Applications of Heat-Resistant Steel Fiber Reinforced Refractory Materials

The application of heat-resistant steel fiber reinforced refractory materials is widespread, mainly due to their high strength, toughness, excellent refractory properties, and good thermal shock resistance. Below is a detailed analysis of their applications:

1. Main Application Areas

Industrial Furnace Linings:
Heat-resistant steel fiber reinforced refractory materials are used in industrial furnace linings exposed to high-temperature gases and solid materials, such as electric furnace roofs, heating furnace roofs, soaking furnace covers and walls, and heat treatment furnace linings. They are also suitable for vertical kiln linings, enhancing the furnace's high-temperature resistance and durability.

High-Temperature Containers and Channels:
In components that intermittently contact high-temperature melts, such as electric furnace steel troughs and iron desulfurization stirrers, these materials significantly improve the strength and wear resistance of the parts.

Industrial Boiler Components:
This material can be applied in areas like the furnace mouth, side walls, top, and returner in industrial boilers, improving the overall refractory performance and thermal efficiency of the boiler.

Furnace Repairs:
Heat-resistant steel fiber reinforced refractory materials are also used for industrial furnace repairs, enhancing the toughness, strength, and thermal shock resistance of the cast lining.

2. Key Performance Advantages

• High Strength and Toughness:
  The addition of heat-resistant steel fibers greatly improves the strength and toughness of refractory materials, allowing them to withstand greater external forces and temperature gradients.

• Outstanding Refractory Properties:
  The combination of steel fibers and refractory base materials maintains stable performance at high temperatures, preventing deformation or melting.

• Excellent Thermal Shock Resistance:
  This material can withstand stress changes caused by thermal shock, reducing the development and propagation of micro-cracks, which extends its durability.

• Abrasion Resistance:
  This material has high abrasion resistance, able to endure friction and wear in high-temperature environments for extended periods.

3. Specific Application Examples

• Cement Rotary Kiln:
  Widely used in the cooling cylinder lining, grate cooler, kiln hood, decomposer, and preheater of cement rotary kilns, enhancing their high-temperature resistance and durability.

• Steel Smelting Equipment:
  During the steel smelting process, these materials can be applied to the linings of ladles and hot metal ladles, improving the equipment’s high-temperature performance and lifespan.

• Other Industrial Fields:
  In industries such as petrochemicals, non-ferrous metals, and ceramics, heat-resistant steel fiber reinforced refractory materials are widely applied in various high-temperature equipment and containers.

In conclusion, heat-resistant steel fiber reinforced refractory materials are extensively used across multiple sectors, including industrial furnace linings, high-temperature containers and channels, industrial boiler components, and furnace repairs due to their high strength, toughness, excellent refractory properties, and strong thermal shock resistance.