High-alumina high-strength refractory castables are widely used in various industrial fields due to their excellent refractoriness, high strength, and good corrosion resistance. Below are the main application areas:
1. Steel Industry:
In steelmaking processes, high-alumina high-strength refractory castables are extensively used in key parts of blast furnaces, converters, electric furnaces, and more. These materials effectively resist the erosion of high-temperature molten metals, maintaining the integrity of the furnace lining and extending its service life. They are also used in furnace linings such as hearths, furnace beds, furnace roofs, and furnace doors, including in heating furnaces and melting furnaces.
2. Non-Ferrous Metal Industry:
During non-ferrous metal smelting and processing, high-alumina high-strength refractory castables are used to construct furnace linings, ensuring the high-temperature stability and safety of the furnace. For example, aluminum smelting furnaces, copper smelting furnaces, and similar equipment require these materials. They are also suitable for the refractory linings of aluminum electrolyzers, copper melting furnaces, and nickel furnaces.
3. Ceramic Industry:
In the ceramic firing process, high-alumina high-strength refractory castables are used to build kiln linings. They can withstand high temperatures and atmospheric corrosion, ensuring the quality and yield of ceramic products. These materials are also suitable for lining various high-temperature burner components and for lining water pipes in heating furnaces.
4. Glass Industry:
In glass melting processes, high-alumina high-strength refractory castables are used for constructing the furnace bottom and furnace walls in glass melting furnaces. They are capable of withstanding the erosion and scouring from high-temperature molten glass, maintaining the continuity and stability of glass production.
5. Petrochemical Industry:
These refractory castables are used in the linings of devices such as cracking furnaces, hydrogenation converters, and catalytic cracking units, meeting the high-temperature, high-pressure, and corrosive environment requirements of these equipment.
6. Building Materials Industry:
High-alumina high-strength refractory castables are used in the refractory linings of equipment such as cement rotary kilns and glass kilns. For example, they can be used in various parts of cement rotary kilns, such as kiln door covers, clinker coolers, preheaters, decomposing furnaces, and tertiary air ducts.
7. Power Industry:
These materials are applied in the refractory linings of boilers in power plants, including those that burn coal, gas, or biomass. They are also used in various parts of power plant furnaces, melting furnaces, tempering furnaces, heat treatment furnaces, and induction furnaces.
8. Waste Incineration Industry:
High-alumina high-strength refractory castables are used in the refractory linings of waste incinerators to improve their thermal resistance performance.
9. Other Applications:
In addition to the above industries, high-alumina high-strength refractory castables are widely used in the internal lining protection of mechanical parts and equipment that require high temperature resistance, wear resistance, and corrosion resistance.
Conclusion:
In conclusion, high-alumina high-strength refractory castables play an important role in various industrial fields. Their excellent refractoriness, high strength, and good corrosion resistance make them an indispensable key material in these sectors.
