Lightweight mullite insulation brick is a kind of insulation brick, which is an insulating refractory brick made of mullite as aggregate. Mullite insulation bricks are white, can be directly exposed to flames, and have high refractoriness. Mainly used in hot blast furnace tops, blast furnace shafts, and bottoms, glass melting furnace regenerators, ceramic sintering kilns, dead-end furnace linings in petroleum cracking systems, etc.
Lightweight mullite insulation bricks
The dimensions of conventional lightweight mullite insulation bricks are 230 x 114 x 65mm. Common models of lightweight mullite insulation bricks include JM23, JM26, JM28, and JM30. The main difference between them is the content of aluminum oxide and iron oxide. Different contents can withstand different refractory temperatures, thermal conductivity, and thermal expansion rates.
Characteristics of low-iron JM23 lightweight mullite insulation bricks
- Low thermal conductivity and good thermal insulation effect.
- Low thermal melt. Due to low thermal conductivity, mullite series lightweight insulation bricks store very little heat energy. The energy-saving effect is obvious in intermittent operation.
- Low impurity content and very low oxide content such as iron metal. Therefore, the fire resistance is high. The higher aluminum content allows it to maintain good performance under a reduced atmosphere.
- High hot compressive strength.
- The appearance dimensions are precise, speeding up the masonry work and reducing the usage of refractory mud. The strength and stability of the masonry are ensured, thereby extending the life of the lining.
- It can be processed into special shapes to reduce the number of bricks and joints.
RS refractory material manufacturer can provide lightweight mullite insulation bricks, with standard sizes and customized sizes. Low iron JM model, contact us for a free quote and sample.
Lightweight mullite insulation bricks for industrial kilns
Lightweight mullite insulation bricks for industrial kilns are a widely used energy-saving material. Has the following characteristics. Lightweight. The density of mullite insulation bricks is less than or equal to 1000 kg/cubic meter. It is much lighter than traditional stone or metal thermal insulation materials, which can reduce the burden and weight of the kiln. Insulating properties. Mullite insulation bricks have high porosity and large porosity, which can effectively improve thermal insulation performance and reduce heat loss and transmission. Durability. Mullite insulation bricks have very good durability due to their porous structure. Its stability and durability can be guaranteed even in high-temperature environments. Easy to process. Mullite insulation bricks can be mechanically crushed or pressed into different shapes and sizes for easy use and processing. In industrial kilns, mullite insulation bricks are often used for thermal insulation and preventing heat loss. This material can effectively reduce the energy consumption and cost of the kiln, and improve production efficiency and safety.
Low-iron JM23 lightweight mullite insulation brick manufacturer and RS refractory insulation brick manufacturer produce mullite lightweight insulation bricks with industrial Al₂O₃ powder, clay, well-sintered bauxite, and kyanite as the main raw materials. Add wood chips (1mm screen) and polystyrene balls (diameter 0.2~0.5mm) to prepare lightweight bricks. It has the characteristics of high-temperature strength, low porosity, and corrosion resistance. Widely used in high-temperature industrial kiln linings.
Mullite insulation brick is a new type of thermal insulation refractory material, low iron JM23 lightweight mullite insulation brick. According to the difference in density, it can be divided into lightweight mullite insulation bricks and corundum mullite bricks (also called heavy mullite insulation bricks). Mullite insulation bricks are divided into JM23, JM26, JM28, and JM30 according to their grades. Mullite insulation bricks are divided into 1350 mullite insulation bricks, 1450 mullite insulation bricks, 1550 mullite insulation bricks, etc. according to different use temperatures. Moreover, 1550 mullite bricks can be directly exposed to flames and have the characteristics of high-temperature resistance, small thermal conductivity, and significant energy-saving effects.
Mullite insulation brick product price
- The price of mullite insulation brick JM23 is 2,600 yuan/ton, and the use temperature is 1,350°C.
- The price of mullite insulation brick JM26 is 3,200 yuan/ton, and the use temperature is 1,450°C.
- The price of mullite insulation brick JM28 is 4200 yuan/ton, and the use temperature is 1550℃.
- The price of mullite insulation brick JM30 is 4,800 yuan/ton, and the use temperature is 1,600°C.
JM23 lightweight mullite insulation bricks, the body density of lightweight mullite insulation bricks is 0.6, 0.8, 1.0, 1.2g/cm3. Mullite lightweight thermal insulation bricks are suitable for high air temperature metallurgical hot blast furnaces, molten steel impactors, slag lines, the roof of steelmaking electric arc furnaces, the forehearth of glass melting furnaces, regenerator arches, and superstructures. The lining of ceramic sintering kilns, ceramic roller kilns, tunnel kilns, electric porcelain drawer kilns, dead-end furnaces of petroleum cracking systems, glass crucible kilns and various electric furnaces. The walls of the clarifier can be in direct contact with flames.
To learn more about RS low-iron JM23 lightweight mullite insulation bricks, please contact us.
