Topower Refractory High Alumina Brick For Sale ,Customer In United Arab Emirates Ordered 20 Tons
Low creep high alumina refractory bricks are mainly made of high alumina bauxite (the main component is Al₂O₃), fused corundum, fused mullite, etc. as the main raw materials, and are fired at high temperature. Among its chemical composition, the Al₂O₃ content is generally high, usually above 50-70%, and also contains a small amount of impurities such as Fe₂O₃, CaO, SiO₂, etc.
Product Features
Low creep rate: Under high temperature and constant load conditions, its creep rate is low, and it can maintain a stable shape and size for a long time, reducing the damage and maintenance frequency of the kiln lining caused by material deformation.
Good high temperature volume stability: Under high temperature environment, the volume changes little, and it is not easy to crack, peel off, etc., which can effectively maintain the structural integrity and sealing of the kiln and ensure the normal operation of the kiln.
High compressive strength: The compressive strength at room temperature can generally reach more than 70MPa, which can withstand greater pressure and mechanical shock. During the operation of the kiln, it can resist the scouring, wear and impact of airflow of materials.
Good thermal stability: high alumina brick has good thermal shock resistance, can adapt to the frequent start and stop of the kiln and temperature fluctuations, and is not easy to crack or damage due to rapid temperature changes.
Good chemical stability: It has a certain corrosion resistance to chemical substances such as alkali metals, sulfur, and chlorine, and can maintain good performance in some high-temperature environments with chemical erosion.
Product use
Hot blast furnace: It is widely used in the regenerator, combustion chamber and other parts of the hot blast furnace. In the regenerator, low creep refr high alumina refractory bricks can withstand the repeated scouring and thermal stress of high-temperature airflow, and maintain good heat storage and heat release performance; in the combustion chamber, it can resist the erosion of high-temperature flames and the scouring of combustion products, ensuring the long-term stable operation of the hot blast furnace.
Blast furnace: It is commonly used in the belly, waist, and body of the blast furnace. In these parts, low creep refractory bricks must withstand high temperature, high pressure, and erosion and scouring of slag. Its low creep and high compressive strength characteristics can effectively prevent the deformation and damage of the furnace lining and extend the service life of the blast furnace.
Glass furnace: used in the melting, clarification, cooling and other parts of the glass melting furnace.
In the melting part, high alumina bricks can withstand the erosion and scouring of high-temperature glass liquid; in the clarification part, it can maintain a stable temperature and atmosphere environment; in the cooling part, it can resist the thermal stress caused by temperature changes to ensure the quality and efficiency of glass production.
