Aluminium melting furnace back in operation after relining
An evenly glowing melting furnace is the best proof of a clean refractory lining.
Initial situation
The converter of a secondary aluminium plant was due for refractory lining. Melting units in the aluminium sector place particular demands on the lining: molten aluminium attacks it differently from slag, and charging cold scrap subjects it to sudden loads. The lining was installed by our own installation teams, without subcontractors.
Scope of services
- Refractory lining of the melting chamber
- Zone-specific material selection for hearth, walls, arch and burner area
- Non-wetting mixes in the bath line
- Controlled first heat-up with holding stages
- Documentation of material batches, positions and the heat-up curve
Project data
The task
The bath line as the most heavily loaded zone – molten aluminium must not penetrate and corundum build-up must not clog the cross-section
Thermal shock from charging cold scrap into the hot furnace
Differing loads on hearth, walls, arch and burner area
First heat-up without steam pressure and cracking in the fresh lining
The SBS approach
Non-wetting, corundum-repellent mixes in the bath line
Material selection with sufficient thermal shock resistance to prevent spalling
Zone-specific material selection instead of a one-size-fits-all compromise – each zone receives the appropriate material
Controlled first heat-up with holding stages
Complete documentation of material batches, positions and the heat-up curve as a basis for the next shutdown
Aluminium melting furnace back in operation after relining in pictures
The opened converter in operation – the freshly installed lining under load
Even glow pattern across the entire melting chamber
Measurable results
The key figures of the “Aluminium melting furnace back in operation after relining” project
Similar references
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