Mullite poly light insulation brick is a new type of high-quality heat insulation refractory insulation material containing 50% to 85% of AL2O3, with mullite as the dominant crystal phase and fusion phase. Because mullite has high-quality high-temperature physical properties and chemical reliability. Mullite-based lightweight bricks have high-quality properties such as high high-temperature structural strength, low high-temperature stress relaxation rate, small linear expansion coefficient, strong chemical adhesion resistance, and good thermal shock resistance. It can be used as the lining of the kiln excavation face directly touching the flame, which can significantly improve the environmental protection and energy-saving effect of the kiln.
Insulation characteristics of mullite poly light insulation brick
The characteristics of mullite insulation brick. 1. Low heat transfer rate, with good thermal insulation effect. 2. Melt on low heat. Due to the low heat transfer rate, the mullite series lightweight concrete insulation bricks store very little energy, and the energy-saving effect is remarkable in intermittent operations. 3. Low water content in residues, with extremely low water content in compounds such as iron and alkaline earth metals. Therefore, the refractoriness is high. The higher aluminum content makes it maintain good properties in the recovery atmosphere. 4. High compressive strength in the thermal pressure test. 5. Accurate appearance and specification, speed up wall building and reduce the demand for refractory mud. The compressive strength and reliability of the infill wall are ensured, which in turn increases the service life of the lining. 6. It can be produced and processed into customized sizes and shapes to reduce the number of bricks and joints.
The high-temperature structure of mullite lightweight concrete insulation bricks has high compressive strength, good volume reliability, and high thermal shock reliability. High-quality performance indicators, which in turn increase the operating life of the kiln.
Mullite poly light insulation bricks are manufactured from high-purity mullite raw materials, with white color, high application temperature, small heat transfer coefficient, and low refiring line change rate.
Mullite lightweight concrete insulation brick can reduce the volume of insulation equipment to fill the wall, reduce its weight and shorten the heating time. Ensure uniform temperature control, reduce heat damage, save resources, improve operating conditions, and increase productivity.
Mullite lightweight concrete insulation bricks are mainly used for hot blast stove roofs, ironmaking blast furnace bodies, and bottoms, laminated glass melting furnace heat storage rooms, porcelain calcining kilns, crude oil cracking system software blind area furnace charge, etc.
Mullite poly light insulation brick is an insulation refractory product commonly used in the insulation layer of high-temperature industrial kilns. Its main function is to keep warm and reduce the heat outflow inside the kiln. Insulation bricks are usually not exposed to flames. Some high-quality mullite poly-light bricks can be applied to the working layer and can directly contact the flame. The heat transfer coefficient of insulation bricks is usually 0.2-0.4 (average temperature 350±25°C) w/m.k. It can be calculated that the thermal insulation properties of mullite thermal insulation bricks are much better. The refractoriness of insulation bricks is around 1400 degrees. Insulation bricks are generally light insulation materials, and the density is generally 0.8-1.2g/cm3.
Rongsheng insulation brick manufacturer
Rongsheng Insulation Refractory Materials Manufacturer is a powerful manufacturer and seller of refractory bricks. Our refractory brick products, and insulation brick products, are high quality and low price. And we can customize refractory lining solutions according to the actual production needs of customers’ industrial furnaces. Our new type of thermal insulation material product has a small bulk density and low thermal conductivity. It has good thermal insulation performance. It can effectively reduce the weight of the furnace body and the temperature of the outer wall of the industrial furnace. Contact us to get a detailed refractory design plan for the insulation layer for free.
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