Application of Refractory Materials in Industrial Thermal Furnaces and Kilns

Application of Refractory Materials in Industrial Thermal Furnaces and Kilns

The primary purpose of producing any product is its application, and refractory materials are no exception. The use of refractory materials in industrial thermal furnaces and kilns is generally referred to as "application." Generally, high-quality refractory materials yield better performance and have longer service lives in furnaces and kilns. However, operating conditions play a crucial role. Even when the same refractory material is used in the same thermal equipment, variations in operating conditions often result in significantly different outcomes.

Thus, for refractory material scientists and technologists, continuous learning and research on the operating conditions of various furnaces and thermal equipment are essential. This is particularly important in metallurgical and other industries, where new high-temperature processes are being developed. Studying these conditions holds significant value. The scientific and technical issues related to the application of refractory materials include:

1. Formulating Operating and Management Guidelines: These guidelines cover factors such as temperature, duration, composition of gaseous media, mechanical stress, and the effects of various heating intensifiers.
2. Studying Physical, Chemical, and Mineralogical Changes: Research focuses on changes in refractory materials under the influence of operating and management conditions.
3. Protective Measures for Refractory Materials: Developing strategies to protect refractories from damage.
4. Selection and Development of New Refractory Materials: These materials should be optimally suited to specific operating conditions.

As structural and component materials for high-temperature furnaces and thermal equipment, refractories are widely used in industries such as steelmaking, non-ferrous metals, construction materials, petrochemicals, and machinery. The consumption of refractory materials is closely linked to operational management practices.

Refractory materials play a crucial role in the technical and economic efficiency of the national economy. The "comprehensive consumption index" measures the kilograms of refractory materials consumed per ton of steel produced, serving as an important indicator of a country's industrial and refractory quality levels.

Advances in refractory materials and management practices can significantly enhance industrial processes. For example, replacing silica bricks with basic refractory materials in open-hearth furnace roofs increased steel output by 15%. Furthermore, reducing furnace shutdown intervals for refractory lining replacement and adopting advanced management techniques contribute to a more intensive and efficient metallurgical process.