• Alumuna Hollow Ball Brick System 1
Alumuna Hollow Ball Brick

Alumuna Hollow Ball Brick

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Specifications

1. High temperature resistance.
2. Good thermal insulation.
3. Professional manufacturer.

Alumina hollow ball brick, Alumina bubble brick , Alumina hollow sphere brick , Hollow alumina sphere bricks  

Alumina hollow ball brick used the alumina hollow ball,corundum powder,and calcined powders mixed at definite proportion as raw material. After mixing, drying, forming, firing at high temperature shuttle kiln made.

Physical and chemical index:

Item

ZYL-84

ZYL-90

ZYA-1.2

ZYA-1.5

ZYA-1.7

Al2O3 %

84

90

98.5

98.5

98.5

Fe2O3 %

0.8

0.5

0.3

0.3

0.3

SiO2 %

15

9

1.0

1.0

1.0

Bulk density, g/m3,

1.5

1.5

1.2

1.5

1.7

Porosity,%,

58

60

62

60

58

CCS,Mpa,

16

15

3

12

15

Thermal conductivity, 1000°C,( W/m.k )

1.2

1.15

0.95

1.05

1.15

0.1Mpa RUL,°C  

1650

1700

1700

1700

1700

Refractoriness,°C  

1800

1800

1800

1800

1800

Characteristic:

1. High temperature resistance.

2. Low thermal conductivity.

3. Good thermal insulation.

4. High strength.

5. Can direct contact with flame.

6. Good chemical stability (acid-base erosion resistance ).

7. Low bulk density (lighter than the same kind of material ,thin kiln wall, low cost ) .

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:Are insulating fire bricks suitable for insulation in petrochemical plants?
Yes, insulating fire bricks are suitable for insulation in petrochemical plants. These bricks are made from lightweight refractory materials and have excellent thermal insulation properties. They can withstand high temperatures and provide insulation against heat transfer, making them ideal for use in petrochemical plants where insulation is crucial for safety and energy efficiency.
Q:Can insulating fire bricks be used in the construction of combustion flues?
Insulating fire bricks are indeed suitable for the construction of combustion flues. Their high temperature resistance makes them perfect for environments that require heat resistance. Combustion flues face extreme heat and gases produced during combustion, but insulating fire bricks can safeguard the flue structure from intense heat and prevent heat loss. Furthermore, these bricks have low thermal conductivity, which effectively insulates and retains heat within the flue. As a result, the combustion process becomes more efficient, reducing energy waste. Ultimately, incorporating insulating fire bricks into the construction of combustion flues can enhance the safety, efficiency, and durability of the flue system.
Q:Can insulating fire bricks be used in the construction of brick ovens?
Brick ovens can indeed utilize insulating fire bricks. These specialized bricks possess exceptional thermal insulation characteristics, which make them highly suitable for applications that require efficient heat retention, such as brick ovens. Crafted from lightweight refractory materials, these bricks exhibit a lower density compared to standard clay bricks, thereby minimizing heat loss and enhancing energy efficiency. When constructing a brick oven, it is crucial to contemplate the insulation layer responsible for preserving and evenly disseminating heat throughout the oven. Insulating fire bricks can be employed to create this insulation layer, typically positioned between the inner cooking chamber and the outer oven layer. By utilizing these bricks, heat transfer to the outer layer is minimized, preventing excessive heat dissipation and ensuring the oven attains and maintains the desired high temperatures essential for baking or cooking. Apart from their impressive thermal insulation properties, insulating fire bricks also exhibit remarkable resistance to thermal shock. This signifies their ability to endure abrupt temperature changes without cracking or fracturing. This quality is particularly valuable in brick ovens, as they frequently encounter significant temperature fluctuations during the baking process. To sum up, insulating fire bricks are a fitting and highly recommended choice for constructing brick ovens due to their thermal insulation properties, lightweight composition, and resilience to thermal shock. By utilizing these bricks, a well-insulated and efficient oven can be created, capable of achieving and sustaining high temperatures for optimal baking or cooking outcomes.
Q:Can insulating fire bricks be used as a backup insulation in refractory linings?
Yes, insulating fire bricks can be used as a backup insulation in refractory linings. They are designed to withstand high temperatures and provide excellent thermal insulation properties, making them suitable for this purpose.
Q:Can insulating fire bricks be used in metal smelting furnaces?
Yes, insulating fire bricks can be used in metal smelting furnaces. Insulating fire bricks are designed to have low thermal conductivity, which means they can effectively retain heat and prevent heat loss from the furnace. This makes them ideal for use in metal smelting furnaces, where high temperatures need to be maintained for extended periods of time. Additionally, insulating fire bricks are resistant to thermal shock and can withstand the harsh conditions and rapid temperature changes that occur during metal smelting processes. They are also lightweight, making them easier to handle and install in the furnace. Overall, insulating fire bricks are a suitable choice for use in metal smelting furnaces to improve energy efficiency and increase the lifespan of the furnace.
Q:Can insulating fire bricks be used in the construction of heat exchangers?
Yes, insulating fire bricks can be used in the construction of heat exchangers. These bricks are designed to withstand high temperatures and have excellent insulating properties, making them suitable for heat exchanger applications where heat retention and insulation are important.
Q:Are insulating fire bricks resistant to molten metals?
Yes, insulating fire bricks are generally resistant to molten metals. Insulating fire bricks are made from refractory materials that have high melting points and excellent thermal insulation properties. This makes them suitable for applications where they come into contact with high temperatures, including molten metals. The insulating properties of these bricks help to minimize heat transfer, preventing the heat from the molten metal from being conducted through the brick. Additionally, the refractory materials used in these bricks have low thermal expansion, which allows them to withstand thermal shock that can occur when molten metals come into contact with the bricks. However, it is important to note that the specific resistance of insulating fire bricks to molten metals can depend on factors such as the type of metal, temperature, and duration of exposure. Therefore, it is recommended to consult with the manufacturer or a professional to ensure that the insulating fire bricks are suitable for the specific application involving molten metals.
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.
Q:What is a heat insulating brick?
You can go to the construction site to see if there are grey, hollowed out bricks, basically.

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