Cordierite-mullite Refractory Brick

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Specifications

Cordierite-mullite brick
1. low thermal expansion coefficient,
2. excellent stability of thermal shocking

Alumina-Silica Refractory Series Products

Cordierite-mullite brick is of low thermal expansion coefficient, excellent stability of thermal shocking, it is used in assembly brick for hot blast stove.
Sintered mullite brick mineral component is mullite phase. It has the advantage of high temperature structural strength, strong resistance to chemical corrosion. It is used in the lining of high temperature kiln.
Silimanite bricks possesses the better refractoriness temperature under load and the good stability of thermal shocking. It is mainly used in the blast furnace, wind pipe of the blast heating cupola, the lime kiln, the discharging channel and cover board of the glass melting kiln.

Physical and chemical index :

			Sillimanite Bricks	Cordierite brick	Corundum-Mullite Brick		Cordierite-Mullite Brick
	M-68	M-72	GCS	JQS	AM-75	AM-80	JM
Al₂O₃%	≥68	72	≥55	55±5	≥75	≥80	≥50
Fe₂O₃ %	≤1.5	≤1.5	≤1.5	≤1.5			≤2
MgO %				2.0			1.73~3
SiO₂ %							≤45
Apparent Porosity %	≤21	≤19	≤17	≤25	≤17	≤17	≤23
Bulk Density g/cm³	≥2.45	≥2.50	≥2.45	≥2.30	≥2.55	≥2.60	≥2.30
Cold Crushing Strength Mpa	≥50	≥60	≥55	≥40	≥70	≥70	≥70
Modulus of Rupture Mpa					≥15	≥15
0.2Mpa Refractoriness Under Load T_0.6	≥1580	≥1600	≥1550 (T₂)	≥1400	≥1680	≥1700
Reheat liner change 2h				1450°C ±0.2
Thermal Shock Resistances 100°C water cycles			≥15				≥100
20-1000°C Thermal Expansich 10^-6/°C	4.5-4.9

Q: What's the price of lightweight refractory bricks?: Insulation bricks according to size, material, performance of different prices are not the same, the same products in different regions also vary slightly

Q: What is the typical weight of an insulating fire brick?: The weight of an insulating fire brick can differ based on its specific type and manufacturer. On average, it falls within the range of 2.5 to 3.5 pounds (1.1 to 1.6 kilograms). It's worth noting that this weight estimation applies to a standard-sized brick measuring 9 x 4.5 x 2.5 inches (22.9 x 11.4 x 6.4 centimeters). Slight variations in weight may occur due to varying densities and compositions of these bricks. Therefore, it is advisable to consult the manufacturer's specifications for precise information.

Q: Can insulating fire bricks be used for insulation in chemical plants?: Indeed, insulation in chemical plants can be achieved with the utilization of insulating fire bricks. These bricks are crafted from lightweight materials possessing exceptional insulating characteristics, such as ceramic fibers or refractory materials. Their composition renders them capable of enduring elevated temperatures, thus rendering them suitable for deployment in environments where chemical procedures generate heat. Within chemical plants, insulating fire bricks can be employed in a multitude of applications, including the lining of furnaces, reactors, kilns, and other equipment. By virtue of their remarkable insulating properties, they aid in minimizing heat loss, conserving energy, and maintaining optimal operating temperatures, thereby ensuring the utmost efficiency and safety in the chemical processes.

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 ceramic tile kilns?: Yes, insulating fire bricks can be used in the construction of ceramic tile kilns. Insulating fire bricks are specifically designed to withstand high temperatures and provide excellent insulation properties. They have low thermal conductivity, which means they help to retain heat within the kiln and prevent it from escaping, resulting in more efficient and effective firing of ceramic tiles. Additionally, their lightweight nature makes them easy to handle and install in the kiln structure. Overall, using insulating fire bricks in the construction of ceramic tile kilns can help improve energy efficiency, reduce heat loss, and ensure consistent and controlled firing temperatures.

Q: Can insulating fire bricks be used in the construction of thermal insulation floors?: Yes, insulating fire bricks can be used in the construction of thermal insulation floors. Insulating fire bricks are specially designed to have low thermal conductivity, which means they can effectively prevent the transfer of heat. This makes them an excellent choice for thermal insulation applications, including floors. By using insulating fire bricks in the construction of thermal insulation floors, the heat loss from the floor can be significantly reduced, leading to improved energy efficiency and cost savings. Additionally, insulating fire bricks are lightweight and easy to install, making them a practical choice for construction projects. Overall, insulating fire bricks are a suitable and effective option for incorporating thermal insulation into floors.

Q: Can insulating fire bricks be used for fireplace lining?: Yes, insulating fire bricks can be used for fireplace lining. These bricks are designed to withstand high temperatures and provide excellent insulation, making them suitable for lining the inside of a fireplace. They help to retain heat and improve the efficiency of the fireplace while protecting the surrounding structure from excessive heat.

Q: Can insulating fire bricks be used in the construction of heat recovery systems?: Yes, insulating fire bricks can be used in the construction of heat recovery systems. Insulating fire bricks are designed to withstand high temperatures and provide excellent thermal insulation, making them an ideal choice for heat recovery systems. These bricks are made from lightweight materials, such as ceramic fibers or refractory materials, which have low thermal conductivity. This property allows them to effectively trap and retain heat, preventing it from escaping the system and maximizing energy efficiency. Additionally, insulating fire bricks are resistant to thermal shock, meaning they can withstand rapid temperature changes without cracking or breaking. This makes them suitable for the varying heat conditions often found in heat recovery systems. Overall, using insulating fire bricks in the construction of heat recovery systems can help improve their performance and efficiency by minimizing heat loss and optimizing energy recovery.

Q: Can insulating fire bricks be used in biomass power plants?: Insulating fire bricks possess the capability to be utilized within biomass power plants. Specifically designed to endure extreme temperatures and offer insulation, these fire bricks are well-suited for an array of applications in high-temperature settings, including biomass power plants. These power plants generate electricity by incinerating biomass materials such as wood chips, agricultural waste, and other organic substances. The usage of insulating fire bricks can span across multiple areas within a biomass power plant. Primarily, they can be employed to line the combustion chamber where the biomass is burned, releasing heat. The insulating properties of these bricks aid in containing the heat within the combustion chamber, thereby enhancing the efficiency of the biomass combustion process. Furthermore, insulating fire bricks serve a purpose in the construction of the plant's boiler, responsible for converting the heat produced by the biomass incineration into steam. The bricks can be utilized to line the walls and roof of the boiler, delivering thermal insulation and preventing heat loss. This insulation serves to maintain high temperatures inside the boiler, which is vital for steam generation and subsequent power production. Moreover, the construction of the chimney or flue system of biomass power plants can also incorporate insulating fire bricks. These bricks can be utilized to line the interior of the chimney, ensuring that the high temperatures and corrosive gases resulting from biomass combustion are safely contained and directed out of the plant. In summary, insulating fire bricks are an exceptional choice for biomass power plants due to their ability to withstand high temperatures and provide thermal insulation. Their utilization in the combustion chamber, boiler, and chimney systems contributes to the improvement of efficiency and safety in biomass power generation.

Q: Can insulating fire bricks be used in the construction of lime production kilns?: Yes, insulating fire bricks can be used in the construction of lime production kilns. Insulating fire bricks are designed to have excellent thermal insulation properties, which makes them suitable for high-temperature applications like lime production kilns. They can help in maintaining the desired temperature inside the kilns and reducing heat loss, enhancing the efficiency and productivity of the lime production process.

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