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TFL THERMA-PANEL SYSTEM OFFERS A NEW APPROACH TO FURNACE HEARTH REFRACTORY LININGS
TFL, Incorporated, a refractory shape manufacturer based in Houston, Texas, has introduced the THERMA-PANEL system for use in car-bottom furnace hearth refractory linings. The shapes are cast from a special type of refractory material with high impact strengths and outstanding resistance to thermal shock damage, which is a typical cause of failure in car-bottom furnace refractory linings.
 The unique geometry of the shapes provide for a stable structure, while allowing no straight through joints in the lining. Because of the independent nature of the interlocking panels, stresses are broken up and cracking is minimized.
With this precast refractory shape system, initial installation time can be drastically reduced, along with cost of installation. For future repairs, spare shapes can be kept on hand, and minimal skilled labor is required. Repairs can also be easily isolated to just the replacement of those shapes that may be damaged.
Another added benefit from the THERMA-PANEL system is the elimination of an initial bake out of the lining. Since the shapes are pre-fired in TFL’s digitally-controlled furnace, a long and expensive on-site bake-out is normally not necessary. TFL’s initial firing schedule ensures that the shapes are fired through their entire thickness, and that physical properties of the material are totally optimized.
In-house design by TFL can make adaptation of the system for existing furnaces simple. We offer CAD generated 2D and 3D drawing capabilities. When necessary, an integrated anchoring system suitable for the application can be incorporated into the shape.
The THERMA-PANEL system represents a tremendous step forward for furnace refractory linings. Simplified installation, longer and more predictable wear, and overall better performance with THERMA-PANEL shapes can translate to reduced maintenance costs for furnace refractory linings.
Additional Information
Refractory Materials: Alumina-Based Cements
Benefits of Using Precast Shapes in Refractory Linings
Predictive Maintenance Planning
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