Mullite insulation bricks is a kind of high aluminum refractory with mullite as the main crystal phase. We call it mullite light insulation brick. Generally, alumina content ranges from 40% to 70%.In addition to the mineral composition of mullite, the lower alumina also contains a small amount of glass phase and quartzite, mullite insulation brick has the advantage of direct contact with flame, directly used in the lining of high-temperature furnace. This series of refractory insulation brick is a kind of refractory insulation material which is widely used in new industrial kiln and high temperature equipment.
1. Low thermal conductivity, good thermal insulation effect;
2. Due to its low thermal conductivity, mullite insulation brick accumulates little thermal energy and has obvious energy-saving effect in intermittent operation;
3. Low impurity content and very low oxide content, therefore, high fire resistance.And in the atmosphere of high aluminum content, still maintain good performance;
4. High thermal compressive strength, high fire resistance, up to over 1790℃.The starting temperature of load softening is 1450-1600℃. Normal temperature compressive strength 2-6MPa,have good thermal shock resistance;
5. Accurate appearance and size, accelerate the construction speed, reduce the use of refractory clay, ensure the strength and stability of the masonry, thus extending the lining life;
6. It can be processed into special shapes to reduce the number of bricks and joints.
Mullite insulation bricks are widely used in hot blast furnace top, blast furnace body and bottom, glass furnace regenerator, ceramic sintering kiln, and blind lining of petroleum cracking system.
Zhengzhou Rongsheng Kiln Refractory Co.,Ltd. is a professional manufacturer of refractory bricks. The product quality is superior, reaches the high level, best-selling more than 60 countries and regions in the world, the quality is reliable, the delivery is rapid, the price is reasonable, the service is comprehensive. Welcome the majority of users to contact us, to consult, study, purchase, establish a long-term relationship of cooperation.
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