Introduction：
Heavy refractory brick is a high-temperature refractory material, which is made of high-purity bauxite, quartz sand, etc. after high-temperature sintering. Heavy refractory bricks have high strength, good corrosion resistance and good fire resistance, and are mainly used for equipment lining and thermal components in high temperature environments;
The main components of heavy refractory bricks are alumina and silica, and a small amount of fluxes such as calcium oxide and magnesium oxide are usually added to reduce the sintering temperature and increase the compactness;
Heavy refractory bricks are widely used in high-temperature equipment in steel, metallurgy, cement, glass and other industries, such as steel converters, electric furnaces, cement kilns, glass melting furnaces, etc.;
Heavy refractory bricks can be divided into 60%, 70%, 80%, 85%, 90% and other varieties according to the alumina content; according to the structure form, they can be divided into ordinary heavy refractory bricks, poured heavy refractory bricks, etc.;
The construction of heavy refractory bricks needs to pay attention to the selection and proportion of materials, reasonably control the addition of water and binders, ensure the uniformity and density of concrete, and take appropriate maintenance measures.
