The Production Process Of Tabular Alumina
The production process of tabular alumina
The development of tabular alumina has brought significant improvements in the efficiency and productivity of steelmaking processes. Its excellent thermal shock resistance and low coefficient of thermal expansion ensure the stability of the steelmaking process, and its low cost makes it an ideal choice for high-performance refractories.
The production process of tabular alumina involves several stages, including:
- Crushing and grinding: The raw materials such as bauxite, limestone, and iron oxide are crushed and ground into a fine powder.
- Baking: The powder is baked at a high temperature to remove moisture and form a dense sintered body.
- Crystallization: The sintered body is crystallized by cooling to a temperature between 2000-2200°C.
- Drying and grinding: The crystallized body is dried and ground into a fine powder.
- Fertilization: The powder is then mixed with fertilizers such as magnesium oxide and aluminum oxide to adjust its properties and yield the final product.
Tabular alumina is mainly used in the steelmaking process, where it is used as a refractory material for lining the ladle, ladle roof, bloom box, molding drum, ladle tundish, and other steelmaking equipment. Its excellent thermal shock resistance and low coefficient of thermal expansion make it ideal for use in high-temperature environments, while its high purity and low price ensure its competitiveness in the market.
In conclusion, tabular alumina is a high-performance refractory material that has been widely used in the steelmaking industry for over 40 years. Its excellent thermal shock resistance, low coefficient of thermal expansion, and low cost make it an ideal choice for refractory materials. The production process of tabular alumina is complex, but its quality is well-established, and it has been recognized as a key material for the development of the modern steel industry.
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