---

 

Rongsheng Alumina hollow ball brick, the English name of which is Alumina Bubble Brick. It is made of alumina hollow ball and alumina powder as the main raw materials, combined with other binders, and fired at a high temperature of 1750℃. Alumina Bubble Ball Brick is a kind of ultra-high temperature material energy-saving and thermal insulation material. Rongsheng Alumina Bubble Ball Brick for Sale. Factory price, direct sales, fast delivery, and quality guaranteed. Contact Rongsheng for more detailed information.

 

Introduction of Alumina Bubble Ball Bricks

 

Name:	Alumina Bubble Brick
Using Temperature:	1750 ℃	Features:	Save materials and energy
Main Raw Material:	Alumina hollow ball	Field:	Engineering Technology
Material Properties:	Ultra-high temperature, energy saving, heat preservation	Discipline:	Metallurgical Engineering

 

The Main Raw Materials of Alumina Bubble Ball Bricks

 

Hollow Alumina Ball

Hollow alumina ball is a new type of high-temperature insulation material. It is made of industrial alumina by melting and blowing in an electric furnace, and the crystal form is a-Al2O3 microcrystals. With hollow alumina balls as the main body, various shapes of products can be made, with a maximum use temperature of 1800℃. The mechanical strength of hollow alumina ball bricks is high, which is several times that of general lightweight bricks, while the volume density is only half of that of corundum products. It is widely used in high-temperature and ultra-high-temperature kilns such as petrochemical gasification furnaces, carbon black industrial reactors, and metallurgical induction furnaces. And it has achieved very satisfactory energy-saving effects.

α-Alumina Powder

Rongsheng manufacturers use high-quality industrial alumina as raw materials when producing hollow alumina ball bricks. α-alumina powder is produced by a new high-temperature downdraft kiln and a scientific calcination process. It is manually selected, clearly graded, contains few impurities, has a high conversion rate, a stable shrinkage rate, and good consistency.

 

Physical and Chemical Indicators of Alumina Hollow Ball Bricks

 

Physical and chemical indicators of Alumina Bubble Ball Bricks in Rongsheng
Items	LQZ99-1.4	LQZ99-1.6	LQZ99-1.8	LQZ95-1.4	LQZ95-1.6	LQZ95-1.8	LQZ90-1.4	LQZ90-1.6	LQZ90-1.8
Al2O3  %	≥99			≥95			≥90
SiO2  %	≤0.3			–			–
Fe2O3  %	≤0.2			≤0.2			≤0.2
Bulk Density, g/cm3	1.3~1.5	1.5~1.7	1.7~1.9	1.3~1.5	1.5~1.7	1.7~1.9	1.3~1.5	1.5~1.7	1.7~1.9
CCS, MPa	≥6	≥10	≥12	≥8	≥12	≥16	≥10	≥14	≥18
Thermal Conductivity, W/(m·K) Hot Side 1000℃	≤0.9	≤1.1	≤1.2	≤0.9	≤1.1	≤1.2	≤0.9	≤1.1	≤1.2
PLC, %  1600℃×3h	±0.3			±0.3			±0.3

 

Advantages of Alumina Bubble Ball Bricks

 

Alumina hollow ball bricks have obvious effects on reducing the weight of the furnace body, transforming the structure, saving materials and saving energy.

1. High operating temperature.

The operating temperature of Rongsheng Alumina Bubble Ball Bricks can reach above 1750℃, with good thermal stability. The reburning line change rate is small and can be used for a longer time.

2. Optimize the lining structure and reduce the weight of the furnace body.

The high-temperature resistant materials used in high-temperature industrial furnaces are now heavy bricks with a volume density of 2.6-3.0g/cm3. The volume density of alumina hollow ball bricks is only 1.1~1.5g/cm3. For the same cubic meter volume, the use of Alumina Bubble Ball Bricks can reduce the weight of the furnace body by 1.1-1.9 tons.

3. Save materials.

To achieve the same operating temperature, the cost of using heavy bricks is equivalent to the price of alumina hollow ball bricks. Moreover, if heavy brick lining is used, a certain amount of insulation layer refractory materials are also required. If Alumina Bubble Ball Bricks are used as furnace lining materials, 1.1-1.9 tons of heavy bricks can be saved per cubic meter, and 80% of refractory insulation materials can be saved.

4. Save energy.

Alumina hollow balls have obvious insulation properties and low thermal conductivity, which can play a good insulation effect. Reduce heat dissipation and improve thermal efficiency, thereby achieving the purpose of saving energy. The energy-saving effect can reach more than 30%.

 

Application of Alumina Bubble Ball Bricks

 

Alumina hollow balls and their products are lightweight refractory materials with excellent high-temperature resistance and energy saving, which are very stable when used in various atmospheres. Especially for high-temperature kilns at 1800℃. Hollow balls can be used as high-temperature and ultra-high-temperature insulation fillers, lightweight aggregates for high-temperature refractory concrete, high-temperature castables, etc. Alumina Bubble Ball Bricks can be used for high-temperature energy saving (>30%) downdraft kilns, shuttle kilns, molybdenum wire furnaces, tungsten rod furnaces, induction furnaces, nitriding furnaces, etc. By reducing the weight of the furnace body, transforming the structure, saving materials, and saving energy, significant results will be achieved.

 

Rongsheng Lightweight Insulating Refractory Brick Manufacturer

 

Rongsheng Refractory Material Manufacturer is a powerful manufacturer and seller of refractory materials. Rongsheng Manufacturer is committed to providing high-quality refractory lining materials for high-temperature industrial furnaces. In addition, our refractory insulation materials can also help enterprises reduce energy consumption and save production costs. Rongsheng lightweight insulating refractory bricks, including lightweight high alumina bricks, lightweight silica bricks, mullite insulation bricks, Alumina Bubble Ball Bricks, Rongsheng high-strength nano insulation bricks, insulation boards, etc. If you need insulation bricks, alumina bubble ball bricks, lightweight high alumina bricks, or lightweight clay bricks, please contact Rongsheng. Get free samples and quotes.