Refractory injection paste is a type of fiber paste used to repair hot spots in furnaces. Due to its high flowability, it can penetrate the gaps between insulation and create a thermal barrier to eliminate hot spots in the furnace.
Repairing Hot Spots in Furnaces with Refractory Injection Paste
With the expansion of industries, the use of industrial furnaces has increased significantly. These furnaces are considered an important part of various industries such as steel, oil, gas, and petrochemical. If the refractory materials are not selected properly or the refractory work is not performed correctly, the furnaces will develop hot spots. Hot spots can cause further destruction of the refractory layers and consequently damage the metal structure of the furnace. This leads to sudden furnace shutdowns and the need for major overhauls, which are costly and disrupt production.
Properties of Refractory Injection Paste
The fibrous nature of this paste creates a layer with low thermal expansion coefficient and thermal conductivity, as well as high shock resistance. The use of appropriate binders in this product provides adequate strength after installation and drying.
Applications of Refractory Injection Paste
The main applications of this injection paste are:
Hot Repairs
One of the most important applications of this material is hot repair while the furnace is still operating. In this way, hot spots can be repaired and eliminated online without the need to shut down the furnace. This is possible due to the injectability of this paste and the elimination of the need to shut down equipment for repairs.
Coating Surfaces
Refractory injection paste can be used to create a refractory coating on various surfaces such as furnaces, chimneys, burners, and heat exchangers.
Sealing and Waterproofing
Refractory injection paste can be used to seal and waterproof joints and cracks in refractory surfaces.
Creating Refractory Parts
This refractory paste can be used to mold and create refractory parts with complex shapes and special geometries.
Tips for Using the Paste
It is important to follow the manufacturer’s instructions carefully for mixing and applying the paste.
- The paste should be used as soon as possible after mixing, as it has a short setting time.
- The surfaces to which the refractory injection paste is to be applied must be clean, dry, and free of any grease or oil.
- For best results, appropriate equipment should be used for injecting the paste and it should be properly cured after setting.
Product Specifications
The technical specifications of this injection paste with the code AC-Fiber
Paste IJ are given in the table below.
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