Calderys Fast Dry Technology Achieves Full Aluminum Furnace Relining
Calderys has achieved a breakthrough that fundamentally changes this equation. In a 25-ton aluminum melting furnace, the Group’s Fast Dry (FD) and Steady Dry (SD) refractory technologies delivered a complete furnace relining with more than 50% of reduction in dry-out time.
This marks the first successful deployment of a 100% FD/SD castable concept for full furnace relining, establishing a new standard for accelerated furnace commissioning.
The technical challenge: constrained dry-out under complex aluminum furnace design
The project faced a complex technical constraint which eliminated the standard method of installing drainage holes and moisture-guiding ropes throughout the hearth structure.
In addition to that, the project had other requirements:
- Operational safety: guaranteeing zero spalling risks despite moisture evacuation limitations
- Accelerated timeline: minimizing production losses
- Energy efficiency: lowering fuel consumption during commissioning to reduce CO₂ emissions
- Long-term reliability: ensuring a 12 to 15-month service life without repairs or refractory revamping
The refractory solution: intelligent zoning with 100% fast dry & steady dry technology
Calderys recently expanded its offering in fast-drying cement-bonded castables, with the ALKON® FD (Fast Dry) technology. This technology can be considered complementary to aluminum customers’ existing configurations; they don’t have to change their processes but can simply apply these as an extension.
The FD technology is a robust addition to the ALKON® range, a monolithic refractory product line specially dedicated to aluminum contact.
In this case study, the refractory lining utilized strategic zoning to optimize performance across different furnace areas.
Aluminum technical support: expert guidance for complex projects
Implementing advanced refractory solutions in complex furnace environments requires more than just material supply. Calderys provides comprehensive technical expertise throughout your project lifecycle:
- Lining design engineering: custom zoning strategies optimized for your furnace geometry and operational profile
- Installation supervision: on-site technical experts ensuring proper mixing, placement, and curing procedures
- Commissioning support: real-time dry-out monitoring and heating curve optimization
- Performance Analysis: Post-startup evaluation and long-term operational guidance
Discover more about Calderys’ refractory services.
Are you interested in solving these challenges? Contact our Aluminum experts.