Compared to traditional refractory brick or castable linings, ceramic fiber module linings offer distinct maintenance advantages, primarily due to their "one-piece, one-anchor" installation method-each module is independently fixed without interfering with others, making localized replacement convenient.
PART 1: When Should Modules Be Removed or Replaced?
In practical use, if ceramic fiber modules are operated locally under prolonged overheating beyond their temperature resistance rating, pulverization or detachment may occur. In such cases, customers need not worry. Simply use tools to loosen the fixing nuts, remove the damaged module, and replace it with a spare module of the same grade.
PART 2: Key Points for Replacement Operations
01 Address Promptly to Prevent Further Damage
Localized damage should be replaced in a timely manner to prevent flames from penetrating the protective layer and causing large-scale detachment. During removal, handle gently to avoid impact on surrounding modules.
02 Follow Standard Removal and Installation Steps
During removal, the top and bottom compensating blankets and the backing layer should be removed simultaneously.
If the anchor studs are deformed due to overheating, they should be removed along with the surrounding layered blankets. Replace with newly welded studs and re-lay backing blankets of the same grade.
Before installing new modules, lay the bottom compensating strips first. After positioning the module, check the surrounding gaps and fill them tightly with ceramic fiber blankets.
Finally, spray a curing agent on the surface of the module. The system should only be put back into use after it has completely dried.
03 Monitor Service Life and Replacement Cycles
The normal service life of a ceramic fiber lining can reach up to 5 years. In environments with strong airflow erosion or wear, the maintenance cycle should be appropriately shortened. If large-scale pulverization occurs, it is recommended to shut down the furnace for systematic replacement.
04 Regular Maintenance to Extend Service Life
During use, the module surfaces can be regularly sprayed with a specialized curing agent for maintenance. For example, SUNTHERM high-temperature protective coating can effectively enhance the fiber material's resistance to molten metal erosion and high-temperature airflow impact.
