What are the advantages of using alumina bubble bricks?

Alumina bubble bricks are a type of high-performance lightweight refractory bricks. Their advantages are: low density, good strength, stability, material saving, and long service life.

Alumina bubble bricks significantly reduce the overall weight of the kiln, lower the base load of the furnace, especially for the furnace lining parts with load-bearing requirements. Moreover, its weight advantage helps to reduce heat dissipation, which can save 15-30% of gas consumption.

Currently, in the same lining temperature conditions on the market, if heavy-duty bricks are used as the working layer, an additional layer of lightweight bricks is required as an insulation layer. If alumina bubble bricks are used, there is no need for insulation layer treatment. In addition to saving the amount of refractory lining materials, it can also save 80% of lightweight insulation bricks. And the special particle grade of the alumina hollow balls can withstand certain loads and be subject to airflow erosion.

Alumina bubble bricks are a kind of lightweight refractory material with excellent high-temperature resistance and energy-saving properties. They are suitable for use in various atmospheres of furnace linings, especially in high-temperature kilns operating at 1800℃. The hollow balls can also be made into high-temperature casting materials, thermal insulation fillers, and can be directly exposed to flames during use. Currently, the volume density of heavy refractory bricks used in high-temperature materials is 2.6-3.0g/cm, while the specific gravity of alumina hollow balls bricks is only 1.1-1.5g/cm². For the same volume, using alumina hollow balls bricks can reduce the weight by 1.1-1.9 tons, which can greatly optimize the furnace structure and reduce the weight of the furnace body.

The core value of Alumina bubble bricks is to perfectly combine the advantages of high-temperature resistance, lightweight, and efficient heat insulation. It is conducive to energy saving and consumption reduction in high-temperature industrial kilns, lightweight development, and can improve the uniformity and stability of the furnace lining temperature.