Refractory Mullite Insulating Fire Brick GJM30
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 100000 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
CMAX insulating firebricks can be used as a hot face lining directly exposed to the heat or as a backup insulation layer in iron and steel mills, non-ferrous foundries, petrochemical, ceramic, glass.
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 | --- |
- Q:Why does the water drop first and then rise when the boiler fires?
- This is the reason for the zero water level gauge line below the center line of the drum. Under normal conditions for water and evaporation is balanced, after the fire, reduce the amount of steam water mixture into the drum in the evaporation decreased rapidly, reduce the volume of water bubbles, sudden contraction, drum water level decreased rapidly. But not to water change or increase (automatic), water balance is broken, the water level will rise rapidly.
- Q:Are insulating fire bricks suitable for use in glass melting furnaces?
- Insulating fire bricks can be suitable for use in glass melting furnaces, depending on the specific requirements of the furnace and the type of glass being melted. Insulating fire bricks are made from lightweight materials with low thermal conductivity, which makes them effective at retaining heat and reducing energy loss in the furnace. This can help improve the energy efficiency of the furnace and reduce operating costs. However, it is important to consider the temperature and atmosphere inside the glass melting furnace when choosing the type of insulating fire bricks. Glass melting furnaces operate at extremely high temperatures, often exceeding 1500°C (2732°F). Some insulating fire bricks may not be able to withstand such high temperatures and could degrade or even melt under these conditions. Additionally, the atmosphere inside the glass melting furnace can have an impact on the suitability of the insulating fire bricks. Some types of insulating fire bricks may react with certain gases or chemicals present in the furnace atmosphere, leading to degradation or contamination of the glass being melted. Therefore, it is crucial to select insulating fire bricks that are compatible with the specific atmosphere and conditions inside the glass melting furnace. In summary, insulating fire bricks can be suitable for use in glass melting furnaces, but careful consideration must be given to their temperature resistance and compatibility with the furnace atmosphere. Consulting with experts or suppliers who specialize in refractory materials for glass melting furnaces can help ensure the appropriate selection of insulating fire bricks for optimal furnace performance and glass quality.
- Q:Can insulating fire bricks be used for insulation in heat recovery systems?
- Indeed, insulating fire bricks have the capability to serve as insulation within heat recovery systems. These bricks are specially crafted to endure elevated temperatures and deliver efficient thermal insulation. By possessing low thermal conductivity, they possess the ability to reduce heat dissipation and enhance heat recovery within a system. Consequently, they are frequently implemented in diverse industrial settings, including kilns, furnaces, and ovens, where temperature regulation and energy efficiency are paramount. Therefore, these bricks present a viable option for insulating heat recovery systems, facilitating the optimization of waste heat recovery and utilization.
- Q:How do insulating fire bricks affect the overall energy consumption of a building?
- The utilization of insulating fire bricks can have a significant positive impact on a building's overall energy consumption. These bricks are specifically engineered to possess high thermal resistance, which effectively reduces the transfer of heat between the building's interior and exterior. By incorporating insulating fire bricks into the construction of walls, floors, and ceilings, the building's insulation becomes greatly enhanced, resulting in decreased heat loss during colder months and reduced heat gain during hotter months. This improved insulation fosters a more comfortable indoor temperature, thereby reducing the need for excessive heating or cooling. When a building is adequately insulated with fire bricks, the HVAC system experiences decreased strain in maintaining the desired temperature, leading to lower energy consumption and subsequently reducing utility bills. Moreover, the diminished energy demand also contributes positively to the environment by lowering greenhouse gas emissions associated with energy production. Apart from their commendable thermal insulation properties, insulating fire bricks also possess outstanding fire resistance. This feature enhances the building's safety by limiting the spread of fires and providing occupants with additional time to evacuate. Consequently, this fire resistance potential may lead to reduced insurance costs for the building. In summary, insulating fire bricks play a pivotal role in diminishing energy consumption and enhancing energy efficiency in buildings. They not only deliver cost savings to building owners but also contribute to the creation of a more sustainable and environmentally friendly setting.
- Q:Can insulating fire bricks be used for insulation in smelters?
- Yes, insulating fire bricks can be used for insulation in smelters. Insulating fire bricks are specifically designed to withstand high temperatures and provide excellent thermal insulation. They are made from lightweight refractory materials that have low thermal conductivity, allowing them to effectively retain heat and minimize heat loss. This makes them ideal for use in smelters, where maintaining high temperatures is crucial for efficient metal smelting processes. Additionally, insulating fire bricks are resistant to chemical attack and mechanical stress, ensuring their durability and suitability for use in harsh smelting environments.
- Q:Can insulating fire bricks be used as a lining for incinerators?
- Indeed, insulating fire bricks have the capability to serve as a lining in incinerators. Their design is specifically engineered to endure extreme temperatures while offering exceptional thermal insulation. Comprised of lightweight components like ceramic fibers, refractory minerals, and binders, these bricks have the ability to retain heat and hinder heat transfer to the external surface. When it comes to incinerators, where elevated temperatures are generated to effectively incinerate waste materials, insulating fire bricks play a crucial role in sustaining the desired internal temperature of the unit. They can be utilized to cover the walls, floor, and ceiling of the incinerator, effectively confining the heat within the chamber and preventing its escape into the surrounding environment. Additionally, the insulation properties of these bricks contribute to energy efficiency by minimizing heat loss. Consequently, this can lead to reduced fuel consumption and operational expenses. Nevertheless, it is essential to acknowledge that insulating fire bricks might not be suitable for all types of incinerators. Depending on the specific requirements and circumstances of the incinerator, alternative refractory materials like dense fire bricks or castable refractories may be more suitable. It is strongly advised to consult with experts or manufacturers to determine the most appropriate lining material for a particular incinerator.
- Q:Do insulating fire bricks emit any toxic fumes when heated?
- Insulating fire bricks, also known as refractory bricks, are designed to withstand high temperatures and are commonly used in applications such as furnaces and kilns. These bricks are made of materials that have a low thermal conductivity, meaning they do not transfer heat easily. When heated, insulating fire bricks do not emit any toxic fumes. This is because they are typically made from non-toxic materials such as clay or silica. These materials are chemically stable and do not release any harmful gases or substances when exposed to high temperatures. It is important to note that while insulating fire bricks themselves do not emit toxic fumes, the substances being heated inside the furnace or kiln may produce fumes or gases that could be hazardous to health. It is essential to properly ventilate the area and follow safety guidelines when working with any materials that may release toxic fumes during the heating process. In summary, insulating fire bricks do not emit any toxic fumes when heated as they are made from non-toxic materials. However, it is crucial to ensure proper ventilation and follow safety precautions when working with any materials that may release hazardous fumes.
- Q:Are insulating fire bricks resistant to insect infestations?
- No, insulating fire bricks are not specifically designed to be resistant to insect infestations.
- Q:Can insulating fire bricks be used in the construction of heat storage systems?
- Yes, insulating fire bricks can be used in the construction of heat storage systems. Insulating fire bricks are designed to have low thermal conductivity, which means they are capable of trapping and storing heat effectively. These bricks are made from materials such as fire clay, which have excellent insulation properties. By using insulating fire bricks, heat loss can be minimized, allowing for efficient heat storage and retention in heat storage systems. The bricks can be used to build the walls and lining of the heat storage system, ensuring that the stored heat is not dissipated to the surroundings. Additionally, insulating fire bricks are lightweight and easy to handle, making them a convenient choice for constructing heat storage systems. Overall, the use of insulating fire bricks in the construction of heat storage systems enhances their thermal efficiency and contributes to more effective heat management.
- Q:Can insulating fire bricks be cut or shaped to fit specific dimensions?
- Insulating fire bricks possess the capability to be tailored or molded according to particular dimensions. Composed of lightweight refractory materials, these bricks are purposely designed to facilitate easy cutting or shaping to fulfill specific necessities. A saw, knife, or alternative cutting tools are suitable for cutting them, while grinding or sanding can be employed to shape them. Such adaptability allows for meticulous customization of the bricks, rendering them a versatile choice for a myriad of applications, including lining furnaces, kilns, and other environments with elevated temperatures.
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Refractory Mullite Insulating Fire Brick GJM30
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 100000 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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