• Refractory GJM Mullite Insulation Brick B-7 System 1
  • Refractory GJM Mullite Insulation Brick B-7 System 2
  • Refractory GJM Mullite Insulation Brick B-7 System 3
  • Refractory GJM Mullite Insulation Brick B-7 System 4
Refractory GJM Mullite Insulation Brick B-7

Refractory GJM Mullite Insulation Brick B-7

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
10 m.t.
Supply Capability:
1000 m.t./month

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Specifications

mullite insulation brick 
1. Low thermal conductivity 
2.High hot compressive strength 
3.Perfect Energy saving

Refractory GJM Mullite Insulation Brick B-7

Light weight mullite insulation furnace bricks refractory for sale

Advantage

1. Low thermal conductivity 
2.High hot compressive strength 
3.Perfect Energy saving

 Refractory GJM Mullite Insulation Brick B-7

Description:

  Lightweight mullite kiln bricks refractory for sale are made from good quality and superpure raw materials, with strictly classified fillings according to their grades. These fillings can form a uniform pore structure after burnt during the process of manufacture. Each grade of products has unique design to meet different thermal, physical and chomical demands.

Application:Refractory GJM Mullite Insulation Brick B-7

 Mullite insulation  furnace bricks refractory material can be used in linings or heat-insulating materials of the industries, such as, ethylene pyrolysis furnaces, tubular furnaces, reforming furnaces of synthetic ammonia, gas generators and high-temperature shullte kilns, etcRefractory GJM Mullite Insulation Brick B-7

Mullite Insulation  furnace refractory material can be used as working lining, where contact with flames directly. This kind of brick can save the kiln energy very much

Refractory GJM Mullite Insulation Brick B-7

Refractory GJM Mullite Insulation Brick B-7


Refractory GJM Mullite Insulation Brick B-7


Q:Are insulating fire bricks eco-friendly?
Insulating fire bricks can be considered eco-friendly to some extent. These bricks are typically made from natural materials such as clay, shale, and other fire-resistant minerals, which are abundant and readily available. The production process involves firing the bricks at high temperatures, which can be energy-intensive, but modern manufacturing techniques have reduced the environmental impact by using more efficient kilns and recycled materials. Moreover, insulating fire bricks have a long lifespan and can withstand high temperatures, which means they require less frequent replacement compared to other types of bricks. This leads to a reduction in waste generation and resource consumption over time. Additionally, these bricks have excellent thermal insulation properties, which can help reduce energy consumption in various applications. By minimizing heat loss, insulating fire bricks can contribute to energy efficiency and lower carbon emissions in buildings and industrial processes. However, it is important to note that the eco-friendliness of insulating fire bricks also depends on their proper disposal at the end of their lifespan. If they are not recycled or disposed of properly, they can contribute to landfill waste and potential environmental pollution. In conclusion, while insulating fire bricks have certain eco-friendly attributes such as being made from natural materials and their energy-saving properties, their overall environmental impact also relies on responsible manufacturing, use, and disposal practices.
Q:Are insulating fire bricks resistant to hydrofluoric acid?
Yes, insulating fire bricks are resistant to hydrofluoric acid.
Q:Masonry method for boiler refractory brick
Masonry of furnace bottom:(1) the bottom shall be leveled before masonry; when the masonry is made, the walls around the bottom shall be first laid, and the height shall be approximately higher than the surface of the hearth. Then the bottom horizontal line (for example, multi layer masonry, together with the layer line) is marked on the straight wall, and then the bottom can be built.(2) when the bottom is made of multi layer bricks, the masonry shall be carried out by layer by layer, and the upper, lower and the same floor shall be staggered. The long side of the surface brick shall be vertical to the direction of the flow of slag or gas.(3) the high temperature area and the furnace bottom which need to be frequently repaired must leave the expansion gap at the bottom of the furnace and the straight wall, and the asbestos rope or asbestos board will be embedded in the gap.
Q:Are insulating fire bricks resistant to hydrogen sulfide?
Insulating fire bricks are generally not resistant to hydrogen sulfide. Hydrogen sulfide is a highly corrosive gas that can react with many materials, including fire bricks. While fire bricks are designed to withstand high temperatures, they are not specifically designed to resist chemical corrosion. If exposed to hydrogen sulfide, fire bricks may deteriorate over time, leading to potential damage or failure. Therefore, it is recommended to use alternative materials that are specifically designed to resist hydrogen sulfide corrosion in applications where exposure to this gas is expected.
Q:Do insulating fire bricks have a low thermal expansion rate?
Insulating fire bricks are known for their low thermal expansion rate. They are specifically designed to endure high temperatures and thermal shocks, with one of their key features being their ability to retain their shape and dimensions even in extreme heat conditions. These bricks are produced from materials that possess a low coefficient of thermal expansion, which means they undergo minimal expansion and contraction when exposed to temperature changes. This characteristic guarantees the stability of the bricks, preventing them from cracking or breaking due to thermal stress. Moreover, the low thermal expansion rate of insulating fire bricks contributes to improved insulation performance. By minimizing the formation of gaps between the bricks during expansion and contraction, heat loss is reduced and energy efficiency is enhanced.
Q:Can insulating fire bricks be used in the construction of tundishes?
Insulating fire bricks are indeed applicable for tundish construction. They possess exceptional thermal insulation qualities and are lightweight, which makes them perfect for situations that demand heat retention. Tundishes, utilized in the steel industry to regulate molten metal flow, necessitate materials capable of enduring high temperatures while minimizing heat loss. Insulating fire bricks excel in this area, successfully enduring extreme temperatures within tundishes, thereby safeguarding the desired molten metal temperature and preventing heat loss. Moreover, their lightweight nature facilitates uncomplicated handling and installation during tundish construction. In conclusion, insulating fire bricks prove to be a suitable choice for tundish construction due to their thermal insulation qualities and ability to withstand high temperatures.
Q:Are insulating fire bricks resistant to thermal expansion or contraction?
Indeed, insulating fire bricks exhibit a remarkable resistance to thermal expansion and contraction. These bricks are composed of materials possessing minimal thermal conductivity, enabling them to endure elevated temperatures without experiencing substantial expansion or contraction. This characteristic renders them exceptionally well-suited for scenarios necessitating thermal stability and insulation, including kilns, furnaces, and various high-temperature settings.
Q:How do insulating fire bricks provide insulation against heat transfer?
Insulating fire bricks provide insulation against heat transfer through a combination of their composition and structure. These bricks are made from lightweight refractory materials such as clay, alumina, or silica, which have excellent thermal insulating properties. The structure of insulating fire bricks is designed to minimize the transfer of heat. They are typically made with a high proportion of air pockets or voids, which act as insulating barriers against the flow of heat. The voids reduce the density of the bricks, making them lighter and less conductive to heat. Moreover, insulating fire bricks have low thermal conductivity, meaning they are not good conductors of heat. This property is achieved by using materials with low thermal conductivity and by incorporating insulating additives during the manufacturing process. As a result, the bricks are able to resist the transfer of heat from one side to the other. In addition, insulating fire bricks have a high melting point, which allows them to withstand extremely high temperatures without losing their insulating properties. This makes them suitable for applications where heat insulation is needed, such as in kilns, furnaces, and fireplaces. Overall, insulating fire bricks provide insulation against heat transfer by utilizing their lightweight composition, structural design with air pockets, low thermal conductivity, and high melting point. These properties make them effective in minimizing heat flow and maintaining temperature stability in various heating applications.
Q:Do insulating fire bricks have a high heat storage capacity?
Insulating fire bricks possess a remarkable capacity for storing heat. These bricks are engineered to possess minimal thermal conductivity, enabling them to preserve heat for extended durations. Consequently, they are extremely well-suited for scenarios that demand heat retention, such as within furnaces, kilns, and other settings with elevated temperatures. The impressive heat storage capacity of insulating fire bricks facilitates effective heat preservation and dispersion, ultimately enhancing energy efficiency and lessening heat dissipation.
Q:Can insulating fire bricks be recycled or reused?
Insulating fire bricks have the potential to be recycled or reused. These bricks are composed of various materials like alumina, silica, and clay, which can be broken down and utilized in the production of fresh bricks. Recycling involves crushing the bricks into a fine powder and combining it with other raw materials to form new bricks. Additionally, reusing insulating fire bricks is viable in specific applications. If the bricks are still in good condition and undamaged, they can be extracted from one structure and employed in another. This practice decreases waste and conserves resources. In summary, whether through recycling or reusing, insulating fire bricks possess the ability to have a secondary life, contributing to a more sustainable and environmentally-friendly construction industry.

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