Introduction to refractory gunning materials

Refractory gunning material is a special material used to repair and maintain refractory materials. It has the characteristics of high temperature resistance, thermal shock resistance and chemical corrosion resistance. It usually consists of refractory aggregates, binders and additives.

The main function of refractory gunning material is to repair or supplement damaged refractory materials to restore their normal fire resistance and extend their service life. It can be sprayed or constructed on the surface of refractory materials to form a protective layer with high temperature fire resistance.

The characteristics of refractory gunning materials include:

1. High temperature resistance: Fire-resistant gunning materials can withstand thermal shock and continuous high-temperature erosion in high-temperature environments, maintaining stable fire-resistant performance.

2. Thermal shock resistance: Refractory gunning material has good thermal shock resistance, can maintain stable performance under rapid temperature changes and thermal shock, and reduce cracking and peeling of refractory materials.

3. Chemical erosion resistance: Refractory gunning materials can resist acid and alkali corrosion, metal erosion and other chemical media, extending the service life of refractory materials.

4. Easy to construct and repair: Refractory gunning materials can be constructed by spraying, smearing or pouring, which is convenient and quick, and can effectively repair damaged refractory materials.

The application of refractory gunning materials is mainly concentrated in the field of repair and maintenance of refractory materials, especially in the repair of linings of high-temperature industrial equipment and the repair of furnace structures. It can reduce the downtime and maintenance time of equipment due to damage to refractory materials, and improve the reliability and service life of equipment.