Dec. 16, 2022
Insulated refractory bricks are a special type of brick that can withstand high temperatures and act as a heat insulator. Insulated refractory bricks are used for lining fireplaces, fireboxes, furnaces and kilns. Sometimes referred to as 'refractory bricks', they are designed to withstand temperatures of up to 3,200⁰F while actually conducting very little heat to provide a higher level of energy efficiency.
Insulating bricks are used in furnaces and kilns because of their high thermal conductivity. In addition, these refractory bricks are more suitable for high temperature settings as less energy is used.
As a rule, refractory insulating bricks have many excellent qualities. However, choosing the best refractory bricks for refractory applications can be difficult.
Therefore, we at Yutong Import and Export Corporation offer a comprehensive guide to choosing the right refractory bricks.
Mullite Insulating Bricks
Basically, a refractory brick is a lightweight, insulating refractory material. In addition, its low bulk density reduces heat loss behind the refractory furnace lining. As a result, refractory insulating bricks are ideal for many industries. Especially those requiring less energy but with high performance insulation.
Yes, because they are a refractory brick that can withstand extremely high temperatures. Because they act as an insulator, refractory bricks are suitable for lining furnaces, chimneys, kilns and boiler refractories.
In addition, these bricks can withstand temperatures of up to 1400°C, but only partially conduct heat. As a result, it produces higher levels of energy efficiency, which benefits many heavy industries.
High Insulation Value - BNZ IFB's low weight and high insulation value allows for thinner furnace walls, increased efficiency and reduced operating costs.
Alumina Insulating Bricks
Strength - The high compressive strength of the IFB allows for a self-supporting structure at high temperatures. the IFB is compatible with dense refractory bricks, adding strength to the overall structure.
Low heat storage - low heat storage compared to dense bricks means lower fuel costs and faster heating of cyclic running heating equipment.
High purity - BNZ IFBs have a low content of impurities such as iron, which can adversely affect refractory performance in many applications. They are used in many furnaces with controlled atmospheres.
Precise dimensions - Because BNZ insulated refractory bricks are machined to precise dimensions, layers can be laid quickly and easily, resulting in a stronger, tighter refractory lining and thus less heat loss at the joints.
Metallurgy: blast furnaces, hot blast furnaces, heating furnaces, etc.
Petrochemicals: ethylene cracking furnaces, primary conversion furnaces, heating furnaces, hydrogen production furnaces, etc.
Ceramics: roller kilns, pusher kilns, etc.
Glass: glass kiln heat storage chamber, etc.
Carbon: carbon roasting furnace, etc.
Low thermal conductivity: The higher the porosity, the better the insulation and energy savings
High compressive strength: Ability to withstand high thermal states and good volumetric stability
Low heat storage: Stores low levels of heat but absorbs more heat, thus saving more energy.
High purity: Low levels of impurities such as iron, alkali and metals
Precise sizing; Customised dimensions, e.g. machined, cut and ground shapes.
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