Refractory bricks are a type of shaped refractory material widely used in high-temperature industrial furnaces. Its main components are usually alumina, silicon oxide, etc. The stability and corrosion resistance of refractory bricks in high-temperature environments make them an indispensable key material in industries such as metallurgy, steel, cement, and chemicals. At present, refractory bricks can be divided into high-alumina refractory bricks, magnesia bricks, chrome bricks, zirconium bricks, etc. according to their composition and use. High-alumina refractory bricks have excellent high-temperature resistance and good mechanical strength due to their high alumina content, and are widely used in high-temperature industrial furnaces such as metallurgy and steel. Magnesia bricks are mostly used in steelmaking furnace tops and other parts due to their excellent resistance to alkaline medium corrosion. Different types of refractory bricks have different compositions and properties, enabling them to perform optimally in various high-temperature environments. In terms of usage, refractory bricks are mainly used in the construction of high-temperature kilns in industries such as metallurgy, steel, cement, and glass. For example, aluminum melting furnaces, glass kilns, rotary kilns, and other high-temperature furnaces and their lining masonry are all practical application areas that require a large number of refractory bricks. These kilns usually require strict high-temperature resistance and long service life, and the high mechanical strength, high-temperature erosion resistance, and good thermal stability of refractory bricks can meet the use requirements of kilns and extend their service life. Data shows that the global demand for refractory bricks is increasing every year, especially in developing countries and regions, where the rapid development of high-temperature industries has driven widespread demand for refractory materials. According to market research data, the global refractory market size is expected to grow at an average annual rate of 7.2% in the next five years, of which refractory bricks account for a large proportion. In addition, with the development of technology, some new types of refractory bricks are also emerging, such as low creep refractory bricks, which are mainly used in some kilns that require long-term high temperature load environments. Their excellent anti-creep performance ensures the long-term stable operation of the kiln. There are also some special-purpose refractory bricks, such as high-cutting resistant refractory bricks used in cement rotary kilns, which can effectively resist the dual effects of high temperature and mechanical stress and significantly extend the operation time of the kiln. In summary, refractory bricks have rich varieties and wide applications in modern high-temperature industries. They are important materials to ensure the normal operation of high-temperature kilns and extend their service life. Data shows that the global demand for refractory bricks is increasing every year, especially in developing countries and regions, where the rapid development of high-temperature industries has driven widespread demand for refractory materials. According to market research data, the global refractory market size is expected to grow at an average annual rate of 7.2% in the next five years, of which refractory bricks account for a large proportion. In addition to the common types mentioned above, such as high-alumina refractory bricks, there are also a small number of refractory bricks used in special high-temperature environments. These special refractory bricks are mainly used in some extremely high-temperature and erosion-resistant occasions, such as high-temperature fission furnaces, molten glass furnaces, etc. These special refractory bricks often require specific proportions of materials to ensure stability and reliability in extreme environments. Therefore, refractory bricks are of many types and widely used, and are an indispensable and important material in modern industrial production.