
High crushing strength: high crushing strength, volume stability.
Low heat storage: small heat storage, absorb more heat, energy-saving effect is obvious.
Technical Data
ITEM | GJM30 | GJM28 | GJM26 | GJM23 |
Classification Temperature, ℉/℃ | 3000/1650 | 2800/1540 | 2600/1430 | 2300/1260 |
Bulk Density，g/cm³ | ≤1.0 | ≤0.9 | ≤0.8 | ≥0.5 |
Reheating Linear Change, % | ≤0.9 (1550℃,12 h) | ≤0.8 (1510℃,12 h) | ≤0.7 (1410℃,12 h) | ≤0.5 (1230℃,12 h) |
Al2O3 Content, % | ≥75 | ≥65 | ≥55 | ≥45 |
Fe2O3 Content, % | ≤0.5 | ≤0.6 | ≤0.7 | ≤1.0 |
Thermal Conductivity: | ||||
800℃, w/m.k | ≤0.39 | ≤0.37 | ≤0.35 | ≤0.18 |
1000℃, w/m.k | ≤0.43 | ≤0.41 | ≤0.39 | ≤0.20 |
1200℃, w/m.k | ≤0.48 | ≤0.46 | ≤0.43 | --- |
Insulating brick
- Q:Can insulating fire bricks be used in high-velocity gas flow applications?
- Yes, insulating fire bricks can be used in high-velocity gas flow applications. Insulating fire bricks are designed to have excellent thermal insulation properties, low thermal conductivity, and high resistance to temperature fluctuations. These characteristics make them suitable for various high-temperature applications, including high-velocity gas flow environments. When exposed to high-velocity gas flow, insulating fire bricks can maintain their structural integrity and insulation properties, providing effective thermal insulation and protection. They are often used in applications such as kilns, furnaces, boilers, and other industrial equipment where high-velocity gas flow is present. However, it is important to consider the specific requirements and characteristics of the gas flow in the application. Factors such as temperature, pressure, and chemical composition of the gas should be taken into account to ensure that the insulating fire bricks are compatible and can withstand the conditions. In summary, insulating fire bricks can be used in high-velocity gas flow applications due to their thermal insulation properties and resistance to temperature fluctuations. However, it is crucial to consider the specific requirements and characteristics of the gas flow to ensure proper compatibility and performance.
- Q:Can insulating fire bricks be used for insulation in incinerators?
- Indeed, insulation in incinerators can be achieved by utilizing insulating fire bricks. Constructed from lightweight refractory materials, these bricks possess excellent insulating characteristics, rendering them highly suitable for applications demanding heat containment and energy efficiency, such as incinerators. Due to their low thermal conductivity, these bricks effectively trap and retain heat within the incinerator, thereby preventing heat leakage and enhancing the overall efficiency of the incineration procedure. Furthermore, insulating fire bricks exhibit remarkable resistance to high temperatures and can endure the harsh conditions commonly encountered in incinerators, establishing them as a dependable option for insulation purposes.
- Q:Can insulating fire bricks be used in hydrogen furnaces?
- Insulating fire bricks possess the capability to be utilized in hydrogen furnaces, although it is imperative to acknowledge that not all variants of insulating fire bricks are suitable for this particular purpose. Due to the highly reactive nature of hydrogen gas, certain materials can deteriorate or react, thereby giving rise to concerns regarding safety and potential harm to the furnace. When making a selection of insulating fire bricks for employment in hydrogen furnaces, it becomes crucial to opt for bricks that are explicitly designed for environments characterized by high temperatures and corrosive conditions. These bricks ought to be constructed from materials that exhibit resistance against hydrogen embrittlement and possess a low reactivity with hydrogen. Silicon carbide (SiC) and alumina-silica (Al2O3-SiO2) are frequently utilized materials for insulating fire bricks within hydrogen furnaces. These materials boast remarkable resistance to elevated temperatures and remain chemically stable when exposed to hydrogen. Moreover, it is of utmost importance to take into account the density and porosity of the insulating fire bricks. For hydrogen furnaces, it is preferable to employ bricks with low density and high porosity, as they offer enhanced thermal insulation and diminish the likelihood of hydrogen leakage. In conclusion, while insulating fire bricks can be employed in hydrogen furnaces, it is crucial to meticulously select the appropriate type of bricks that are specifically engineered for high-temperature and corrosive environments, and exhibit commendable resistance against hydrogen embrittlement and reactivity. Seeking consultation from specialists in the field and adhering to the guidelines provided by the manufacturer is highly recommended to ensure the safe and efficient operation of the hydrogen furnace.
- Q:Can insulating fire bricks be used in high-temperature insulation applications?
- Indeed, high-temperature insulation applications can employ insulating fire bricks. These bricks are specifically engineered to endure and preserve heat in elevated temperatures. With their low thermal conductivity and exceptional insulation capabilities, they prove to be the perfect choice for containing and insulating high temperatures. Their widespread usage can be observed in industries like steel, glass, and ceramics, as well as in furnaces, kilns, and other equipment operating at extreme temperatures. By effectively retaining heat and minimizing energy loss, insulating fire bricks offer a dependable and efficient insulation solution for high-temperature environments.
- Q:Can insulating fire bricks be used in the construction of brick kilns?
- Insulating fire bricks are capable of being utilized in the construction of brick kilns. Designed specifically with high thermal resistance, these bricks are well-suited for scenarios requiring insulation. Within brick kilns, insulating fire bricks may be employed to line the walls, floor, and roof of the kiln, effectively maintaining heat and enhancing energy efficiency. These bricks possess the ability to withstand elevated temperatures, providing insulation against the heat generated throughout the firing process. Furthermore, they aid in reducing heat loss, resulting in quicker and more efficient firing cycles. In conclusion, incorporating insulating fire bricks into the construction of brick kilns can elevate their performance and contribute to a more effective and sustainable operation.
- Q:Do insulating fire bricks have a high electrical resistivity?
- Insulating fire bricks are generally characterized by their high electrical resistivity. This characteristic arises from their specific design, which aims to minimize thermal conductivity and maximize thermal resistance. Consequently, the insulating materials employed in these bricks, including alumina, silica, and other refractory materials, exhibit inherently high electrical resistivity. Moreover, the manufacturing procedures frequently incorporate the incorporation of insulating additives, thereby augmenting the electrical resistivity of the fire bricks. Consequently, insulating fire bricks prove to be highly effective in mitigating heat transfer and sustaining elevated temperatures across diverse industrial applications, such as kilns, furnaces, and thermal insulation systems.
- Q:Can insulating fire bricks be used in the construction of autoclaves?
- Insulating fire bricks are indeed applicable for the construction of autoclaves. Autoclaves necessitate materials capable of enduring high temperatures and pressures, and insulating fire bricks are specifically engineered to exhibit exceptional thermal resistance and insulation characteristics. These bricks consist of refractory materials such as alumina, silica, and other additives that enable them to withstand extreme temperatures and thermal shocks. Furthermore, they possess a lightweight composition and low thermal conductivity, thereby reducing heat loss and enhancing energy efficiency within autoclaves. Moreover, insulating fire bricks are endowed with a commendable load-bearing capacity, rendering them suitable for the structural elements of autoclaves. In summary, the utilization of insulating fire bricks during the construction of autoclaves serves to guarantee the safety and effectiveness of the equipment.
- Q:Can insulating fire bricks be used in the construction of flue gas ducts?
- Yes, insulating fire bricks can be used in the construction of flue gas ducts. Insulating fire bricks are specifically designed to withstand high temperatures and provide excellent thermal insulation. This makes them a suitable choice for lining flue gas ducts, as they can help to reduce heat loss and improve energy efficiency. Additionally, insulating fire bricks are resistant to chemical corrosion and can withstand the corrosive effects of flue gases. However, it is important to ensure that the insulating fire bricks used are specifically designed for flue gas duct applications and meet the necessary safety and regulatory requirements. Consulting with a professional engineer or specialist in the field is recommended to ensure the correct selection and installation of insulating fire bricks in flue gas ducts.
- Q:Can insulating fire bricks be used for insulation in drying ovens?
- Yes, insulating fire bricks can be used for insulation in drying ovens. These bricks are designed to withstand high temperatures and are excellent at retaining heat, making them an ideal choice for insulating drying ovens. They help to minimize heat loss, improve energy efficiency, and maintain a consistent temperature within the oven, ensuring better and more efficient drying of materials.
- Q:Are insulating fire bricks resistant to acid or alkali attacks?
- Insulating fire bricks are generally resistant to acid attacks but may not be highly resistant to alkali attacks.
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Refractory Mullite Insulating Refractory Brick JM 29
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 20 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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